Patent application number | Description | Published |
20090196513 | Compressive Sampling for Multimedia Coding - An apparatus comprising a decorrelator, a compressive sampler coupled to the decorrelator, and an encoder coupled to the compressive sampler, wherein the compressive sampler is configured to receive sparse data and compress the sparse data using compressive sampling. Also included is a network component comprising at least one processor configured to implement a method comprising decorrelating sparse data or data including sparse data, compressing the sparse data using compressive sampling, and encoding the data. Also included is a method comprising receiving a data stream comprising a sparse data portion, compressing the sparse data portion using compressive sampling, and compressing the remaining data portion without using compressive sampling. | 08-06-2009 |
20100070645 | Rate Control for Stream Switching - An apparatus comprising a first node configured to communicate with a second node, wherein the first node is configured to receive a first stream from the second node, receive a bridging stream from the second node, and receive the second stream from the second node, and wherein the bridging stream has a lower bit-rate than the second stream. Included is an apparatus comprising at least one processor configured to implement a method comprising transmitting a first stream at a first time, transmitting a bridging stream that has a bit-rate greater than the first stream and less than the second stream at a second time, and transmitting the second stream at a third time. | 03-18-2010 |
20100080473 | System and Method for Compressing and Decompressing Images and Video - A system and method for image and video compression and decompression using compressive sensing is provided. A method for decompressing a compressed image, where the compressed image having a plurality of compressed image blocks, and the method is performed on a processor, includes selecting a compressed image block, entropy decoding the selected compressed image block, and recovering an image block corresponding to the decoded selected compressed image block using compressive sensing recovery. | 04-01-2010 |
20100098162 | System and Method for Bit-Allocation in Video Coding - A system and method for region-of-interest-based bit-allocation scheme for video coding is provided. A method for encoding an image sequence of inter-frames and intra-frames includes grouping the inter-frames and the intra-frames in at least one group of pictures (GOP), and performing a frame-level bit-allocation to inter-frames and the intra-frames in the GOP. For each frame of the inter-frames and the intra-frames in the GOP, the method also includes partitioning the frame into a plurality of macroblocks, identifying macroblocks in the plurality of macroblocks as having regions of interest (ROI), and performing a macroblock level bit-allocation for the frame based on macroblocks identified as having ROI. The method further includes encoding the image sequence based on the bit-allocations, thereby producing an encoded image sequence, and outputting the encoded image sequence. | 04-22-2010 |
20100177194 | Image Processing System and Method for Object Tracking - An image processing method can be performed on a video image that includes an initial frame and a plurality of subsequent frames. An object is located within the initial frame of the video image and a histogram related to the object is generated. A foreground map that includes the object is also generated. For each subsequent frame, a mean shift iteration is performed to adjust the location of the object within the current frame. The histogram related to the object and the foreground map can then be updated. | 07-15-2010 |
20100177969 | Method and System for Image Processing to Classify an Object in an Image - In an image processing method, an object is located within an image. An area around the object is determined and divided into at least first and second portions based upon image information within the area. The object can then be classified based upon both image information in the first portion of the area and image information in the second portion of the area. | 07-15-2010 |
20110087794 | System and Method to Support Different Ingest and Delivery Schemes for a Content Delivery Network - In accordance with an embodiment, a method of operating a computer server includes receiving streaming media data. The streaming media data includes content fragments and a media description file, and the media description file includes metadata describing the content fragments. The method also includes storing the content fragments in a cache. | 04-14-2011 |
20110088076 | System and Method for Media Adaptation - A system and method for media adaptation are provided. A method for providing media to an electronic device includes receiving a request for a media with a set of characteristics, and determining if the media with the set of characteristics resides in a media storage. The method also includes if the media with the set of characteristics resides in the media storage, retrieving the media with the set of characteristics from the media storage. The method further includes if the media with the set of characteristics does not reside in the media storage, transcoding an alternate media with an alternate set of characteristics to produce a transcoded media with the set of characteristics. The method additionally includes providing the media with the set of characteristics from the media storage or the transcoded media with the set of characteristics to the electronic device. | 04-14-2011 |
