Patent application number | Description | Published |
20080304454 | HETEROGENEOUS NETWORK AND METHOD FOR HANDOVER BETWEEN HETEROGENEOUS NETWORKS - A heterogeneous network includes a terminal side and a network side. The network side includes an original PoA and handover candidate PoAs. The terminal side is used to select the handover candidate PoAs, initiate a media independent handover request, terminate a connection with the original PoA, and establish a connection with the handover candidate PoAs. The original PoA is used to terminate the connection with the terminal side according to the media independent handover request initiated by the terminal side. The handover candidate PoAs is used to establish the connection with the terminal side according to the media independent handover request initiated by the terminal side. A method for handover between heterogeneous networks initiated by the terminal side and the network side based on the 802.21 architecture is also provided, which improves the processing of the handover process. | 12-11-2008 |
20080318580 | Method And Apparatus For Power Management In Handover Between Heterogeneous Networks - A method for power management in handover between heterogeneous networks comprising: an MIH layer obtains power information and provides it for an MIH user layer; the MIH user layer determines the handover policy according to the power information. In various embodiments of the disclosure, the MIH layer triggers an event so that the MIH user layer can obtain power information, and select a lower-layer network connection automatically according to the current power status, thus implementing handover; the MIH user layer sends a query request to the MIH layer to obtain power consumption parameters from the network, and selects a lower-layer network connection according to the power consumption and the current power status, thus implementing handover and making more accurate and effective decisions in the handover. | 12-25-2008 |
20090036132 | Method And System For Radio Network Environment Detection And Reporting, And Media Independent Handover Apparatus - A method and a system for radio network environment detection and reporting in a network handover and a media independent handover (MIH) apparatus are provided. The method includes the following: an MIH function (MIHF) at a terminal side initiates a network scan, and generates a parameter report on a radio network environment around the terminal including dynamic information and static information of a scanned point of access (PoA) after the scan is completed; the MIHF at the terminal side sends the parameter report on the radio network environment to an upper layer at the terminal side or to an MIHF at a network side. The method and system support homogeneous and heterogeneous network environments at the same time. | 02-05-2009 |
20100053307 | COMMUNICATION TERMINAL AND INFORMATION SYSTEM - A communication terminal includes: an image or video collecting and generating module, adapted to collect and generate 3D image or video data; a communication module, adapted to send or receive image or video and generated 3D image or video data; and an image or video display module, adapted to display the 3D image or video according to the collected or received and generated 3D image or video data. An information system includes a 3D image or video information center. The 3D image or video information center further includes: a 3D image or video information relay, adapted to interact with the communication terminal; and a 3D image or video information server, adapted to store 3D image or video information and convert between 3D image or video information and SMS. The communication terminal features simple structure and good performance. The information system supports communication through 3D image or video information. | 03-04-2010 |
20100202535 | VIDEO ENCODING DECODING METHOD AND DEVICE AND VIDEO - A video encoding decoding method and device and a video codec are provided. The video encoding method includes the following steps. A first view picture is basic-layer encoded as a reference view picture, prediction information is extracted in combination with a second view picture, and the second view picture is re-created. A residual value is calculated according to a re-created second view picture and the original second view picture. When the residual value is greater than a threshold, both the residual value and the prediction information are enhanced-layer encoded simultaneously; otherwise, only the prediction information is enhanced-layer encoded. Encoded information is obtained by multiplexing the enhanced-layer encoding with the basic-layer encoding of the first video picture. The video decoding method includes the following steps. After de-multiplex, basic-layer encoded information and enhanced-layer encoded information are decoded respectively to obtain a first view picture, prediction information, and a residual value, and then a second view picture is re-created. The embodiments of the invention can realize the effective compression of stereo video data, reduce an encoding complexity, and are compatible with the conventional two dimensional displaying, so as to correctly and easily re-create a stereo view picture. | 08-12-2010 |
