Six-bit DPCM video signal processing and implementation using systolic arrays

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Six-bit DPCM video signal processing and implementation using systolic arrays

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A novel approach to increase the speed and reduce the hardware requirement of 2-D systolic convolvers for real-time video signal/image processing is proposed. This is achieved by coding video signals/images more efficiently using six-bit I-D DPCM coding. It is shown that using six-bit differential pulse-code modulation processing results in a 57% improvement in speed and a significant saving in the cost of 2-D systolic convolvers. The effect of quantisation errors on DPCM image convolution is also presented.

Inspec keywords: cellular arrays; pulse-code modulation; two-dimensional digital filters; computerised picture processing

Other keywords: DPCM video signal processing; hardware requirement reduction; 6 bit; quantisation errors; real-time processing; encoding; cost saving; six-bit 1-D DPCM coding; 2-D systolic convolvers; DPCM image convolution; improvement in speed; systolic arrays; six-bit differential pulse-code modulation processing; image processing

Subjects: Optical information, image and video signal processing; Digital filters; Digital filters; Modulation and coding methods; Computer vision and image processing techniques

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