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Proceedings Paper

Design considerations for computationally constrained two-way real-time video communication
Author(s): Lazar M. Bivolarski; Steven E. Saunders; John D. Ralston
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Paper Abstract

Today's video codecs have evolved primarily to meet the requirements of the motion picture and broadcast industries, where high‐complexity studio encoding can be utilized to create highly‐compressed master copies that are then broadcast one‐way for playback using less‐expensive, lower‐complexity consumer devices for decoding and playback. Related standards activities have largely ignored the computational complexity and bandwidth constraints of wireless or Internet based real‐time video communications using devices such as cell phones or webcams. Telecommunications industry efforts to develop and standardize video codecs for applications such as video telephony and video conferencing have not yielded image size, quality, and frame‐rate performance that match today's consumer expectations and market requirements for Internet and mobile video services. This paper reviews the constraints and the corresponding video codec requirements imposed by real-time, 2-way mobile video applications. Several promising elements of a new mobile video codec architecture are identified, and more comprehensive computational complexity metrics and video quality metrics are proposed in order to support the design, testing, and standardization of these new mobile video codecs.

Paper Details

Date Published: 2 September 2009
PDF: 17 pages
Proc. SPIE 7443, Applications of Digital Image Processing XXXII, 74430I (2 September 2009); doi: 10.1117/12.835955
Show Author Affiliations
Lazar M. Bivolarski, Droplet Technology, Inc. (United States)
Steven E. Saunders, Droplet Technology, Inc. (United States)
John D. Ralston, Droplet Technology, Inc. (United States)

Published in SPIE Proceedings Vol. 7443:
Applications of Digital Image Processing XXXII
Andrew G. Tescher, Editor(s)

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