Parallel processing approach to transform-based image coding

James O. Normile; Dan Wright; Ken Chu; Chia Lung Yeh

doi:10.1117/12.45405

1 June 1991 Parallel processing approach to transform-based image coding

James O. Normile, Dan Wright, Ken Chu, Chia Lung Yeh

Author Affiliations +

Proceedings Volume 1452, Image Processing Algorithms and Techniques II; (1991) https://doi.org/10.1117/12.45405
Event: Electronic Imaging '91, 1991, San Jose, CA, United States

Abstract

This paper describes a flexible parallel processing architecture designed for use in real time video processing. The system consists of floating point DSP processors connected to each other via fast serial links, each processor has access to a globally shared memory. A multiple bus architecture in combination with a dual ported memory allows communication with a host control processor. The system has been applied to prototyping of video compression and decompression algorithms. The decomposition of transform based algorithms for decompression into a form suitable for parallel processing is described. A technique for automatic load balancing among the processors is developed and discussed, results ar presented with image statistics and data rates. Finally techniques for accelerating the system throughput are analyzed and results from the application of one such modification described.

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James O. Normile, Dan Wright, Ken Chu, and Chia Lung Yeh "Parallel processing approach to transform-based image coding", Proc. SPIE 1452, Image Processing Algorithms and Techniques II, (1 June 1991); https://doi.org/10.1117/12.45405

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