NDLI: Methods for matching compressed video to ATM networks

Content Provider	IEEE Xplore Digital Library
Author	Safranek, R.J. Kalmanek Jr., C.R. Garg, R.
Copyright Year	1995
Description	Author affiliation: AT&T Bell Labs., Murray Hill, NJ, USA (Safranek, R.J.; Kalmanek, C.R., Jr.; Garg, R.)
Abstract	Over the last few years three technologies have reached the stage of maturation where then can become synergistic. These are wideband, high speed networking, high quality video compression (MPEG-I and II), and high capacity affordable digital storage media. This paper addresses the interaction of these three technologies. In particular, it examines the problem of taking a compressed video data stream that is stored on a server, and transmitting it over an ATM channel which has a capacity smaller than that required by the data stream. The conventional approach to this problem would be to transcode by decoding the video data, and then re-encoding so as to meet the channel constraints. Currently this is not a cost effective solution since, while MPEG decoders are relatively inexpensive, encoders are not. Our approach to this problem is to partially decompress the video bitstream. Then, perform the transcoding in the quantized data domain. Finally, a valid bitstream is reassembled and transmitted. This approach has the advantage of providing nearly identical quality as the traditional transcoding approach, at a fraction of the hardware cost.
Starting Page	13
Ending Page	16
File Size	434874
Page Count	4
File Format	PDF
ISBN	0818673109
DOI	10.1109/ICIP.1995.529027
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-10-23
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Video compression Streaming media Decoding Costs Transcoding Wideband High-speed networks Transform coding Network servers Hardware
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