UM
Mellin polar coordinate moment and its affine invariance
Yang, Jianwei1; Zhang, Liang1; Tang, Yuan Yan2
2019-01
Source PublicationPATTERN RECOGNITION
ISSN0031-3203
Volume85Pages:37-49
AbstractThe moment-based method is a fundamental approach to the extraction of affine invariants. However, only integer-order traditional moments can be used to construct affine invariants. No invariants can be constructed by moments with an order lower than 2. Consequently, the obtained invariants are sensitive to noise. In this paper, the moment order is generalized from integer to non-integer. However, the moment order cannot simply be generalized from integer to non-integer to achieve affine invariance. The difficulty of this generalization lies in the fact that the angular factor owing to shearing in the affine transform can hardly be eliminated for non-integer order moments. In order to address this problem, the Mellin polar coordinate moment (MPCM) is proposed, which is directly defined by a repeated integral. The angular factor can easily be eliminated by appropriately selecting a repeated integral. A method is provided for constructing affine invariants by means of MPCMs. The traditional affine moment invariants (AMIs) can be derived in terms of the proposed MPCM. Furthermore, affine invariants constructed with real-order (lower than 2) MPCMs can be derived using the proposed method. These invariants may be more robust to noise than AMIs. Several experiments were conducted to evaluate the proposed method performance. (C) 2018 Elsevier Ltd. All rights reserved.
KeywordMellin polar coordinate moment Mellin transform Repeated integral Affine moment invariants Affine transform
DOI10.1016/j.patcog.2018.07.036
URLView the original
Indexed BySCI
Language英语
WOS Research AreaComputer Science ; Engineering
WOS SubjectComputer Science, Artificial Intelligence ; Engineering, Electrical & Electronic
WOS IDWOS:000447819300004
PublisherELSEVIER SCI LTD
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Cited Times [WOS]:2   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Nanjing Univ Informat Sci & Technol, Sch Math & Stat, Nanjing 210044, Jiangsu, Peoples R China;
2.Univ Macau, Fac Sci & Technol, Macau, Peoples R China
Recommended Citation
GB/T 7714
Yang, Jianwei,Zhang, Liang,Tang, Yuan Yan. Mellin polar coordinate moment and its affine invariance[J]. PATTERN RECOGNITION,2019,85:37-49.
APA Yang, Jianwei,Zhang, Liang,&Tang, Yuan Yan.(2019).Mellin polar coordinate moment and its affine invariance.PATTERN RECOGNITION,85,37-49.
MLA Yang, Jianwei,et al."Mellin polar coordinate moment and its affine invariance".PATTERN RECOGNITION 85(2019):37-49.
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