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Issue No. 01 - January (1990 vol. 1)
ISSN: 1045-9219
pp: 77-82
<p> A linear-time algorithm is developed to perform all odd (even) length circular shifts of data in an SIMD (single-instruction-stream, multiple-data-stream) hypercube. As an application, the algorithm is used to obtain an O(M/sup 2/+log N) time and O(1) memory per processor algorithm to compute the two-dimensional convolution of an N*N image and an M*M template on an N/sup 2/ processor SIMD hypercube. This improves the previous best complexity of O(M/sup 2/ log M+log N).</p>
Index Termsimage template matching; odd even shifts; odd length circular shifts; odd shifts; data routing; parallel processing; parallel algorithms; linear-time algorithm; two-dimensional convolution; N/sup 2/ processor SIMD hypercube; complexity; computational complexity; computer vision; computerised pattern recognition; computerised picture processing; parallel algorithms

S. Ranka and S. Sahni, "Odd Even Shifts in SIMD Hypercubes," in IEEE Transactions on Parallel & Distributed Systems, vol. 1, no. , pp. 77-82, 1990.
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