Scalable spatio-temporal parallel parameterizable stream-based JPEG-LS encoder

Cássio A. Carneiro; Francisco P. Garcia; Henrique C. Freitas; Carlos P. S. Martins; Flávia M. F. Ferreira

doi:10.1587/elex.14.20160950

This article has now been updated. Please use the final version.

Scalable spatio-temporal parallel parameterizable stream-based JPEG-LS encoder

Cássio A. Carneiro, Francisco P. Garcia, Henrique C. Freitas, Carlos P. S. Martins, Flávia M. F. Ferreira

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Keywords: JPEG-LS, lossless video compression, scalable throughput, FPGA, spatio-temporal parallelism, reconfigurable architecture

JOURNAL FREE ACCESS Advance online publication

Article ID: 14.20160950

DOI https://doi.org/10.1587/elex.14.20160950

The final version of this article is now available: Vol. 14 (2017), No. 2 pp. 20160950-20160950

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Abstract

A parallel parameterizable stream-based JPEG-LS encoder architecture for scalable throughput is presented. The main contribution is the reconfigurable spatio-temporal parallelism to meet different pixel rates for lossless video compression, achieving the required throughputs with lower processing frequencies, scaled by the degree of spatial parallelism. The proposal allows for optimized performance associated to device resources and processing frequency. Experimental results were verified in Altera Stratix I FPGA device.

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