NDLI: Source requantization: successive degradation and bit stealing

Content Provider	IEEE Xplore Digital Library
Author	Cohen, A.S. Draper, S.C. Martinian, E. Wornell, G.W.
Copyright Year	2002
Description	Author affiliation: MIT, Cambridge, MA, USA (Cohen, A.S.; Draper, S.C.; Martinian, E.; Wornell, G.W.)
Abstract	We consider source requantization in two forms - successive degradation (i.e., source fidelity reduction) and bit stealing (i.e., information embedding) when no forward planning has been done to facilitate the requantization. We focus on finite-alphabet sources with arbitrary distortion measures as well as the Gaussian-quadratic scenario. For the successive degradation problem, we show an achievable distortion-rate trade-off for non-hierarchically structured rate-distortion achieving codes, and compare it to the distortion-rate trade-off of successively refinable codes. We further consider source requantization in the form of bit stealing, whereby an information embedder acts on a quantized source, producing an output at the same rate. Building on the successive degradation results, we develop achievable distortion-rate trade-offs. Two cases are considered, corresponding to whether the source decoder is informed of any bit stealing or not. In the latter case, the embedder must produce outputs in the original source codebook. For the Gaussian-quadratic scenario, all trade-offs are within 0.5 bits/sample of the distortion-rate bound. Furthermore, for bit stealing, the use of simple post-reconstruction processing that is only a function of the embedded rate can eliminate the loss experienced by uninformed decoders.
Sponsorship	Brandeis Univ. IEEE Comput. Soc
Starting Page	102
Ending Page	111
File Size	473070
Page Count	10
File Format	PDF
ISBN	0769514774
ISSN	10680314
DOI	10.1109/DCC.2002.999948
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-04-02
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Degradation Data compression Chromium
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications

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

Source Requantization: Successive Degradation and Bit Stealing (2002)

Variable-Length Source Compression Using Successive Refinement and Non-linear Graph-Based Codes

Multi Level Multiple Descriptions

Index compression through document reordering

String matching with stopper compression

Sequencing multiple descriptions

PPM: one step to practicality

Multiple description coding of predictively encoded sequences

Path matching in compressed control flow traces

Source requantization: successive degradation and bit stealing

Similar Documents

Source Requantization: Successive Degradation and Bit Stealing (2002)

Variable-Length Source Compression Using Successive Refinement and Non-linear Graph-Based Codes

Multi Level Multiple Descriptions

Index compression through document reordering

String matching with stopper compression

Sequencing multiple descriptions

PPM: one step to practicality

Multiple description coding of predictively encoded sequences

Path matching in compressed control flow traces

Source requantization: successive degradation and bit stealing