ABSTRACT

A video compression system consists of an encoder that converts uncompressed video sequences into a compact format suitable for transmission or storage, and a decoder that performs the opposite operations to facilitate video display. In distributed video coding (DVC), the prediction is generated at the decoder instead of at the encoder. Two DVC architectures can be considered the pioneers in the field, namely, the PRISM system developed at Berkeley and the system developed at Stanford. The side information plays a crucial role in the performance of any DVC system. Feedback-free DVC systems are definitely more practical, but on the other hand their compression performance is typically lower due to occasional underestimation or overestimation of the Wyner–Ziv rate. DVC can be used to jointly code video sequences captured from a single scene but from different viewpoints.