PRISM: a "reversed" multimedia coding paradigm
In this work, we present PRISM (Power-efficient, Robust, hIgh-compression, Syndrome-based Multimedia coding), a video coding paradigm based on the principles of coding with side information (which, unlike the classical WynerZiv coding scenario [1], is characterized by an ambiguous state of nature characterizing the side-information [2]). PRISM’s architectural goals are to inherit the low encoding complexity and robustness of motion-JPEG style intra-frame video codecs while approaching the high compression efficiency of full-motion interframe video codecs. The PRISM paradigm roughly swaps the encoder-decoder complexity with respect to conventional video coding architectures through the novel concept of moving the motion compensation task from the encoder to the decoder. These traits make PRISM wellmatched to uplink-rich media applications involving wireless video and security cameras, multimedia-equipped phones and PDA’s etc.