Y. C. Chang and D. G. Messerschmitt, "Delay cognizant video coding," Proceedings of International Conference on Networking and Multimedia, Kaohsiung, Taiwan, pp. 110-117, 1996. 24  Home/Search   Document Not in Database   Summary   Related Articles   Check

....unequal error protection to protect motion information for transmission of MPEG 4 video over wireless channels. 133 There is considerably less work in the area with separating a video into parts with di#erent delay sensitivities. One notable exception is the delay cognizant video compression of [17], where the generation of video sub streams of di#erent delay sensitivities is enabled by the use of asynchronous frame update, i.e. by rendering di#erent parts of a given source video frame at di#erent times according to perceived delay sensitivity. Unfortunately, the techniques of [17] cannot ....

....of [17] where the generation of video sub streams of di#erent delay sensitivities is enabled by the use of asynchronous frame update, i.e. by rendering di#erent parts of a given source video frame at di#erent times according to perceived delay sensitivity. Unfortunately, the techniques of [17] cannot be easily applied to MPEG video, where each video frame needs to be rendered at fixed given times. In terms of MPEG, a scheme is suggested in [111] that reduces variation between displayed frames when the decoder is incapable of decoding at full frame rate. Thus, instead of decoding and ....

Y. Chang. Delay Cognizant Video Coding. PhD thesis, University of California, Berkeley, 1998.

....unequal error protection to protect motion information for transmission of MPEG 4 video over wireless channels. There is considerably less work in the area with separating a video into parts with di erent delay sensitivities. One notable exception is the delay cognizant video compression of [9], where the generation of video sub streams of di erent delay sensitivities is enabled by the use of asynchronous frame update, i.e. by rendering di erent parts of a given source video frame at di erent times according to perceived delay sensitivity. Unfortunately, the techniques of [9] cannot be ....

....of [9] where the generation of video sub streams of di erent delay sensitivities is enabled by the use of asynchronous frame update, i.e. by rendering di erent parts of a given source video frame at di erent times according to perceived delay sensitivity. Unfortunately, the techniques of [9] cannot be easily applied to MPEG video, where each video frame needs to be rendered at xed given times. 4 Delay Spread of MPEG Video While MPEG does not make special provisions for transport over delay di erentiated networks, limited delay separation is achievable by exploiting the difference ....

Y. Chang, Delay Cognizant Video Coding, Ph.D. thesis, University of California, Berkeley, 1998.

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Y. C. Chang and D. G. Messerschmitt, "Delay cognizant video coding," Proceedings of International Conference on Networking and Multimedia, Kaohsiung, Taiwan, pp. 110-117, 1996. 24

....about the kinds of video information that has the most impact when delayed. It is an important issue in need of more research. 4. 2 Prior work In our earlier work, a number of different segmentation criteria were explored, but they often failed to achieve an acceptable compression ratio [16][17]. One unreported approach we tried was pixel based segmentation by conditional replenishment, in which the basic segmentation units are pixels. In segmenting head and shoulder scenes, less than 5 of the total pixels are carried by the low delay flow. The delay offset can be as great as 330 msec ....

Y. C. Chang and D. G. Messerschmitt, "Delay cognizant video coding," Proceedings of International Conference on Networking and Multimedia, Kaohsiung, Taiwan, pp. 110-117, 1996.

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