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Fast Mode Decision Algorithm for Intra-frames Coding in HEVC

  

  1. College of Computer Science, Beijing University of Technology, Beijing 100124, China
  • Received:2014-03-19 Online:2014-05-28 Published:2014-05-30

Abstract: We propose an algorithm for High Efficiency Video Coding (HEVC) standard based on Rough Mode Decision (RMD) process to decrease the coding complexity. In this algorithm, we make full use of the similarity of the candidate mode lists from parent prediction unit and child prediction unit and merge the prediction modes into several groups to further reduce the number of prediction modes which may be checked by encoder in Rate Distortion Optimization (RDO) process. Experimental result shows nearly 22% computational saving with 0.5% coding loss.

Key words: multimedia technology, digital image, HEVC, intra-frames prediction, fast mode decision

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