20110119324 | Media Distribution with Service Continuity - System and methods for media distribution are described. In one embodiment, a method of media distribution includes rendering of a media to a user, stopping the rendering of the media, and storing remaining media not rendered to the user in a user server. The method further includes receiving a request to stream the remaining media to the user, dividing the remaining media into segments, and assigning a priority to each segment. The remaining media is streamed, leaving out segments with priority lower than a threshold priority. | 05-19-2011 |
20110179185 | System and Method for Adaptive Differentiated Streaming - A system and method for adaptive differentiated streaming are provided. A method for server operations includes establishing a connection for streaming media to a subscriber, receiving a request for a selected media content alternative, and streaming the selected media content alternative to the subscriber. The media content alternative to be streamed is selected based on a classification of the subscriber. | 07-21-2011 |
20110179186 | System and Method for Differentiated Services in Adaptive Streaming - A system and method for differentiated services in adaptive streaming are provided. A method for server operations includes: determining an optimization of aggregated quality of experience scores for a set of candidate subscribers served by a server; adjusting a service rate of at least one subscriber based on the determined optimization of aggregated quality of experience scores; and streaming information to the at least one subscriber based on the adjusted service rate. The optimization is based on one or more of: a subscriber level for one or more of the plurality of subscribers; a current service rate; and available service rates. | 07-21-2011 |
20110184807 | System and Method for Filtering Targeted Advertisements for Video Content Delivery - In accordance with an embodiment, a method of inserting advertisements into video content includes electronically filtering a first list of advertisements according to user preference data to determine a second list of advertisements. The video content has a plurality of segments, each segment of which is associated with a category from the plurality of categories. Furthermore, each advertisement in the first list of advertisements is associated with a video category from a plurality of categories, and electronically filtering includes filtering the first list of advertisements for the plurality of video segments on a segment by segment basis. The method further includes transmitting the second list of advertisements to a user device for insertion with the video content. | 07-28-2011 |
20110185381 | System and Method for Matching Targeted Advertisements for Video Content Delivery - In accordance with an embodiment, a method of matching video content to advertising content includes electronically receiving a video content metadata from a content provider, and matching the video content metadata to advertising content metadata of a global list of advertisements. The video content metadata corresponds to video content being sent to a user device and includes at least one keyword. Furthermore, the advertising content metadata corresponds to advertising content and includes at least one keyword. Matching the video content metadata to advertising content metadata includes comparing the at least one keyword of the video content metadata to the at least one keyword of the advertising content metadata. | 07-28-2011 |
20110185384 | System and Method for Targeted Advertisements for Video Content Delivery - In accordance with an embodiment, a method of inserting advertisements into video content includes electronically receiving video content metadata from a content provider, matching the video content metadata to advertising content metadata to provide a first list of advertisements, filtering the first list of advertisements according to user preference data to determine a second list of advertisements, and transmitting the second list of advertisements to a user device for insertion into the video content. The video content metadata corresponds to video content being sent to a user device, and the advertising content metadata corresponds to advertising content. | 07-28-2011 |
20110188703 | System and Method for Securing Media Content - A system and method for securing media content are provided. A method for distributing security media content includes embedding a marking payload into media content, thereby producing embedded media content, applying a transform to the embedded media content, thereby producing secured media content, and distributing the secured media content. The marking payload is embedded based on perceptual information regarding the media content. | 08-04-2011 |
20110191577 | Media Processing Devices For Adaptive Delivery Of On-Demand Media, And Methods Thereof - In one embodiment, a method of streaming media includes partitioning a media stream to be transmitted into a first stream of media segments at a media server. The first stream of the media segments has a first sequence. An index table is generated to identify the first sequence of the first stream of the media segments. The index table is encrypted using a key. A second stream of the media segments is generated. The second stream has a second sequence, which is random relative to the first sequence. The encrypted index table and a transcoded media stream having the second stream of the media segments are transmitted. | 08-04-2011 |
