A Method For Evaluating The Efficiency Of Block Classification In Multiple Mode Video Compression

Tom Lookabaugh; Dan Klenke; Bowonkoon Chitprasert; Jonathan A. Zingman; Wen-hsiung Chen

doi:10.1117/12.970034

1 November 1989 A Method For Evaluating The Efficiency Of Block Classification In Multiple Mode Video Compression

Tom Lookabaugh, Dan Klenke, Bowonkoon Chitprasert, Jonathan A. Zingman, Wen-hsiung Chen

Proceedings Volume 1199, Visual Communications and Image Processing IV; (1989) https://doi.org/10.1117/12.970034
Event: 1989 Symposium on Visual Communications, Image Processing, and Intelligent Robotics Systems, 1989, Philadelphia, PA, United States

Abstract

Many contemporary video compression algorithms classify each block of image data into one of a small number of modes and then apply a coding technique determined by the mode. The design and optimization of this classifier is a central problem in designing the overall video compression algorithm. We derive a theoretical bound on performance of block classification for independently coded blocks by minimizing a Lagrangian functional of rate and distortion. This bound can be used to evaluate the efficiency of simple classification schemes. As an example, we analyzed a heuristically optimized classification scheme for a simple three mode video coding system and showed that its performance was within 5% of the Lagrangian minimization. We also demonstrate how our technique can be used to improve classification logic.

Citation Download Citation

Tom Lookabaugh, Dan Klenke, Bowonkoon Chitprasert, Jonathan A. Zingman, and Wen-hsiung Chen "A Method For Evaluating The Efficiency Of Block Classification In Multiple Mode Video Compression", Proc. SPIE 1199, Visual Communications and Image Processing IV, (1 November 1989); https://doi.org/10.1117/12.970034

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KEYWORDS

Logic

Distortion

Video compression

Classification systems

Image processing

Visual communications

Image classification

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