A deblocking method for BDCT compressed images based on adaptive projections

Ju Jia Zou; Hong Yan

doi:10.1109/TCSVT.2004.842610

A deblocking method for BDCT compressed images based on adaptive projections

Ju Jia Zou, Hong Yan

School of Engineering, Design & Built Environment

Research output: Contribution to journal › Article

56 Citations (Scopus)

Abstract

A deblocking method based on projection onto convex sets (POCS) is proposed to reduce blocking artifacts in compressed images coded by the block discrete cosine transform. The method differs from existing POCS-based methods in three aspects. Firstly, the adjustment of a pixel's intensity is determined by local properties of the pixel. Secondly, three locally adaptive constraint sets are introduced to improve deblocking results. Thirdly, the human visual system modeling and relaxed projections are incorporated to make pixels adjust appropriately. The method is tested on typical images with excellent results.

Original language	English
Number of pages	6
Journal	IEEE transactions on circuits and systems for video technology : a publication of the Circuits and Systems Society
DOIs	https://doi.org/10.1109/TCSVT.2004.842610
Publication status	Published - 2005

Keywords

Coding theory
Digital techniques
Image processing
JPEG (Image coding standard)
MPEG (Video coding standard)
Video compression

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10.1109/TCSVT.2004.842610

Cite this

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abstract = "A deblocking method based on projection onto convex sets (POCS) is proposed to reduce blocking artifacts in compressed images coded by the block discrete cosine transform. The method differs from existing POCS-based methods in three aspects. Firstly, the adjustment of a pixel's intensity is determined by local properties of the pixel. Secondly, three locally adaptive constraint sets are introduced to improve deblocking results. Thirdly, the human visual system modeling and relaxed projections are incorporated to make pixels adjust appropriately. The method is tested on typical images with excellent results.",

keywords = "Coding theory, Digital techniques, Image processing, JPEG (Image coding standard), MPEG (Video coding standard), Video compression",

author = "Zou, {Ju Jia} and Hong Yan",

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AU - Yan, Hong

PY - 2005

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AB - A deblocking method based on projection onto convex sets (POCS) is proposed to reduce blocking artifacts in compressed images coded by the block discrete cosine transform. The method differs from existing POCS-based methods in three aspects. Firstly, the adjustment of a pixel's intensity is determined by local properties of the pixel. Secondly, three locally adaptive constraint sets are introduced to improve deblocking results. Thirdly, the human visual system modeling and relaxed projections are incorporated to make pixels adjust appropriately. The method is tested on typical images with excellent results.

KW - Coding theory

KW - Digital techniques

KW - Image processing

KW - JPEG (Image coding standard)

KW - MPEG (Video coding standard)

KW - Video compression

UR - http://handle.uws.edu.au:8081/1959.7/9978

U2 - 10.1109/TCSVT.2004.842610

DO - 10.1109/TCSVT.2004.842610

M3 - Article

SN - 1051-8215

JO - IEEE transactions on circuits and systems for video technology : a publication of the Circuits and Systems Society

JF - IEEE transactions on circuits and systems for video technology : a publication of the Circuits and Systems Society

ER -

A deblocking method for BDCT compressed images based on adaptive projections

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Keywords

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