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Title: Reduction of block-transform image coding artifacts by using local statistics of transform coefficients
Authors: Choy, Steven S. O.
Chan, Yuk-hee
Siu, Wan-chi
Subjects: Codes (symbols)
Coding errors
Mathematical transformations
Issue Date: Jan-1997
Publisher: IEEE
Source: IEEE signal processing letters, Jan. 1997, v. 4, no. 1, p. 5-7.
Abstract: This letter presents a new approach to reduce coding artifacts in transform image coding. We approach the problem in an estimation of each transform coefficient from its quantized version with its local mean and variance. The proposed method can reduce much coding artifacts of low bit-rate coded images, and at the same time guarantee that the resulting images satisfies the quantization error constraint.
Rights: © 1997 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
Type: Journal/Magazine Article
DOI: 10.1109/97.551686
ISSN: 1070-9908
Appears in Collections:EE Journal/Magazine Articles

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