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Parallel scale space construction using SIMD hypercube

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3 Author(s)
Panda, A.C. ; Dept. of Comput. Sci. & Eng., Nat. Inst. of Technol. Rourkela, Rourkela, India ; Mehrotra, H. ; Majhi, B.

This paper proposes parallel scale space construction of Scale Invariant Feature Transform (SIFT) using SIMD hypercube. The parallel SIFT approach is used for iris feature extraction. The input iris images and Gaussian filters are mapped to each processor in the hypercube and convolution takes place in each processor concurrently. The time complexity of parallel algorithm is O(N2) whereas sequential algorithm performs with complexity of O(lsN2), where l is the number of octaves, s is the number of Gaussian scale levels within an octave for N2 sized iris image.

Published in:
Information and Communication Technologies (WICT), 2012 World Congress on

Date of Conference: Oct. 30 2012-Nov. 2 2012

Page(s):
625 - 628
Print ISBN:
978-1-4673-4806-5
INSPEC Accession Number:
13228803
Conference Location :
Trivandrum
Digital Object Identifier :
10.1109/WICT.2012.6409151

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