Energy-efficient memory hierarchy for motion and disparity estimation in multiview video coding

Felipe Sampaio, Bruno Zatt, Muhammad Shafique, Luciano Agostini, Sergio Bampi, Jörg Henkel

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

Abstract

This work presents an energy-efficient memory hierarchy for Motion and Disparity Estimation on Multiview Video Coding employing a Reference Frames-Centered Data Reuse (RCDR) scheme. In RCDR the reference search window becomes the center of the motion/disparity estimation processing flow and calls for processing all blocks requesting its data. By doing so, RCDR avoids multiple search window retransmissions leading to reduced number of external memory accesses, thus memory energy reduction. To deal with out-of-order processing and further reduce external memory traffic, a statistics-based partial results compressor is developed. The on-chip video memory energy is reduced by employing a statistical power gating scheme and candidate blocks reordering. Experimental results show that our reference-centered memory hierarchy outperforms the state-of-the-art [7][13] by providing reduction of up to 71% for external memory energy, 88% on-chip memory static energy, and 65% on-chip memory dynamic energy.

Original languageEnglish (US)
Title of host publicationProceedings - Design, Automation and Test in Europe, DATE 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages665-670
Number of pages6
ISBN (Print)9783981537000
DOIs
StatePublished - 2013
Event16th Design, Automation and Test in Europe Conference and Exhibition, DATE 2013 - Grenoble, France
Duration: Mar 18 2013Mar 22 2013

Publication series

NameProceedings -Design, Automation and Test in Europe, DATE
ISSN (Print)1530-1591

Other

Other16th Design, Automation and Test in Europe Conference and Exhibition, DATE 2013
CountryFrance
CityGrenoble
Period3/18/133/22/13

Keywords

  • 3D-Video
  • Application-Aware DPM
  • Disparity Estimation
  • Energy Efficiency
  • Low-Power Design
  • Memory Hierarchy
  • Motion Estimation
  • Multiview Video Coding
  • MVC
  • On-Chip Video Memory

ASJC Scopus subject areas

  • Engineering(all)

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