Fast mode decision algorithm for H.264/AVC using edge characteristics of residue images

  • Authors:

  • Amrita Ganguly;Anil Mahanta

  • Affiliations:

  • Indian Institute of Technology Guwahati, Guwahati, Assam, India;Indian Institute of Technology Guwahati, Guwahati, Assam, India

  • Venue:
  • Proceedings of the Seventh Indian Conference on Computer Vision, Graphics and Image Processing
  • Year:
  • 2010

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Abstract

Video compression algorithms require decision making regarding the selection of different coding modes. Of all the encoding elements in H.264, inter prediction is computationally most intensive and thus adds to the computational burden for the encoder. In this paper, we propose a fast inter prediction algorithm for JVT video coding standard H.264/AVC. The fast prediction algorithm is based on the edge information obtained by calculating the edge histogram parameters of the frame difference residual image. The inclusion of different modes for motion estimation is based on the direction information obtained from the edge histogram parameters. The proposed method reduces the computational complexity and time considerably by upto 63% compared to the JVT benchmark JM12.4 while maintaining similar PSNR and bit rate. Experimental results for various test sequences at different resolutions are presented to show the effectiveness of the proposed method.