20110191587 | Media Processing Devices With Joint Encryption-Compression, Joint Decryption-Decompression, And Methods Thereof - In one embodiment, a method of adaptive media streaming includes receiving a cipher media stream at a media device. The cipher media stream is compliant with a media compression standard. The cipher media stream is decrypted and decoded using an inverse stream cipher algorithm and a compressed media stream is generated by combining the cipher media stream with a keystream. | 08-04-2011 |
20110191679 | System and Method for Online Media Preview - An embodiment of a system and method for online media preview extracts a plurality of preview frames from a media file. The preview frames are saved in a layered data structure. In addition, the preview frames may be scaled to a lower resolution so that the preview file formed by the preview frames is reduced in size. After receiving a preview request, a delivery scheduling scheme delivers the preview frames at selected time points to minimize startup delay and playback jitter. | 08-04-2011 |
20110196981 | Combined Binary String for Signaling Byte Range of Media Fragments in Adaptive Streaming - A system and method for providing media streaming are provided. A media description file having a range string indicator is used to specify location offsets of a plurality of media fragments within a media file. The range string may be stored directly in the media description file or the media description file may contain an indicator specifying a file containing the range string. The media description file may also include a range unit specifying the size of the offsets in the range string. In an embodiment, offsets within the individual media fragments may also be provided, either in the media description file or in a different file. | 08-11-2011 |
20120033949 | Video Skimming Methods and Systems - In an embodiment, a method of creating a skimming preview of a video includes electronically receiving a plurality of video shots, analyzing each frame in a video shot from the plurality of video shots, where analyzing includes determining a saliency of each frame of the video shot. The method also includes determining a key frame of the video shot based on the saliency of each frame the video shot, extracting visual features from the key frame, performing shot clustering of the plurality of video shots to determine concept patterns based on the visual features, and generating a reconstruction reference tree based on the shot clustering. The reconstruction reference tree includes video shots categorized according to each concept pattern. | 02-09-2012 |
20120070125 | Method and Apparatus for Scrub Preview Services - In accordance with an embodiment of the present invention, a method of streaming media with a media preview includes generating a preview data by extracting preview information from a media file to be streamed. The preview data has a multi-dimensional hierarchical data structure having a plurality of layers with increasing content of the preview information in each layer of the plurality of layers. The preview data is configured to provide a differentiated preview service. | 03-22-2012 |
20120070129 | Method and Apparatus for Scrub Preview Services - In accordance with an embodiment of the present invention, a method of streaming a media preview includes delivering a preview data having preview information from a media file to be streamed. The preview data has a multi-dimensional hierarchical data structure has a plurality of layers with increasing content of the preview information in each layer of the plurality of layers. The preview data is configured to provide an adaptive and scalable preview service. | 03-22-2012 |
20120076206 | Compressed Domain Video Watermarking - In accordance with an embodiment, a method of watermarking encoded video frames includes electronically receiving a bitstream comprising a plurality of encoded video frames that are divided into a plurality of macro-blocks, determining macro-block dependencies based on prediction information in the received bitstream, determining a set of macro-blocks having a minimal number of macro-block dependencies, and embedding a watermark in a plurality of macro-blocks selected from the set of macro-blocks having the minimal number of macro-block dependencies. | 03-29-2012 |
20120076422 | System and Method for Image Authentication - In accordance with an embodiment, a method of authenticating images includes electronically receiving an anchor image and a query image, performing a feature point extraction of an anchor image, and performing a feature point extraction of a query image. The method also includes clustering feature points of the anchor image and feature points of the query image, where clustering includes determining matching feature points, determining outlier feature points, and excluding outlier feature points. Whether the anchor image is similar to the query image is determined based on a distance between the feature points of the anchor image and the feature points of the query image. If the anchor image is similar to the query image, possible tampered areas of the query image based on the outlier feature points are identified. | 03-29-2012 |
20120087583 | Video Signature Based on Image Hashing and Shot Detection - In accordance with an embodiment, A method of comparing a first group of frames to a second group of frames includes electronically receiving the first group of frames, selecting a group of frames from the first group of frames as a first key frame set, calculating a hash distance between an image hash for each frame in the first key frame set to an image hash of each frame of a second key frame set taken from second group of frames, and choosing frames in the first group of frames with a minimum hash distances to respective reference frames to form a series of minimum hash distances. | 04-12-2012 |
