NDLI: Speeding up motion estimation in modern video encoders using approximate metrics and SIMD processors

Content Provider	IEEE Xplore Digital Library
Author	Pigeon, S. Coulombe, S.
Copyright Year	2009
Description	Author affiliation: Department of Software and Information Technology Engineering, École de Technologie Supérieure, 1100 Notre-Dame Ouest, Montréal, Qc, H3C 1K3, Canada (Pigeon, S.; Coulombe, S.)
Abstract	In the past, efforts have been devoted to the amelioration of motion estimation algorithms to speed up motion compensated video coding. Now, efforts are increasingly being directed at exploiting the underlying architecture, in particular, single instruction, multiple data (SIMD) instruction sets. The resilience of motion estimation algorithms to various error metrics allows us to propose new high performance approximate metrics based on the sum of absolute differences (SAD). These new approximate metrics are amenable to efficient branch-free SIMD implementations which yield impressive speed-ups, up to 11:1 in some cases, while sacrificing image quality for less than 0.1 dB on average.
Starting Page	233
Ending Page	238
File Size	367408
Page Count	6
File Format	PDF
ISBN	9781424446810
DOI	10.1109/ISIEA.2009.5356471
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-04
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Video coding Motion estimation Instruction sets SSE Error metric SSE2 SIMD Application software Information technology Resilience Industrial electronics Computer aided instruction Approximate metric Sampling methods Motion compensation Computational efficiency
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