20100238264 | THREE DIMENSIONAL VIDEO COMMUNICATION TERMINAL, SYSTEM, AND METHOD - A 3D video communication terminal, system, and method are disclosed. The terminal includes a transmitting device, a receiving device, in which the transmitting device includes a camera and image processing unit, an encoding unit and a transmitting unit; the receiving device includes a receiving unit, a decoding unit, a restructuring unit, and a rendering unit. The 3D video communication system includes: a three dimensional video communication terminal, a 2D video communication terminal and a packet network. The 3D video communication method is processed in a two-way and three dimensional video communication, and it includes: shooting and acquiring video data; acquiring the depth and/or parallax information of short object from the video data; encoding the video data and the depth and/or parallax information; packing the encoded data into the packets according with the Real-time Transfer protocol; and transmitting the packets via the packet network. The two-way communication of the real-time remote video streams is realized. | 09-23-2010 |
20100259624 | METHOD AND APPARATUS FOR CALIBRATING VIDEO CAMERA - A method for calibrating the video camera includes: obtaining the internal and external parameters of the video camera according to a reference template; recording data of a reference object in the scene; obtaining images of the reference object from at least two perspectives; and obtaining the internal and external parameters of the video camera according to the recorded data of the reference object. An apparatus for calibrating the video camera includes: a preliminary calibration unit, configured to obtain the internal and external parameters of the video camera according to a reference template, and record the data of a reference object in the scene; a recalibration unit, configured to obtain images of the reference object from at least two perspectives, and obtain the internal and external parameters of the video camera according to the recorded data of the reference object. The invention is applicable to various scenes and features simple operations. | 10-14-2010 |
20100260486 | Apparatus, System and Method for Recording a Multi-View Video and Processing Pictures, and Decoding Method - An apparatus, a system, and a method for recording a multi-view video and processing pictures, and a decoding method are disclosed. The apparatus for recording a multi-view video and processing pictures includes a video recording unit, a collecting unit, a selecting unit, and an encoding unit, which are connected in sequence. The video recording unit is configured to record a video including recording a multi-view video, and output 3D video data. The collecting unit is configured to collect 3D video data output by the video recording unit. The selecting unit is configured to select at least one channel of data among the 3D video data. The encoding unit is configured to encode data including encoding the 3D video data selected by the selecting unit. | 10-14-2010 |
20100315512 | Method and System for Processing Images - A method for processing images includes: obtaining video images or capturing a series of images in real time; detecting difference between two adjacent images, and reserving one of the images when the difference is less than a preset threshold; detecting feature information of the obtained images; and performing definition-related treatment for the images detected as having the feature information, comparing definition of each image with a preset definition criterion, and reserving clear images. | 12-16-2010 |
20100329543 | METHOD AND SYSTEM FOR RECTIFYING IMAGES - The present invention relates to a method and a system for rectifying images. An original stereo image pair is obtained, and the epipolar lines corresponding to the original stereo image pair are parallelized to obtain a first transformed stereo image pair. Epipolar lines corresponding to the first transformed stereo image pair are collinearized to obtain a second transformed stereo image pair. The present invention parallelizes and collinearizes the epipolar lines corresponding to the stereo image pair after the images are rectified. | 12-30-2010 |
20110069139 | Method, Apparatus, and System for 3D Video Communication - A three-dimensional (3D) video communication method includes receiving video information of at least two session parties, wherein the video information of at least one session party is 3D video information. The video information received from the at least two session parties is processed according to state information of the at least two session parties and display capabilities of a terminal. | 03-24-2011 |
20110090311 | VIDEO COMMUNICATION METHOD, DEVICE, AND SYSTEM - A video communication method, device, and system are provided, which relate to the filed of video communications, so as to solve problems that currently scenes of two parties of communication need special arrangement to improve sense of reality and scene contents cannot be displayed in a 3D video mode. Therefore, scenes of two parties of communication do not need special arrangement to improve the sense of reality of users, and the scene contents can be displayed in a 3D video mode. The video communication method, device, and system are applicable to video communication such as common video chat, video telephony, and video conference. | 04-21-2011 |
20110096136 | TELEPRESENCE SYSTEM, TELEPRESENCE METHOD, AND VIDEO COLLECTION DEVICE - A telepresence system, a telepresence method, and a video collection device are disclosed. The telepresence system includes a video collection device, a video display device, an audio collection device, an audio player, and an audio and video communication device. The audio and video communication device transmits videos collected by the video collection device on a local end and audios collected by the audio collection device on the local end to a remote end through a network; the video display device and the audio player on the remote end play the images and audios respectively; and the video collection device is a panoramic camera. The technical solution under the present invention overcomes the poor effect of panoramic presence in the existing telepresence system, and improves the telepresence system in terms of depth presence, seamless display and eye contact. | 04-28-2011 |