20120102154 | Cloud-Based Transcoding Platform Systems and Methods - Methods and systems for transcoding in a cloud computing platform are disclosed. According to an embodiment, a receiver receives an uploading file by one data block at a time, and stores the received data blocks in various storage modules. Small segment files are then generated when the size of the received data blocks is larger than a threshold. A transcoder transcodes the small segment files from one format such as a bit rate or a frame size to another while the receiver is still receiving a new data block. The transcoded small segment files may be stitched together to form a stitched file, which may be stored in a storage module to be downloaded through a content distribution network (CDN). The transcoded small segment files may be passed to streaming servers for streaming over a network while the receiver is still receiving a new data block of the uploading file. | 04-26-2012 |
20120123780 | Method and system for video summarization - A video summary method comprises dividing a video into a plurality of video shots, analyzing each frame in a video shot from the plurality of video shots, determining a saliency of each frame of the video shot, determining a key frame of the video shot based on the saliency of each frame of the video shot, extracting visual features from the key frame and performing shot clustering of the plurality of video shots to determine concept patterns based on the visual features. The method further comprises fusing different concept patterns using a saliency tuning method and generating a summary of the video based upon a global optimization method. | 05-17-2012 |
20120180084 | Method and Apparatus for Video Insertion - An embodiment of a system and method that inserts a virtual image into a sequence of video frames. The method includes capturing geometric characteristics of the sequence of video frames, employing the captured geometric characteristics to define an area of the video frames for insertion of a virtual image, registering a video camera to the captured geometric characteristics, identifying features in the sequence of video frames to identify the defined area of video frames for insertion of the virtual image, and inserting the virtual image in the defined area. Vanishing points are estimated to determine the geometric characteristics, and the virtual image is blended with the area of video frames prior to inserting the virtual image in the defined area. | 07-12-2012 |
20120183173 | System and Method for Content Protection in a Content Delivery Network - An embodiment of an apparatus to authenticate a sequence of video frames includes a process to choose intra-frames of the sequence and sample DC components thereof to produce a set of test fingerprints. To reduce a dimensionality of the test fingerprints, the DC components of the chosen intra-frames are multiplied by a projection matrix formed of eigenvectors associated with the larger eigenvalues of a covariance matrix for a library of frames. The projected test fingerprints are compared against a reference set of fingerprints for authentication. Time-stamp spacings of the chosen intra-frames are determined, and these spacings are employed to select candidate frames for authentication in the reference set of fingerprints. | 07-19-2012 |
20120216118 | Methods and Apparatus for Media Navigation - In accordance with an embodiment of the present invention, a method of playing a media includes receiving a first media stream of the media and displaying the first media stream in a first window of a media player. The first media stream includes navigable parts configured to be selected for higher resolution streaming. A request to stream a selected navigable part of the first media stream is sent. A second media stream with the selected navigable part is received and displayed. The resolution of the selected navigable part in the second media stream is higher than the resolution of the selected navigable part in the first media stream. | 08-23-2012 |
20120216121 | Methods and Apparatus for Media Navigation - In accordance with an embodiment of the present invention, an apparatus for streaming a media includes a server side receiver for receiving a request to stream a media from a media player. The apparatus further includes a content generator, a server side transmitter, and a media stream generator. The content generator is configured to generate content information providing a plurality of presentation options to consume the media. The server side transmitter is configured to send the content information. The server side receiver is further configured to receive a selected presentation option from amongst the plurality of presentation options. The media stream generator is configured to generate a media stream comprising the media based on the selected presentation option. | 08-23-2012 |
20120242900 | Media Processing Devices For Detecting and Ranking Insertion Points In Media, And Methods Thereof - In accordance with an embodiment of the present invention, a method for inserting secondary content into a media stream includes dividing the media stream having a plurality of frames into a plurality of shots at a processor. The method further includes grouping consecutive shots from the plurality of shots into a plurality of scenes. A first list of insertion points is generated for introducing the secondary content. The insertion points of the first list are boundaries between consecutive scenes in the plurality of scenes. An average insertion point saliency of the media stream is generated at the insertion points in the first list. A second list of insertion points is then generated. The insertion points in the second list are arranged to maximize a function of the average insertion point saliency and a distance between each insertion point in the second list with other insertion points in the second list. | 09-27-2012 |
