A balanced vector-quantization processor eliminating redundant calculation for real-time motion picture compression

Masahiro Konda, Takahiro Nakayama, Naoto Miyamoto, Tadahiro Ohmi

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

3 Citations (Scopus)

Abstract

A balanced vector-quantization (VQ) processor has been developed for real-time encoding of motion pictures (640x480 pixels) by using FPGA. The VQ processor employs a search algorithm for VQ encoding to reduce computational complexity and hardware volume. And this VQ processor employs a new architecture of distance calculation unit. By adopting the pipeline composition of each element, the number of distance calculation units could be reduced compared with fully parallel hardware architecture. Besides, in order to reduce memory size of codebook, 2048 template vectors consist of 512 basic template vectors, and the distance calculation units using pipeline composition are arranged in parallel for rotated template vectors. As a result, real-time VQ processor on FPGA is balanced architecture compared with the fully parallel architecture.

Original languageEnglish
Title of host publicationICFPT 2007 - International Conference on Field Programmable Technology
Pages325-328
Number of pages4
DOIs
Publication statusPublished - 2007 Dec 1
EventInternational Conference on Field Programmable Technology, ICFPT 2007 - Kitakyushu, Japan
Duration: 2007 Dec 122007 Dec 14

Publication series

NameICFPT 2007 - International Conference on Field Programmable Technology

Other

OtherInternational Conference on Field Programmable Technology, ICFPT 2007
CountryJapan
CityKitakyushu
Period07/12/1207/12/14

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

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