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Proceedings Paper

Fast image matching for localization in deep-sea based on the simplified SIFT (scale invariant feature transform) algorithm
Author(s): Li Liu; Fuyuan Peng; Yan Tian; Yiping Xu; Kun Zhao
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Paper Abstract

Image matching is one of the most important issues in object localization algorithms, while stable feature detection and representation is a fundamental component of many image matching algorithms. SIFT algorithm has been identified as the most resistant feature extraction method to common image deformations. In this paper, we use SSIFT (Simplified Scale Invariant Feature Transform) to solve the problem of image matching in non-structured underwater environments. Like SIFT, we construct a Gaussian pyramid and search for local peaks in a series of difference-of-Gaussian (DOG) images; however, instead of using local square image patch to assign orientation and build 128-element vector, we apply local circle image region and build only 12-element vector for each keypoint. The experiments have shown that SSIFT are more robust to image rotation, and more compact than the standard SIFT representation. We also present fast matching results using such descriptors for non-structured underwater objects.

Paper Details

Date Published: 10 November 2007
PDF: 7 pages
Proc. SPIE 6795, Second International Conference on Space Information Technology, 67953A (10 November 2007); doi: 10.1117/12.774014
Show Author Affiliations
Li Liu, Huazhong Univ. of Science and Technology (China)
NanHua Univ. (China)
Fuyuan Peng, Huazhong Univ. of Science and Technology (China)
Yan Tian, Huazhong Univ. of Science and Technology (China)
Yiping Xu, Huazhong Univ. of Science and Technology (China)
Kun Zhao, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 6795:
Second International Conference on Space Information Technology

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