20120278441 | System and Method for Quality of Experience Estimation - A system and method for quality of experience estimation are provided. A method for communications device operations includes selecting a portion of a media content stream, processing the portion to produce a processed portion, generating a signature from the processed portion, transmitting the signature, and transmitting the media content stream. | 11-01-2012 |
20120281139 | System and Method for Video Caption Re-Overlaying for Video Adaptation and Retargeting - In accordance with an embodiment, a method of processing an electronic image having caption text includes receiving the electronic source image, detecting the caption text in the electronic source image, reformatting the electronic source image, reformatting the caption text, and overlaying the reformatted caption text on the reformatted electronic image to form a resultant image. | 11-08-2012 |
20130044595 | System and Method for Transmission Control Protocol Service Delivery in Wireless Communications Systems - A method for delivering packets in a wireless communications system includes determining a cause of loss for a previously transmitted packet based on a packet acknowledgement corresponding to the previously transmitted packet, the packet acknowledgement including at least one of a wireless loss indicator and a congestion warning indicator for the wireless communications system. The method also includes adjusting a transmission parameter in a packet transmission protocol according to the cause of loss, and retransmitting the previously transmitted packet. | 02-21-2013 |
20130044598 | System and Method for Transmission Control Protocol Slow-Start - An embodiment of a system and method that uses inline measurements to probe available bandwidth for a transmission control protocol, and adaptively sets a slow-start threshold according to the available bandwidth. The method includes initializing a congestion window “cwnd,” sending cwnd packets, estimating an available bandwidth for the cwnd packets. The congestion window cwnd is set to a higher number, and the higher number of further packets is sent if the available bandwidth is greater than a first threshold level. The available bandwidth is re-estimated for the higher number of the further packets, and a soft start threshold “ssthresh” is set to the re-estimated available bandwidth. A statistical measure is calculated for the re-estimated available bandwidth, and the congestion window cwnd is set equal to ssthresh if a ratio of the statistical measure to the re-estimated available bandwidth is less than a second threshold level. | 02-21-2013 |
20130050574 | System and Method for Retargeting Video Sequences - A system and method for retargeting video sequences are provided. A method for retargeting a video includes a plurality of frames includes determining saliency information for the plurality of frames, determining a cost metric for the video, and retargeting the video based on the cost metric to produce a retargeted video. The cost metric considers loss due to cropping, scaling, temporal factors, and spatial factors. The retargeting makes use of a crop window for each frame in the plurality of frames. | 02-28-2013 |
20130089107 | Method and Apparatus for Multimedia Queue Management - Methods and systems for a multimedia queue management solution that maintaining graceful Quality of Experience (QoE) degradation are provided. The method selects a frame from all weighted queues based on a gradient function indicating a network performance rate change and a distortion rate caused by the frame and its related frames in the queue, and dropping the selected frame and all its related frames, and continues to drop similarly chosen frame until a network performance rate change caused by the dropping frame and its related frames meets a predetermined performance metric. A frame gradient is a distortion rate divided by a network performance rate change caused by the frame and its related frames, and a distortion rate is based on a sum of each individual frame distortion rate when the frame and its related frames are replaced by some other frames derived from remaining frames based on a replacement method. | 04-11-2013 |
20130144984 | Systems and Methods for Connection Pooling for Video Streaming in Content Delivery Networks - System and methods for connection pooling for video streaming in content delivery networks (CSNs) are provided. An embodiment method for connection pooling in a content delivery network (CDN) by a proxy server includes receiving, from a client, a request for media content, sending, to a control server, a query to locate an origin media server having the media content if the media content is cache-missing, receiving, from the control server, information regarding the origin media server having the media content requested by the client, and forwarding the request for the media content to the origin media server having the media content using a reusable connection from a pool of the reusable connections between the proxy server and the origin media server if the reusable connection is unoccupied. | 06-06-2013 |
