NDLI: Half-pixel accuracy fast search in video coding

Content Provider	IEEE Xplore Digital Library
Author	Kwon, D.N.
Copyright Year	2003
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada (Kwon, D.N.)
Abstract	An efficient and fast half-pixel accuracy motion estimation algorithm is introduced and its performance is evaluated in H.263 framework. With respect to motion estimation accuracy, sub-pixel accuracy methods such as 1/2 pixel and 1/4 pixel give more accurate motion estimation of moving object in the picture frame although it requires more computation overhead. Conventional half-pixel search algorithm evaluates cost measure at all of surrounding half-pixel locations of the target integer pixel. The proposed search algorithm, however, reduces the number of computation points to only a half of the conventional half-pixel full search algorithm. Through computer simulation using test video sequences, we demonstrate that the proposed half-pixel accuracy fast search algorithm outperforms the conventional full search method in computation speed by reducing the required number of computation to 50% while it shows only a slight degradation of the reconstructed image quality in terms of PSNR.
Starting Page	73
Ending Page	76
File Size	288634
Page Count	4
File Format	PDF
ISBN	0780379462
DOI	10.1109/ISSPA.2003.1224643
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-07-04
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Video coding Motion estimation Costs Computer simulation Testing Video sequences Search methods Degradation Image reconstruction Image quality
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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