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Blind Image Quality Assessment: A Natural Scene Statistics Approach in the DCT Domain

Saad, M. A., Bovik, A. C., Charrier, C.·2012·IEEE Transactions on Image Processing

Abstract

We develop an efficient, general-purpose, blind/noreference image quality assessment (NR-IQA) algorithm using a natural scene statistics (NSS) model of discrete cosine transform (DCT) coefficients. The algorithm is computationally appealing, given the availability of platforms optimized for DCT computation. The approach relies on a simple Bayesian inference model to predict image quality scores given certain extracted features. The features are based on an NSS model of the image DCT coefficients. The estimated parameters of the model are utilized to form features that are indicative of perceptual quality. These features are used in a simple Bayesian inference approach to predict quality scores. The resulting algorithm, which we name BLIINDS-II, requires minimal training and adopts a simple probabilistic model for score prediction. Given the extracted features from a test image, the quality score that maximizes the probability of the empirically determined inference model is chosen as the predicted quality score of that image. When tested on the LIVE IQA database, BLIINDS-II is shown to correlate highly with human judgments of quality, at a level that is competitive with the popular SSIM index.

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Metadata

Authors
Saad, M. A., Bovik, A. C., & Charrier, C.
Venue
IEEE Transactions on Image Processing
Published
2012-08
Volume
21
Issue
8
Pages
3339-3352
ISSN
  • 1057-7149 (ISSN-L)
  • 1941-0042
OpenAlex
W2162692770
Cited by
1,751
References
8
FWCI
76.72
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Blind Image Quality Assessment: A Natural Scene Statistics Approach in the DCT Domain. https://app.cochat.ai/papers/10.1109/tip.2012.2191563
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Saad, M. A., Bovik, A. C., & Charrier, C. (2012). Blind Image Quality Assessment: A Natural Scene Statistics Approach in the DCT Domain. IEEE Transactions on Image Processing. https://doi.org/10.1109/tip.2012.2191563

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