20130177085 | Systems and Methods for Video Denoising - A method for video denoising, the method includes extracting a current pixel from a current video frame and n-1 pixels from respective n-1 previous video frames to form an n-point pixel data set, wherein the current pixel has an initial value; temporally filtering the current pixel using the n-point pixel data set to generate a temporal estimated true value for the pixel; estimating a quantity of outliers in the n-point pixel data set; if the quantity of outliers is greater than or equal to a threshold, spatially filtering the current pixel using neighboring pixels in the current video frame to generate an spatial estimated true value for the pixel, and using the spatial estimated true value for the pixel as a final estimated value for the pixel; if the quantity of outliers is less than the threshold, using the temporal estimated true value for the pixel as the final estimated value for the pixel. | 07-11-2013 |
20130198783 | System and Method for Organizing Multimedia Content - In one embodiment, a method of organizing multimedia content includes obtaining, by a server, a first video program. Also, the method includes selecting a first video, where the first video is a first subset of the first video program, and where the first video forms a first branch of the first video program and selecting a second video, where the second video is a second subset of the first video program. Additionally, the method includes selecting a first partial video, where the first partial video is a first subset of the first video and selecting a second partial video, where the second partial video is a second subset of the first video. The method also includes establishing a multi-dimensional index tree including a first video program level, a first video level, a first partial video level. | 08-01-2013 |
20130265869 | Systems and Methods for Selective Data Redundancy Elimination for Resource Constrained Hosts - System and method embodiments are provided for selective data redundancy elimination. In an embodiment, the method includes receiving, at a transmission point, an incoming data packet containing content, wherein the content comprises a content type, eliminating, with the transmission point, redundant data elements from the data packet when the content type matches a selective data redundancy elimination type, and bypassing, with the transmission point, selective data redundancy elimination when the content type matches a bypass-elimination type. | 10-10-2013 |
20130275419 | System and Method for Quality of Experience Aware Media Search and Recommendation with Unified Portal - A network element comprising a processor configured to receive a plurality of search responses from a plurality of media content service providers associated with a search request triggered by the search request, and rank the search responses based on maximizing an end user's quality of experience (QoE). Included is a network element comprising a processor configured to receive a plurality of media content from a plurality of media content service providers, store the plurality of media content for a plurality of end users, receive a media content search request from a user terminal, rank the media content based upon maximizing the user terminal's QoE. Also included is a method comprising requesting media content from a plurality of media content service providers on behalf of a user terminal, receiving data associated with the media content from the plurality of media content service providers and aggregating the media content data. | 10-17-2013 |
20130279588 | Using Depth Information to Assist Motion Compensation-Based Video Coding - An apparatus comprising a plurality of ports, and a processor coupled to the ports and configured to receive a plurality of video frames from any of the ports, wherein the video frames comprise an object and a background, and wherein the video frames comprise a plurality of color pixels for the object and the background, receive a plurality of depth frames from any of the ports, wherein the depth frames comprise the object and the background, and wherein the depth frames comprise an indication of an object depth relative to a background depth, and encode the video frames using the indication of the object depth relative to the background depth. | 10-24-2013 |
20130286288 | System and Method for Encoder-Integrated Media Denoising - Embodiments are provided herein to achieve video or image sequence encoding with an improved denoising algorithm that is both efficient computationally and has acceptable overhead cost in comparison to other denoising schemes for video encoding. The embodiments include using recursive bilateral filtering as part of the denoising algorithm, which is integrated into a video encoder to overcome limitations of other encoder-integrated denoising algorithms. An embodiment method includes receiving, at a filtering and residual computation function at the encoder, a macro block comprising a plurality of pixels. The filtering and residual computation function also receives, from a motion estimation function at the encoder, a reference block. The reference block comprises a plurality of reference pixels corresponding to the macro block. The filtering and residual computation function further applies a recursive bilateral filter function to each of the pixels of the macro block using the reference pixels of the reference block. | 10-31-2013 |
