Synchronizing sparse coding dictionaries for use in communication sessions

Abstract

Techniques for generating synchronized dictionaries for sparse coding to facilitate coding of video content are presented. During a communication session, an encoder associated with a first terminal generates a dictionary that is synchronized with a corresponding dictionary maintained by a decoder associated with a second terminal. The decoder uses the dictionary to facilitate decoding video content, based on sparse coding, received from the encoder. During a subsequent communication session between the first terminal and a third terminal, the dictionary is made available to a decoder associated with the third terminal. The encoder associated with the first terminal and decoder associated with the third terminal signal each other to identify the dictionary as being common between the encoder and decoder, and this common dictionary is used for coding content communicated between the encoder and decoder. The encoder and decoder can update the dictionary based on the subsequent video session.