A color vector quantization based video coder

Zhu Li*, Aggelos K Katsaggelos

*Corresponding author for this work

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

Color vector quantization (VQ) has been an efficient still image compression scheme as well as a popular bitmap graphics format for display devices with limited color capability. In this paper we are proposing a color vector quantization-based video coder, exploiting the temporal stationary nature of color distribution among a group of pictures (GOP) over a short period. Color VQ is applied first to reduce the RGB image sequence into a single channel color index image. Motion estimation and compression is then performed in the index space, instead of the separate YCbCr channels. Initial results demonstrated that the proposed coder can provide good compression rates. By eliminating the need for an inverse DCT and color conversion, typical requirements in a JPEG/MPEG type of coders, the decoding is computationally very simple. This makes it suitable for certain applications like media playback, and visual communications with low-end mobile devices.

Original languageEnglish (US)
StatePublished - Jan 1 2002
EventInternational Conference on Image Processing (ICIP'02) - Rochester, NY, United States
Duration: Sep 22 2002Sep 25 2002

Other

OtherInternational Conference on Image Processing (ICIP'02)
CountryUnited States
CityRochester, NY
Period9/22/029/25/02

Fingerprint

Vector quantization
Color
Visual communication
Motion estimation
Image compression
Mobile devices
Decoding
Display devices

ASJC Scopus subject areas

  • Hardware and Architecture
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering

Cite this

Li, Z., & Katsaggelos, A. K. (2002). A color vector quantization based video coder. Paper presented at International Conference on Image Processing (ICIP'02), Rochester, NY, United States.
Li, Zhu ; Katsaggelos, Aggelos K. / A color vector quantization based video coder. Paper presented at International Conference on Image Processing (ICIP'02), Rochester, NY, United States.
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Li, Z & Katsaggelos, AK 2002, 'A color vector quantization based video coder' Paper presented at International Conference on Image Processing (ICIP'02), Rochester, NY, United States, 9/22/02 - 9/25/02, .

A color vector quantization based video coder. / Li, Zhu; Katsaggelos, Aggelos K.

2002. Paper presented at International Conference on Image Processing (ICIP'02), Rochester, NY, United States.

Research output: Contribution to conferencePaper

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Li Z, Katsaggelos AK. A color vector quantization based video coder. 2002. Paper presented at International Conference on Image Processing (ICIP'02), Rochester, NY, United States.