Empirical Determination Of Processing Parameters For A Real Time Two-Dimensional Discrete Cosine Transform (2D-DCT) Video Bandwidth Compression System

W. Bernard Schaming; Oliver E. Bessette

doi:10.1117/12.959411

11 November 1980 Empirical Determination Of Processing Parameters For A Real Time Two-Dimensional Discrete Cosine Transform (2D-DCT) Video Bandwidth Compression System

W. Bernard Schaming, Oliver E. Bessette

Author Affiliations +

Proceedings Volume 0249, Advances in Image Transmission II; (1980) https://doi.org/10.1117/12.959411
Event: 24th Annual Technical Symposium, 1980, San Diego, United States

Abstract

An interactive process is described for fine tuning a specific algorithm for use in a real time video bandwidth compression system. Parameters for the algorithm are initially optimized using computer simulation, then implemented in hardware to observe performance. The next step is the modification of the parameters to improve the real time performance of the system. This paper describes some of the algorithm parameter choices that were made in the implementation of a two-dimensional discrete cosine transform processor for the Air Force Wright Aeronautical Laboratory. Examples are shown of alternate choices for DCT scaling strategies, filter functions, and bit assignment procedures. The impact of these parameter selections on the resulting imagery is included using both simulation and hardware outputs.

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W. Bernard Schaming and Oliver E. Bessette "Empirical Determination Of Processing Parameters For A Real Time Two-Dimensional Discrete Cosine Transform (2D-DCT) Video Bandwidth Compression System", Proc. SPIE 0249, Advances in Image Transmission II, (11 November 1980); https://doi.org/10.1117/12.959411

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