Method, apparatus, and system for enhancing robustness of predictive video codecs using a side-channel based on distributed source coding techniques

Abstract

A method, apparatus, and system for providing distributed source coding techniques that improve data coding performance, such as video data coding, when channel errors or losses occur. Errors in the reconstruction of the data is eliminated or reduced by sending extra information. Correlation between a predicted sequence and an original sequence can be used to design codebooks and find the cosets required to represent the original image. This information may be sent over another channel, or a secondary channel.

Description

[0001] Claiming Priority Based on 35 U.S.C. §119 [0002] This application for patent claims U.S. Provisional Application No. 60 / 576,193, filed June 1, 2004, entitled "METHOD, APPARATUS, AND SYSTEM FOR ENHANCING ROBUSTNESS OFPREDICTIVE VIDEO CODECS USING A SIDE-CHANNEL BASEDON DISTRIBUTED SOURCE CODING TECHNIQUES" priority, the provisional application is assigned to the assignee of the present application and is hereby incorporated by reference in its entirety. [0003] References to Co-Pending Patent Applications [0004] This patent application is related to the following co-pending U.S. Patent Application No. 10 / 396,982, the co-pending U.S. patent application assigned to the assignee of the present application and hereby incorporated by reference. technical field [0005] The present invention relates generally to multimedia over error-prone networks, and more particularly to video encoding and decoding techniques for use with multimedia over wireless networks. Backgro...

AI Technical Summary

Problems solved by technology

However, it may not be efficient to use ARQ or FEC schemes (or a combination of both), since delay constraints of video applications may preclude the use of these schemes

Also, FEC based schemes do not guarantee whether the data is received or not, the drift persists until the next intra is received (intra is used by the video encoder to break the prediction loop and thus stop the drift)

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