Convolution on mesh connected multicomputers

Journal Article · Thu Mar 01 04:00:00 EST 1990 · IEEE (Institute of Electrical and Electronics Engineers) Transactions on Pattern Analysis and Machine Intelligence; (USA)

DOI:https://doi.org/10.1109/34.49056· OSTI ID:7052130

Ranka, S ^[1]; Sahni, S ^[2]

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1. School of Computer and Information Science, Syracuse Univ., Syracuse, NY (US)
2. Minnesota Univ., Minneapolis, MN (USA). Dept. of Computer Science

Convolution is an important primitive in computer vision and image processing. The authors present an efficient algorithm for convolution on a mesh connected computer with wrap-around. Their algorithm does not require a broadcast feature for data values as assumed by previously proposed algorithms. As a result, the algorithm is applicable both to SIMD as well s MIMD meshes. For an {ital N} {times} {ital N} image and a {ital M} {times}{ital M} template, the previous algorithms take {ital O}({ital M}{sup 2}{ital q}) time on an {ital N} {times} {ital N} mesh connected multicomputer ({ital q} is the number of bits in each entry of the convolution matrix). The authors' algorithms have complexity {ital O}({ital M}{sup 2}{ital r}) where {ital r} = max {l brace}number of bits in an image entry, number of bits in a template entry{r brace}. In addition to not requiring a broadcast capability, the authors' algorithms are faster for binary images.

• OSTI ID: 7052130
• Journal Information: IEEE (Institute of Electrical and Electronics Engineers) Transactions on Pattern Analysis and Machine Intelligence; (USA), Journal Name: IEEE (Institute of Electrical and Electronics Engineers) Transactions on Pattern Analysis and Machine Intelligence; (USA) Vol. 12:3; ISSN 0162-8828; ISSN ITPID
• Country of Publication: United States
• Language: English

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