Low bit rate teleconferencing video signal data compression

C. Manikopoulos, H. Sun, G. Antoniou

Research output: Contribution to journalArticle

Abstract

A new high compression algorithm of teleconferencing image sequence data is proposed. It is based on vector quantization (VQ) operating in the spatial domain and it is structured as a combination of an intraframe finite state (FS) algorithm with state label entropy encoding, followed by an interframe one, operating on a bundle of frames. The intraframe algorithm encodes the head frame of the bundle; the interframe algorithm follows, operating on the remaining frames. Then, the encoding process restarts with a new bundle of frames. Simulation experiments have been carried out for a videoconference image sequence, consisting of 20 frames of 112x96 pixels, with 25% average block motion. The representation vectors were of 2 x 2 x 4 resolution. The results obtained have shown that for PSNR = 32 db the required bit rate is 0.08 to 0.10 bits/pixel.

Original languageEnglish
Pages (from-to)504-513
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume1199
DOIs
StatePublished - 1 Nov 1989

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teleconferencing
Teleconferencing
video signals
data compression
Data compression
Data Compression
bundles
Bundle
Image Sequence
Head frames
Pixels
coding
Encoding
Pixel
pixels
Vector quantization
vector quantization
Vector Quantization
Restart
Labels

Cite this

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Low bit rate teleconferencing video signal data compression. / Manikopoulos, C.; Sun, H.; Antoniou, G.

In: Proceedings of SPIE - The International Society for Optical Engineering, Vol. 1199, 01.11.1989, p. 504-513.

Research output: Contribution to journalArticle

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