Patent application number | Description | Published |
20080270888 | Method For Generating Metadata For Symbolic Music of Traditional Music, and Apparatus For Coding/Decoding Multimedia Data Using the Same - Provided is a method for generating metadata for symbolic music and a music restoring apparatus employing the same, and more particularly, a method for generating metadata for ornaments existing in the Korean traditional music and an apparatus for restoring multimedia including the same. A method for generating metadata for music, which is suggested in the present invention, includes the steps of: a) generating an extensible Markup Language (XML) notation for ornaments; b) generating a complete form of metadata including the XML notation; and c) generating metadata for entire music by using the complete form of metadata and the XML notation. | 10-30-2008 |
20090024644 | Extended Multimedia File Structure and Multimedia File Producting Method and Multimedia File Executing Method - Provided are an extended multimedia file structure, a multimedia file producing method, and a multimedia file executing method. The extended multimedia file structure includes: a metadata section including a media initial object descriptor (IOD) field and at least one track pointer; and a media data section including at least one media block indicated by the track pointer, wherein the at least one track pointer indicates a detail media resource contained in an embedded multimedia file or an external multimedia file. | 01-22-2009 |
20090031021 | TRANSMITTING/RECEIVING METHOD OF SVC FILE AND APPARATUS THEREOF - In the conventional content, a minimum access unit of the random access information is one frame unit. In the case of SVC video content, one frame consists of a plurality of scalable layers. The SVC data can be used for each salable layer only when the data is accessible for each scalable layer. The present invention provides a method and apparatus for transmitting and receiving an SVC file for each scalable layer wherein the SVC file can be accessed for each scalable layer by allowing metadata to contain a layer descriptor in a network abstraction layer unit (NALU) or in a byte unit. | 01-29-2009 |
20090196343 | CHANNEL CAPACITY ESTIMATION AND PREDICTION METHOD AND APPARATUS FOR RATE ADAPTIVE WIRELESS VIDEO - There is provided a channel capacity estimation method for adaptive video transmission, the method including: estimating a Bit Error Rate (BER) for a received video packet; and estimating channel capacity by using the estimated BER. | 08-06-2009 |
20100171882 | METHOD FOR TUNING CODING RATE AND APPLYING UNEQUAL ERROR PROTECTION FOR ADAPTIVE VIDEO TRANSMISSION, AND VIDEO TRANSMISSION/RECEPTION APPARATUS USING THE METHOD - Provided are a method of tuning a coding rate and applying an unequal error protection for an adaptive video transmission, and a video transmission/reception apparatus using the method. The video transmission apparatus may include: a coding rate tuner to predict, as a channel capacity of a subsequent channel interval, an estimated channel capacity value fed back from the video reception apparatus, and to tune video and channel coding rates within the predicted channel capacity; a video encoder to perform video encoding of video frames at the tuned video coding rate, and to generate a video packet; and a forward error correction (FEC) encoder to apply the unequal error protection based on a length of the video packet and a type of the video frames included in the video packet, and to perform channel encoding of the video packet at the tuned channel coding rate to generate a bitstream. | 07-08-2010 |
20120011556 | METHOD AND APPARATUS FOR PROVIDING BROADCASTING SERVICE - A method for providing a broadcasting service containing contents includes: generating contents representations metadata for describing possible representations of the contents; and outputting the contents representations metadata, wherein the contents representations metadata includes one or more contents representations description elements which describe a metadata tool defined by a standard specification. | 01-12-2012 |
20120092440 | METHOD AND APPARATUS FOR VIDEO COMMUNICATION - A video communication apparatus in which eye contact can be made with an opposite party of a conversation is provided. The video communication apparatus includes: a monitor unit for video communication; and a camera unit for capturing an image of a user, wherein the monitor unit repeats mode switching between a video mode and a transparent mode according to a specific period, and wherein the camera unit is located behind the monitor unit and captures the image of the user by using a screen of the monitor unit. Accordingly, eye contact can be made with the opposite party when users who participate in video communication talk to each other while seeing communication images. | 04-19-2012 |
