Focus of attention: Towards low bitrate video tele-conferencing
- 23 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1, 97-100
- https://doi.org/10.1109/icip.1996.560611
Abstract
Low bitrate video tele-conferencing requires adapting algorithms that may work perfectly well in a high-bitrate situation. When a slow transmission rate is unacceptable, compromise must be reached among the demands of speed, bandwidth limits and image quality. In this paper we present an approach to low bitrate video tele-conferencing by focusing attention on important information. We show that by selectively degrading the quality of less important regions, more important regions can be sent without loss of quality but with greatly reduced bandwidth requirements. A prototype system has been developed to demonstrate the concept. The experimental results show significant savings of required bandwidth for video subjected to the changes.Keywords
This publication has 8 references indexed in Scilit:
- Tracking Human Faces in Real-Time,Published by Defense Technical Information Center (DTIC) ,1995
- vicPublished by Association for Computing Machinery (ACM) ,1995
- Model-based image coding advanced video coding techniques for very low bit-rate applicationsProceedings of the IEEE, 1995
- Image sequence coding at very low bit rates: a reviewIEEE Transactions on Image Processing, 1994
- A theory of visual attention.Psychological Review, 1990
- Visual AttentionPublished by MIT Press ,1989
- