Title :
DPCM video signal/image Fourier transform
Author :
Aggoun, A. ; Ibrahim, H.K.
Author_Institution :
Nottingham Univ., UK
Abstract :
A novel approach is proposed to increase the throughput rate and reduce the hardware cost requirement of the linear systolic matrix-vector multiplication architecture for 2D Fourier transform implementation. This is achieved by coding video signal/images more efficiently using 6-bit 1D DPCM coding system prior to processing. It is shown that using 6-bit DPCM processing results in 64% improvement in speed and a significant saving in the hardware cost. The effect of quantisation errors on DPCM video signal/image Fourier transforms is also presented
Keywords :
Fourier transforms; computerised picture processing; digital signal processing chips; pulse-code modulation; roundoff errors; systolic arrays; video signals; 1D DPCM coding system; 2D Fourier transform implementation; DPCM video signal/image Fourier transform; linear systolic matrix-vector multiplication architecture; quantisation errors;
Conference_Titel :
Digital Processing of Signals in Communications, 1991., Sixth International Conference on
Conference_Location :
Loughborough
Print_ISBN :
0-85296-522-2
