NDLI: Temporal scalability using P-pictures for low-latency applications

Content Provider	IEEE Xplore Digital Library
Author	Wenger, S.
Copyright Year	1998
Description	Author affiliation: Tech. Univ. Berlin, Germany (Wenger, S.)
Abstract	Many of the newer video coding/compression standards, including MPEG-4 and H.263+ support some form of temporal scalability as part of their layered codec concept. This is generally realized by using bi-directionally predicted pictures (B-pictures), which use both an earlier and a subsequent P-picture as reference (anchor) pictures. This paper introduces a new form of temporal scalability employing only P-pictures. This mechanism results in improved real-time behavior (particularly lower latency) and a more flexible layering structure, at the cost of less efficient coding. The P-picture based temporal scalability mechanism is particularly useful for interactive multimedia communication on networks that offer several independent transport streams (possibly with different quality of service), but have sub-optimal real-time characteristics. Typical applications include both the Internet and some forms of mobile communication. The 1998 version of H.263 (known as H.263+ in both academia and industry) offers a mechanism to support P-picture scalability within the bit-stream through the reference picture selection mode. Other video coding standards, including those of the MPEG family, require slight modifications to the decoder in order to support the proposed mechanism.
Starting Page	559
Ending Page	564
File Size	380331
Page Count	6
File Format	PDF
ISBN	0780349199
DOI	10.1109/MMSP.1998.739040
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-12-07
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Scalability Video coding Streaming media Mobile communication Code standards MPEG 4 Standard Codecs Bidirectional control Delay Costs
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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