NDLI: Blocking artifacts suppression in block-coded images using overcomplete wavelet representation

Content Provider	IEEE Xplore Digital Library
Author	Liew, A.W.-C. Hong Yan
Copyright Year	1991
Abstract	It is well known that at low-bit-rate block discrete cosine transform compressed image exhibits visually annoying blocking and ringing artifacts. In this paper, we propose a noniterative, wavelet-based deblocking algorithm to reduce both types of artifacts. The algorithm exploits the fact that block discontinuities are constrained by the dc quantization interval of the quantization table, as well as the behavior of wavelet modulus maxima evolution across wavelet scales to derive appropriate threshold maps at different wavelet scales. Since ringing artifacts occur near strong edges, which can be located either along block boundaries or within blocks, suppression of block discontinuities does not always reduce ringing artifacts. By exploiting the behavior of ringing artifacts in the wavelet domain, we propose a simple yet effective method for the suppression of such artifacts. The proposed algorithm can suppress both block discontinuities and ringing artifacts effectively while preserving true edges and textural information. Simulation results and extensive comparative study with both iterative and noniterative methods reported in the literature have shown the effectiveness of our algorithm.
Sponsorship	IEEE Circuits and Systems Society
Starting Page	450
Ending Page	461
Page Count	12
File Size	784800
File Format	PDF
ISSN	10518215
Volume Number	14
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quantization Discrete cosine transforms Image coding Iterative algorithms Discrete wavelet transforms Bit rate Information technology Wavelet analysis Image analysis Wavelet domain
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Media Technology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Blocking artifacts reduction in JPEG compressed images using overcomplete wavelet representation

On the POCS-based postprocessing technique to reduce the blocking artifacts in transform coded images

Removal of blocking and ringing artifacts in transform coded images

Blocking artifacts removal with a successive structure analysis using wavelet transform

Adaptive reduction of blocking artifacts in DCT domain for highly compressed images

A new deblocking algorithm based on feature analysis in wavelet domain

Removal of blocking and ringing artifacts using transform domain denoising

A New Deblocking Algorithm Based on Wavelet Transform and MRF for DCT-Coded Images

DCT-domain blind measurement of blocking artifacts in DCT-coded images

Blocking artifacts suppression in block-coded images using overcomplete wavelet representation

Similar Documents

Blocking artifacts reduction in JPEG compressed images using overcomplete wavelet representation

On the POCS-based postprocessing technique to reduce the blocking artifacts in transform coded images

Removal of blocking and ringing artifacts in transform coded images

Blocking artifacts removal with a successive structure analysis using wavelet transform

Adaptive reduction of blocking artifacts in DCT domain for highly compressed images

A new deblocking algorithm based on feature analysis in wavelet domain

Removal of blocking and ringing artifacts using transform domain denoising

A New Deblocking Algorithm Based on Wavelet Transform and MRF for DCT-Coded Images

DCT-domain blind measurement of blocking artifacts in DCT-coded images

Blocking artifacts suppression in block-coded images using overcomplete wavelet representation