20110149033 | CODE STREAM CONVERSION SYSTEM AND METHOD, CODE STREAM IDENTIFYING UNIT AND SOLUTION DETERMINING UNIT - A code stream conversion system and method, a code stream identifying unit and a solution determining unit are provided. The code stream conversion method includes: receiving an original code stream format obtained by parsing an original code stream; and determining a transcoding solution according to a target code stream format and the original code stream format, and using the original code stream format to decode the original code stream and using the target code stream format to encode a decoded code stream according to the transcoding solution, thus completing code stream conversion, and obtaining a target code stream corresponding to the target code stream format. Through the code stream conversion system and method, the original code stream is parsed and the transcoding solution is determined, thus achieving mutual conversion between a three-dimensional video code stream and a planar video code stream. | 06-23-2011 |
20110150101 | 3D VIDEO COMMUNICATION METHOD, SENDING DEVICE AND SYSTEM, IMAGE RECONSTRUCTION METHOD AND SYSTEM - The present invention relates to a 3-dimensional (3D) video communication method, a 3D video sending device, a 3D video communication system, an image reconstruction method, and an image reconstruction system. The 3D video communication method includes: obtaining video image data of a scene collected by image collecting apparatuses, where the video image data includes at least one depth image and at least two color images; and encoding the video image data and sending the encoded video image data. The system includes a sending device and a receiving device. The sending device obtains at least one depth image and at least two color images of the scene through the image collecting apparatuses, the obtained depth images are accurate and reliable, and the collection of the video images is highly real-time. At the time of reconstructing the images at the viewpoints, the receiving device can repair the reconstructed images by using the obtained color images, thus improving the effect of reconstructed images and making the reconstructed images highly practical and real-time. | 06-23-2011 |
20110158509 | IMAGE STITCHING METHOD AND APPARATUS - The present invention relates to an image processing technology, and discloses an image stitching method and apparatus to solve the problem of severe ghosting of an image stitched in the prior art. In the embodiments of the present invention, the overlap region of two images is found, a depth image of the overlap region is obtained, and the two images are stitched together according to the depth image. In the stitching process, the 3-dimensional information of the images is obtained by using the depth image to deghost the image. The method and apparatus under the present invention are applicable to multi-scene videoconferences and the occasions of making wide-view images or videos. | 06-30-2011 |
20110170802 | Image Scaling Method and Apparatus - The present invention relates to image processing technologies, and discloses an image scaling method and apparatus to reduce distortion of a scaled image. The image scaling method includes: determining a distribution direction of main objects in a source image; and scaling the source image to a target image through a nonlinear scaling method according to the distribution direction of the main objects in the source image, where the nonlinear scaling method employs a scaling direction vertical to the distribution direction of the main objects in the source image. The embodiments of the present invention are primarily applicable to the image scaling field. | 07-14-2011 |
20110316963 | METHOD AND DEVICE FOR GENERATING 3D PANORAMIC VIDEO STREAMS, AND VIDEOCONFERENCE METHOD AND DEVICE - A method and a device for generating 3-dimensional (3D) panoramic video streams, a videoconference method, and a videoconference device are disclosed. The method includes: obtaining depth information of at least two video images; obtaining image data in multiple depth positions from a corresponding video image according to the depth information of each video image; stitching data of the video images according to the obtained image data in multiple depth positions, and generating 3D panoramic video streams. The technical solution of the present invention provides users with high-resolution 3D panoramic seamless telepresence conference video images based on different display modes of different display devices. | 12-29-2011 |
20120033030 | REMOTE PRESENTING SYSTEM, DEVICE, AND METHOD - A remote presenting system, includes: a plurality of displays, configured to display a remote image; an audio output apparatus, configured to output remote audio information; a multimedia communication terminal, configured to process and control audio/video information obtained by a local end and audio/video information sent by a remote end; a plurality of video cameras, configured to shoot a local video image and send the shot video image to the multimedia communication terminal to be processed; an audio collection apparatus, configured to collect local audio information, and send the collected audio information to the multimedia communication terminal; and a plurality of user locations, corresponding to the plurality of video cameras respectively, and respectively being in an approximately perpendicular relationship with optic axes of camera lenses of the plurality of video cameras. | 02-09-2012 |
