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The DOI matches its Crossref record; 44 of the 44 references it cites were found in a registry or an index.

No-Reference Image Blur Assessment Based on Discrete Orthogonal Moments

Li, Leida, Lin, Weisi, Wang, Xuesong, Yang, Gaobo, Bahrami, Khosro, Kot, Alex C.·2016·IEEE Transactions on Cybernetics

Abstract

Blur is a key determinant in the perception of image quality. Generally, blur causes spread of edges, which leads to shape changes in images. Discrete orthogonal moments have been widely studied as effective shape descriptors. Intuitively, blur can be represented using discrete moments since noticeable blur affects the magnitudes of moments of an image. With this consideration, this paper presents a blind image blur evaluation algorithm based on discrete Tchebichef moments. The gradient of a blurred image is first computed to account for the shape, which is more effective for blur representation. Then the gradient image is divided into equal-size blocks and the Tchebichef moments are calculated to characterize image shape. The energy of a block is computed as the sum of squared non-DC moment values. Finally, the proposed image blur score is defined as the variance-normalized moment energy, which is computed with the guidance of a visual saliency model to adapt to the characteristic of human visual system. The performance of the proposed method is evaluated on four public image quality databases. The experimental results demonstrate that our method can produce blur scores highly consistent with subjective evaluations. It also outperforms the state-of-the-art image blur metrics and several general-purpose no-reference quality metrics.

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Metadata

Authors
Li, L., Lin, W., Wang, X., Yang, G., Bahrami, K., & Kot, A. C.
Venue
IEEE Transactions on Cybernetics
Published
2016-01
Volume
46
Issue
1
Pages
39-50
ISSN
  • 2168-2267 (ISSN-L)
  • 2168-2275
OpenAlex
W1978598038
Cited by
270
References
44
FWCI
31.19
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: No-Reference Image Blur Assessment Based on Discrete Orthogonal Moments. https://app.cochat.ai/papers/10.1109/tcyb.2015.2392129
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Li, L., Lin, W., Wang, X., Yang, G., Bahrami, K., & Kot, A. C. (2016). No-Reference Image Blur Assessment Based on Discrete Orthogonal Moments. IEEE Transactions on Cybernetics. https://doi.org/10.1109/tcyb.2015.2392129

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