Low Complexity Implementation Of Intra String Copy In Avs3

Screen content coding has attracted extensive interests in both industry and academia with the popularity of screen content applications. In this paper, a low complexity implementation of intra string copy mode is proposed for screen content coding. The proposed intra string copy mode has been recently included in the latest AVS3 video coding standard. This paper presents the design of the proposed intra string copy mode, where the main features designed for hardware friendly implementation are introduced and discussed. Simulation results show that the proposed intra string copy significantly improves the compression performance for screen content materials, while the implementation complexity is maintained at an acceptable level.