Abstract
This paper describes new schemes for video transmission over wireless channels. Traditionally data was segmented using headers and data type (e.g. motion vectors, low and high frequency DCT coefficients). However, for wireless applications that have very low bandwidths available, a finer granularity of control may be essential. We propose content based approaches for further video segmentation. In particular, frame type, scene changes, and motion based procedures are used to provide finer level of control for data segmentation. We go on to argue that for transport over wireless channels, different video content requires different form of resources to be allocated to it. Joint source/channel coding techniques (particularly class/content/data dependent FEC/ARQ schemes) are used to do resource allocation after initial segmentation. FEC schemes are used to provide class/template dependent error robustness and ARQ techniques give delay control. An experimental simulation platform is used to test the objective (SNR) and subjective effectiveness of proposed algorithms. Based on our initial results from FEC control we argue that introduction of video content into video modeling allows us to define various classes of importance. We believe that by using such techniques we can get better visual quality under the very low bit rates available.
Keywords
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
H. Liu and Magda EI. Zarki, Data partitioning and unbalanced error protection for H.263 video tansmission over wireless channels,“ Polytechnic University Symposium of Multimedia Communications and Video Coding (1995).
Paul Bocheck and Shih-Fu Chang. “A content based approach to VBR Video Source Modeling.” IEEE 6h International Workshop on Network and Operating Systems Support for Digital Audio and Video, (1996).
Jianhao Meng, Yujen Juan, and Shih-Fu Chang, “Scene change detection in a MPEG compressed video sequence,” ISandT/SPIS Symposium Proceedings, Vol. 2419, Feb. 1995, San Jose, California.
Louis C. Yun and D.G. Messerschmitt, “Variable Quality of Service in Systems by Statistical Power Control”, Proc. IEEE ICC (1995).
A. Ortega and M. Khansari, “Rate Control for video coding over variable bit rate channels with applications to wireless transmission,” IC/P (1995).
M. Khansari and M. Vetterli, “Layer Transmission of signals over power-constrained wireless channels,” ICIP (1995).
T. Russell Hsing, Li-Fung Chang. A. Wong. Ming-Ting Sun. and T-C Chen. “A real-time software based end-to-end wireless visual communications simulation platform,”Polytechnic University Symposium on Multimedia Communications and Video Coding (1995).
ISO/IEC 13818–2, MPEG-2, H. 262. 1994.
W.C. Jakes. Jr. Editor, “Microwave Mobile Communications”, John Wiley and Sons (1994).
D.G. Messerschmitt. J.M. Reason. A.Y. Lao, “Asynchronous video coding for wireless transport”, Proc. IEEE Workshop on Mobile Computing (1994).
ISO/IEC JTC I/SC29/WG 1 1 N 1327. MPEG96. “Description of core experintent on error resilience aspects in MPEG-4 video” (1996).
ISO/IEC JTC I/SC29/WG I I N 1331. MPEG96. “MSDL Specification Proposal’ 11996).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1997 Springer Science+Business Media New York
About this chapter
Cite this chapter
Batra, P., Chang, SF. (1997). Content-Based Video Transmission over Wireless Channels. In: Goodman, D.J., Raychaudhuri, D. (eds) Mobile Multimedia Communications. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-0151-4_33
Download citation
DOI: https://doi.org/10.1007/978-1-4899-0151-4_33
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4899-0153-8
Online ISBN: 978-1-4899-0151-4
eBook Packages: Springer Book Archive