Region-of-interest based dynamical parameter allocation for H.264/AVC encoder

Minghui Wang*, Tianruo Zhang, Chen Liu, Satoshi Goto

*Corresponding author for this work

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

15 Citations (Scopus)


Since H.264 is a high performance coding standard in with high computational requirements, it is hard to implement on portable devices. According to the human visual system (HVS) research, human eyes can only focus on one area in a frame, which is called region-of-interest (ROI). This phenomenon gives a chance to code all macroblocks unequally. In this work, the ROI is detected using texture contrast and motion features. This detector uses a simple scheme to meet the low power requirement of portable application. After getting ROI, coding parameters, in terms of search ranges, and valid modes, are allocated in ROI and non-ROI respectively. This strategy reduces the coding complexity and keeps the visual quality. The ROI detector and the encoder are designed to be decoding-friendly and hardware-friendly.

Original languageEnglish
Title of host publication2009 Picture Coding Symposium, PCS 2009
Publication statusPublished - 2009
Event2009 Picture Coding Symposium, PCS 2009 - Chicago, IL
Duration: 2009 May 62009 May 8


Other2009 Picture Coding Symposium, PCS 2009
CityChicago, IL


  • Dynamical parameter allocation
  • H.264/AVC
  • Human visual system (HVS)
  • Region-of-interest (ROI)

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Computer Vision and Pattern Recognition
  • Software


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