Video sequence quantizer for very low bit-rate moving picture coding

Akio Yamada; Mutsumi Ohta; Takao Nishitani

doi:10.1117/12.186003

16 September 1994 Video sequence quantizer for very low bit-rate moving picture coding

Akio Yamada, Mutsumi Ohta, Takao Nishitani

Proceedings Volume 2308, Visual Communications and Image Processing '94; (1994) https://doi.org/10.1117/12.186003
Event: Visual Communications and Image Processing '94, 1994, Chicago, IL, United States

Abstract

This paper describes a novel intelligent low bit rate coding technique for motion pictures, named Video Sequence Quantizer (VSQ). VSQ is one of the semantic coding. The concept is very simple. The encoder extracts motion information about target objects and transmit it as a few control parameters. The decoder has several video sequences in its database and outputs them selectively according to the transmitted parameters. It can reproduce natural movements with a simple operation compared with another semantic coding scheme called computer graphics model-based coding. We make clear the concept of VSQ and also apply it to a very low bit rate TV phone system. Computer simulation of TV phone has been done using twelve video sequences. It can naturally reproduce the speaker's movements by 80 bit/sec. VSQ is a very simple but basic concept for video coding. It will be also useful for mobile and multimedia communications.

Citation Download Citation

Akio Yamada, Mutsumi Ohta, and Takao Nishitani "Video sequence quantizer for very low bit-rate moving picture coding", Proc. SPIE 2308, Visual Communications and Image Processing '94, (16 September 1994); https://doi.org/10.1117/12.186003

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