NDLI: An enhanced trellis coded quantization scheme for robust image transmission

Content Provider	IEEE Xplore Digital Library
Author	Hongzhi Li Chang Wen Chen
Copyright Year	1998
Description	Author affiliation: Dept. of Electr. Eng., Missouri Univ., Columbia, MO, USA (Hongzhi Li)
Abstract	In this paper, we present an enhanced scheme over a trellis coded quantization (TCQ) approach recently proposed for the transmission of compressed images over noisy channels. This original scheme employs block DCT, TCQ, and fixed length bit allocation so that the compressed data is relatively insensitive to channel noise. Although the fixed length coding is able to avoid the catastrophic error propagation, one problem of the approach is the severe distortion of the whole blocks in the case of high channel error rate. To reduce the unpleasant error block effects, we propose to re-arrange the subsources of the image before the process of TCQ. With such a preprocessing, the degradation caused by the channel error can be distributed to the whole image, instead of within a particular block. Preliminary results show that this enhanced TCQ scheme is able to improve both the PSNR and the visual quality of the reconstructed image.
Starting Page	9
Ending Page	12
File Size	1043319
Page Count	4
File Format	PDF
ISBN	0780344553
DOI	10.1109/ISCAS.1998.698739
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-05-31
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quantization Robustness Image communication Image coding Discrete cosine transforms PSNR Bit rate Error analysis Image reconstruction Degradation
Content Type	Text
Resource Type	Article

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

Nonuniform threshold trellis coded quantization for image transmission through noisy channels

Progressive transmission in trellis coded quantization-based image coders

Robust image transmission using source adaptive modulation and trellis-coded quantization

An Image Compression Scheme Using AC Predictions

Adaptive DCT coding of images using entropy-constrained trellis coded quantization

Transform coding of monochrome and color images using trellis coded quantization

Adaptive joint source/channel coding for robust video transmission

Quadtree based classification with arithmetic and trellis coded quantization for subband image coding

Towards Objective Metrics for Blind Assessment of Images Quality

An enhanced trellis coded quantization scheme for robust image transmission

Similar Documents

Nonuniform threshold trellis coded quantization for image transmission through noisy channels

Progressive transmission in trellis coded quantization-based image coders

Robust image transmission using source adaptive modulation and trellis-coded quantization

An Image Compression Scheme Using AC Predictions

Adaptive DCT coding of images using entropy-constrained trellis coded quantization

Transform coding of monochrome and color images using trellis coded quantization

Adaptive joint source/channel coding for robust video transmission

Quadtree based classification with arithmetic and trellis coded quantization for subband image coding

Towards Objective Metrics for Blind Assessment of Images Quality

An enhanced trellis coded quantization scheme for robust image transmission