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Interest points of general imbalance.

Authors
Type
Published Article
Journal
IEEE Transactions on Image Processing
1941-0042
Publisher
Institute of Electrical and Electronics Engineers
Publication Date
Volume
18
Issue
11
Pages
2536–2546
Identifiers
DOI: 10.1109/TIP.2009.2028253
PMID: 19635702
Source
Medline
License
Unknown

Abstract

The imbalance oriented selection scheme was recently introduced to detect stable interest points in weakly or sparsely textured images. The scheme chooses image points whose one-pixel-wide directional intensity variations can be clustered into two imbalanced classes as candidates. An important property of imbalance oriented selection is that imbalanced points can be contiguous to others, i.e., imbalanced points have local geometry coherent property. In this paper, we propose general imbalance decided by multipixel-wide directional intensity variations. We give a theoretical analysis on a relation between imbalance and general imbalance. In terms of the local geometry coherent property of general imbalanced points, we propose a global-to-local appearance based matching scheme for imbalanced point correspondence. Last, we present an application of general imbalanced points to road sign detection, which demonstrates the good potential of general imbalanced points.

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