20140169663 | System and Method for Video Detection and Tracking - System and method embodiments are provided to enable features and functionalities for automatically detecting and localizing the position of an object in a video frame and tracking the moving object in the video over time. One method includes detecting a plurality of objects in a video frame using a combined Histograms of Oriented Gradients (HOG) and Local Binary Pattern (LBP) algorithm, highlighting the detected objects, and tracking one of the detected objects that is selected by a user in a plurality of subsequent video frames. Also included is a user device configured to detect a plurality of objects in a video frame displayed on a display screen coupled to the user device using a combined HOG and LBP algorithm, highlight the detected objects, and track one of the detected objects that is selected by a user in a plurality of subsequent video frames on the display screen. | 06-19-2014 |
20140184721 | Method and Apparatus for Performing a Video Conference - A method for performing a video conference in a mobile phone is provided. The video conference involves a plurality of conferencing devices that display presentation content and a video image of one or more participants in the video conference. The mobile phone receives a first and second real-time transport protocol (RTP) packets including a video image of a participant and presentation content in the video conference, respectively. The video image of the participant includes a face portion of the participant and a background portion. The mobile phone decodes the video image of the participant and the presentation content, extracts the face portion of the participant from the video image of the participant, overlays the face portion of the participant over a portion of the presentation content to form a composite image, and displays the composite image on a display device of the mobile phone. | 07-03-2014 |
20140317241 | Utility-Maximization Framework For Dynamic Adaptive Video Streaming Over Hypertext Transfer Protocol In Multiuser-Multiple Input Multiple Output Long-Term Evolution Networks - A method for scheduling user equipment (UE) devices comprising sorting the plurality of UE devices based on a weight of priority associated with each of the UE devices with respect to a plurality of subbands, and assigning one or more of the UE devices to each of the subbands using the weight of priority associated with the UE devices, wherein the weight of priority is based on one or more network utility functions associated with the UE devices. A computer program product comprising computer executable instructions to receive a media content segment using a dynamic adaptive video streaming over hypertext transfer protocol (HTTP) (DASH) protocol, monitor a playback buffer size of a UE device, monitor a battery energy level of the UE device, and adjust a representation quality level in a segment request based on the target requested video rate, the playback buffer size and the battery energy level. | 10-23-2014 |
20140348439 | System and Method for Compressing Images and Video - A system and method for image and video compression using compressive sensing is provided. An embodiment method for compressing an image having a plurality of image blocks includes selecting an image block from the plurality of image blocks to compress, computing a sum of sinusoidal signals at different frequencies and amplitudes representation for the selected image block, quantizing the amplitudes of the sinusoidal signals at different frequencies, and saving the quantized amplitudes as a first compressed image block. The method also includes truncating the quantized amplitudes, thereby producing truncated quantized amplitudes, saving the truncated quantized amplitudes as a second compressed image block, and selecting either the first compressed image block or the second compressed image block as a final compressed image block. The selecting is based on a measure of the quality of the first compressed image block and the second compressed image block. | 11-27-2014 |
20150062285 | MULTICAST TREE PACKING FOR MULTI-PARTY VIDEO CONFERENCING UNDER SDN ENVIRONMENT - Method, device and apparatus for delivering video telephony by using a media controller and a software defined networking (SDN) controller to enable multicasting for multi-party video conferencing. A media controller generates a video sending rate for each of the plurality of client devices based on a received video conference request and received network information. The media controller determines and independently constructs a maximum-rate delay-bounded multicast tree for each of the plurality of client devices that supports the largest possible multicast rate. The media controller determines a common congested link in the multicast trees, re-routes the multicast tree with the common congested link for the client device with the lowest weight of utility divided by its video sending rate and creating two subtrees, and iteratively re-routes the multicast trees until an aggregate video sending rate of the multicast trees sharing the common congested link meets a link capacity of the common congested link. | 03-05-2015 |
20150063112 | DYNAMIC PRIORITY QUEUE MAPPING FOR QOS ROUTING IN SOFTWARE DEFINED NETWORKS - A QoS management scheme for SDN. Network resource availability of routers and switches are maintained in a central resource database of a SDN controller. The SDN controller performs resource reservation, admission control and route calculation. When a flow is admitted or completed, the resource database is updated accordingly. Dynamic queue mapping for QoS routing in SDN is also provided. For a traffic flow with a certain traffic description and delay requirement, the queue mapping protocol dynamically assigns the flow to different priority queues at different switches along its routing path. Compared with the static mapping of a flow to a specified priority queue, the disclosed mapping is more flexible and uses network resources more efficiently. | 03-05-2015 |