20130128057 | GEOMETRIC CORRECTION APPARATUS AND METHOD BASED ON RECURSIVE BEZIER PATCH SUB-DIVISION CROSS-REFERENCE TO RELATED APPLICATION - Provided is a geometric correction apparatus and method based on a recursive Bezier patch sub-division. A geometric correction method may include: receiving, from a camera, a first image that is obtained by photographing a black screen that is projected by a projector onto a projection surface; receiving, from the camera, a second image that is obtained by photographing a predetermined pattern that is projected by the projector onto the projection screen; generating a third image by subtracting the first image from the second image; and performing geometric correction with respect to the predetermined pattern to correct a distortion between the predetermined pattern and the third image. | 05-23-2013 |
20130194292 | APPARATUS AND METHOD FOR CORRECTING COLOR OF IMAGE PROJECTION DEVICE - An apparatus and a method for correcting colors of an image projection device are provided. The method includes: acquiring a photographed image by photographing a sample image projected on projection surface; generating input-output color information for n regions, based on color values of a block in the sample image and corresponding color values of the block in the photographed image; selecting one of the n regions of photographed images as a reference region; generating look-up tables (LUTs) for non-reference regions, based on the reference region and the input and output color information; and correcting colors of input images to be projected by the image projection device using the look-up tables, thereby minimizing color difference of the input images on the projection surface for both intra and inter projection device color correction while simplifying the correction procedure. | 08-01-2013 |
20130250045 | APPARATUS AND METHOD FOR GENERATING AND CONSUMING THREE-DIMENSIONAL (3D) DATA FORMAT TO GENERATE REALISTIC PANORAMIC IMAGE - An apparatus and method for generating and consuming a three-dimensional (3D) data format to generate a realistic panoramic image are provided. The apparatus may include an image preprocessing unit to search for a matching point between images captured by a plurality of cameras, and to extract, as image information, at least one of a depth value, a texture value and object division information from each of the captured images, an image information structuring unit to structure 3D data to use the extracted image information to generate a realistic image, a 3D data format storage unit to store format information of the to structured 3D data in a database (DB), realistic image generating unit to generate a realistic panoramic image using the stored format information of the 3D data, and a realistic image rendering unit to perform rendering on the generated realistic panoramic image. | 09-26-2013 |
20130250975 | METHOD AND DEVICE FOR PACKETIZING A VIDEO STREAM - A digital broadcasting system provides a method and device for packetizing a video stream. The packetizing device includes: a video frame check block for classifying an encoded video stream according to the frame type; a header setting block for setting a packet header for each of the classified frames; and a packetizing block for packetizing a video frame on the basis of the set packet header. The frame type may be one of an intra-coded (I) frame, a predicted (P) frame, and a bi-predictive (B) frame. Since a digital broadcasting stream is efficiently packetized, overhead due to a typical synchronization packet may be reduced, and accordingly, bandwidth may be efficiently used. | 09-26-2013 |
20140007175 | METHOD AND APPARATUS FOR ESTIMATING WIRELESS CHANNEL STATUS USING ADDITIONAL INFORMATION, AND METHOD FOR ADJUSTING CODING RATE IN WIRELESS NETWORK USING METHOD AND APPARATUS | 01-02-2014 |
20140071228 | COLOR CORRECTION APPARATUS FOR PANORAMA VIDEO STITCHING AND METHOD FOR SELECTING REFERENCE IMAGE USING THE SAME - Disclosed are a color correction apparatus for panorama video stitching and a method of selecting a reference image using the same. A method of selecting a reference image for color correction when stitching panorama video based on input images includes selecting an optimum reference image candidate from the input images based on standard deviations for overlapping regions between the input images, performing color correction on the input images based on the optimum reference image candidate, and validating the optimum reference image candidate based on the color-corrected input images. | 03-13-2014 |
20150029306 | METHOD AND APPARATUS FOR STABILIZING PANORAMA VIDEO CAPTURED BASED ON MULTI-CAMERA PLATFORM - The present invention proposes a method and apparatus for correcting a motion of panorama video captured by a plurality of cameras. The method of the present invention includes performing global motion estimation for estimating smooth motion trajectories from the panorama video, performing global motion correction for correcting a motion in each frame of the estimated smooth motion trajectories, performing local motion correction for correcting a motion of each of the plurality of cameras for the results in which the motions have been corrected, and performing warping on the results on which the local motion correction has been performed. | 01-29-2015 |