20120045147 | IMAGE CONVERSION METHOD, CONVERSION DEVICE, AND DISPLAY SYSTEM - An image conversion method, a conversion device, and a display system are provided in the embodiments of the present invention. The image conversion method includes: performing word area detection on an image to acquire a detected word area; and performing conversion processing on the image according to the word area to acquire a converted image that has an aspect ratio different from that of an unconverted image. The conversion device includes: a detection unit, configured to perform word area detection on an image to acquire a detected word area; and a conversion unit, configured to perform conversion processing on the image according to the word area to acquire a converted image that has an aspect ratio different from that of an unconverted image. In this way, an important content area of the image may be retained and clearly displayed. | 02-23-2012 |
20120120185 | VIDEO COMMUNICATION METHOD, APPARATUS, AND SYSTEM - The present invention relates to the communications field and discloses a video communication method, apparatus, and system, which are invented to solve the problem that the prior art does not achieve consistent eye-to-eye video communication in a horizontal direction. The technical solutions of the present invention includes: obtaining video images of a participant from more than two different horizontal shooting angles, where a range of viewing angles of the participant is between the more than two different horizontal shooting angles; and sending the video images of the participant to a video communication remote end. The embodiments of the present invention may be applied in the video communication field. | 05-17-2012 |
20120169829 | METHOD AND APPARATUS FOR PROCESSING VIDEO IMAGE DATA AND VIDEOCONFERENCING SYSTEM AND VIDEOCONFERENCING TERMINAL - A method and an apparatus for processing video image data are disclosed in the embodiments of the present invention. The method includes: obtaining multiple channels of correlative video image data and correlative information; combining the multiple channels of correlative video image data into a single channel of panoramic video image data by using the correlative information; and after recombining the panoramic video image data into multiple channels of video image data satisfying a display requirement of multiple display devices, respectively sending each channel of recombined video image data to each display device for display. Therefore, an overlapping phenomenon existing in images shot by a camera may be allowed, so that requirements on a location where a camera is placed and a distance between a user and a camera set are lowered. | 07-05-2012 |
20120169833 | IMAGE PROCESSING METHOD AND DEVICE - Embodiments of the present invention provide an image processing method and device, relating to the field of communications technology. The method includes: receiving at least two channels of images transmitted from a remote conference site; if there is a blind area in splicing of the at least two channels of images, comparing the width of the blind area with the sum of the widths of a left border and a right border of a display apparatus in a local conference site; processing the at least two channels of images separately according to a comparison result; outputting the at least two channels of processed images separately to the display apparatuses in the local conference site for displaying. In the embodiments of the present invention, the optimal image display effect may be achieved and the user experience in a telepresence video conference may be improved. | 07-05-2012 |
20120287222 | VIDEO COMMUNICATION METHOD, DEVICE AND SYSTEM - In the field of communication, embodiments of the present invention provide a video communication method, device and system. The technical solutions provided by the present invention include: at least two local video cameras, configured to shoot at least two channels of local video images; an apparatus for local shooting, stitching, and fusing, configured to fuse the at least two channels of local video images, generate a panoramic video image, encode the panoramic video image into a video code stream, and transmit the video code stream to a video communication site at a remote end; a local display fusing apparatus, configured to obtain at least two channels of video data by decoding a video code stream received from the remote end, fuse the at least two channels of video data, and output the fused video data to local display apparatuses for display. | 11-15-2012 |
20130021429 | Method, Apparatus, and System for 3D Video Communication - A three-dimensional (3D) video communication method includes receiving video information of at least two session parties, wherein the video information of at least one session party is 3D video information. The video information received from the at least two session parties is processed according to state information of the at least two session parties and display capabilities of a terminal. | 01-24-2013 |
20130021437 | Apparatus, System and Method for Recording a Multi-View Video and Processing Pictures, and Decoding Method - An apparatus, a system, and a method for recording a multi-view video and processing images, and a decoding method are disclosed. The apparatus for recording a multi-view video and processing images includes a video recording unit, a collecting unit, a selecting unit, and an encoding unit, which are connected in sequence. The video recording unit is configured to record a video including recording a multi-view video, and output 3D video data. The collecting unit is configured to collect 3D video data output by the video recording unit. The selecting unit is configured to select at least one channel of data among the 3D video data. The encoding unit is configured to encode data including encoding the 3D video data selected by the selecting unit. | 01-24-2013 |
