Efficient macroblock ordering for chrominance planes in rich color image compression

Dae Young Hyun, Jun Hee Heu, Chang-Su Kim, Sang Uk Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A novel approach to adapt the macroblock (MB) coding order of chrominance planes is proposed to improve the compression performance of the H.264/AVC intra coder. The proposed algorithm first encodes the luminance plane of an image and then uses the luminance data to determine the MB coding order of the chrominance planes adaptively. The proposed algorithm consists of three steps. First, we estimate the similarities between neighboring chrominance MBs using the luminance gradients. Second, we assign a high priority to a chrominance MB, if it is similar to many neighboring MBs. Finally, we encode the chrominance MBs in the decreasing order of the priorities. Moreover, we develop efficient submodes, representing prediction directions, to exploit the correlations of the MBs along the adaptive scan order. Experimental results show that the proposed algorithm yields significantly better compression performance than H.264/AVC on both YUV 4:4:4 and RGB 4:4:4 images.

Original languageEnglish
Title of host publication2013 IEEE International Conference on Image Processing, ICIP 2013 - Proceedings
Pages1627-1630
Number of pages4
DOIs
Publication statusPublished - 2013
Event2013 20th IEEE International Conference on Image Processing, ICIP 2013 - Melbourne, VIC, Australia
Duration: 2013 Sep 152013 Sep 18

Publication series

Name2013 IEEE International Conference on Image Processing, ICIP 2013 - Proceedings

Other

Other2013 20th IEEE International Conference on Image Processing, ICIP 2013
CountryAustralia
CityMelbourne, VIC
Period13/9/1513/9/18

Keywords

  • Adaptive scan
  • Inter-plane coding
  • Interchannel correlation
  • Intra prediction
  • Macroblock order

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition

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