NDLI: Scalable coding of image collections with embedded descriptors

Content Provider	IEEE Xplore Digital Library
Author	Adami, N. Boschetti, A. Leonardi, R. Migliorati, P.
Copyright Year	2008
Description	Author affiliation: Dept. of Electron. for Autom., Univ. of Brescia, Brescia (Adami, N.; Boschetti, A.; Leonardi, R.; Migliorati, P.)
Abstract	With the increasing popularity of repositories of personal images, the problem of effective encoding and retrieval of similar image collections has become very important. In this paper we propose an efficient method for the joint scalable encoding of image-data and visual-descriptors, applied to collections of similar images. From the generated compressed bit stream, it is possible to extract and decode the visual information at different granularity levels, enabling the so called ldquomidstream content accessrdquo. The proposed approach is based on the appropriate combination of vector quantization (VQ) and JPEG2000 image coding. Specifically, the images are encoded at a first draft level using an optimal visual-codebook, while the residual errors are encoded using a JPEG2000 approach. In this way, the codebook of the VQ is freely available as an efficient visual descriptor of the considered image collection. This scalable representation supports fast browsing and retrieval of image collections providing also a coding efficiency comparable with those of standard image coding methods.
Starting Page	388
Ending Page	392
File Size	1099745
Page Count	5
File Format	PDF
ISBN	9781424422944
DOI	10.1109/MMSP.2008.4665109
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-08
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image coding Visualization Encoding Vector quantization Streaming media Image color analysis Transform coding
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

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