Distributed Video Coding: Bringing New Applications to Life
نویسندگان
چکیده
Distributed source coding (DSC) is a new coding paradigm based on two Information Theory results: Slepian-Wolf and Wyner-Ziv theorems. DSC theory relies on the coding of two or more dependent random sequences in an independent way, i.e. associating an independent encoder to each sequence. A single decoder is used to perform joint decoding of all encoded sequences exploiting the statistical dependencies between them. Based on the DSC independent encoding-joint decoding configuration, a new video coding paradigm, called distributed video coding (DVC), allows to shift complexity from the encoder to the decoder. Typically, this is difficult to achieve with current hybrid video coding where encoders are more complex and should enable a whole new set of applications. The major goals of this paper is to review the principles, advantages and recent developments in DVC and discuss the set of applications for which DVC seems to be wellsuited, typically when low-complexity or low-power consumption encoders are required.
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