20130100240 | TELEPRESENCE SYSTEM, TELEPRESENCE METHOD, AND VIDEO COLLECTION DEVICE - A telepresence system, a telepresence method, and a video collection device are disclosed. The telepresence system includes a video collection device, a video display device, an audio collection device, an audio player, and an audio and video communication device. The audio and video communication device transmits videos collected by the video collection device on a local end and audios collected by the audio collection device on the local end to a remote end through a network; the video display device and the audio player on the remote end play the images and audios respectively; and the video collection device is a panoramic camera. The technical solution under the present invention overcomes the poor effect of panoramic presence in the existing telepresence system, and improves the telepresence system in terms of depth presence, seamless display and eye contact. | 04-25-2013 |
20130113876 | Method and Device for Multi-Camera Image Correction - Embodiments of the present invention provide a method and a device for multi-camera image correction. The method for multi-camera image correction includes: acquiring information of independent images that are captured by each camera and have no overlap area or have an overlap area smaller than a threshold; acquiring, according to information of each independent image, an image correction parameter that corresponds to each camera and allows adjacent independent images to be corrected into a contiguous image; and performing, according to the image correction parameter, correction processing on video data of a camera that corresponds to the image correction parameter. In the embodiments of the present invention, maintenance manpower is saved, adjustment efficiency is improved, and remote maintenance may be performed in the case of no overlap area or of a small overlap area. In addition, images are corrected in a data processing manner, which efficiently ensures precision of image correction. | 05-09-2013 |
20130300820 | REMOTE PRESENTING SYSTEM, DEVICE, AND METHOD - A remote presenting system, includes: a plurality of displays, configured to display a remote image; an audio output apparatus, configured to output remote audio information; a multimedia communication terminal, configured to process and control audio/video information obtained by a local end and audio/video information sent by a remote end; a plurality of video cameras, configured to shoot a local video image and send the shot video image to the multimedia communication terminal to be processed; an audio collection apparatus, configured to collect local audio information, and send the collected audio information to the multimedia communication terminal; and a plurality of user locations, corresponding to the plurality of video cameras respectively, and respectively being in an approximately perpendicular relationship with optic axes of camera lenses of the plurality of video cameras. | 11-14-2013 |
20140111602 | Method, Device and System for Adjusting Image Display - The present invention discloses a method, a device, and a system for adjusting image display and belongs to the field of videoconferencing technologies. The method includes: receiving an image of a second conference site and an environmental parameter of the second conference site that are sent by a presence terminal of the second conference site; converting the image of the second conference site according to a pre-stored environmental parameter of a first conference site and the environmental parameter of the second conference site to obtain an image for display, wherein a conference site environmental parameter of the image for display is consistent with the environmental parameter of the first conference site; and displaying the image for display. | 04-24-2014 |
20140184730 | Video Presence Method and System - A video presence method and system. The method includes: receiving a multi-viewpoint three-dimensional video signal from a remote end; determining multiple viewpoint image streams in the multi-viewpoint three-dimensional video signal; and alternately displaying the multiple viewpoint image streams in sequence in a viewing area, where a distance between two neighboring viewpoints in the multiple viewpoint image streams displayed in the viewing area is a pupillary distance. By adopting the present invention, remote three-dimensional video presence may be implemented. | 07-03-2014 |
20140184733 | METHOD AND TERMINAL FOR TRANSMITTING INFORMATION - The present invention discloses a method and a terminal for transmitting information. The method includes: determining shooting width information of a first system; determining an image adjustment parameter according to the shooting width information, where the image adjustment parameter is used to indicate the shooting width information in a form of spatial information; sending the image adjustment parameter to a second system, so that the second system adjusts a received or captured image according to the image adjustment parameter. According to the method and the terminal for transmitting information in embodiments of the present invention, an image adjustment parameter indicating shooting width information in a form of spatial information is sent to a second system, so that the second system can adjust an image according to the image adjustment parameter, thereby effectively obtaining and transmitting information used for image adjustment, improving user experience, and enhancing product competitiveness. | 07-03-2014 |