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Title: An adaptive constrained least square approach for removing blocking effect
Authors: Hong, Sung-wai
Chan, Yuk-hee
Siu, Wan-chi
Subjects: Computational complexity
Computer simulation
Constraint theory
Image compression
Image reconstruction
Least squares approximations
Issue Date: 1995
Publisher: IEEE
Source: 1995 IEEE International Symposium on Circuits and Systems : Seattle, Washington, USA, April 30-May 3, 1995, p. 773-776.
Abstract: This paper presents a new adaptive objective function based on the regularized iterative block reduction technique for low-bit rate transform coded images. Also, a better initial estimate for the regularization approach is presented. Two types of prior knowledge are used: the first type bounds the maximum tolerable error (roughness), and the second type restricts the high-frequency content (smoothness) of the restored images. Computer simulations showed that the new adaptive objective function with the proposed initial estimate performed better on both subjective and objective measures than did a previously proposed objective function.
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Type: Conference Paper
ISBN: 0-7803-2127-8
Appears in Collections:EE Conference Papers & Presentations

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