NDLI: Fast H.264 Picture in Picture (PIP) transcoder with B-slices and direct mode support

Content Provider	IEEE Xplore Digital Library
Author	Michalevsky, Y. Shoham, T.
Copyright Year	2010
Description	Author affiliation: Electrical Engineering Department, Technion, Israel Institute of Technology, Technion Campus, Haifa 32000, Israel (Michalevsky, Y.; Shoham, T.)
Abstract	H.264, the modern standard for video coding, has become increasingly popular in recent years, and offers solutions for many applications requiring video compression. Some of these applications require insertion of content into an already compressed video. This operation incurs high computational cost if a naive approach of full re-encoding is taken. Previous efforts in this field targeted the Baseline Profile of the H.264 standard. The Main Profile, that offers very efficient encoding modes using B-slices and Spatial Direct encoding, has not been addressed. We present Guided Encoding - a novel solution for efficient Picture-in-Picture embedding using the coding parameters of the original compressed bit stream. We also present an algorithm for handling Spatial Direct mode encoding to prevent propagation of errors caused by the embedding of new content into the original sequence. We reduce the computational time by an average factor of five in comparison to performing full re-encoding while preserving the video quality.
Starting Page	862
Ending Page	867
File Size	343632
Page Count	6
File Format	PDF
ISBN	9781424457939
e-ISBN	9781424457953
DOI	10.1109/MELCON.2010.5475946
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-26
Publisher Place	Malta
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Encoding Video compression Transcoding Computational efficiency Streaming media Decoding Bit rate Runtime Bidirectional control Video 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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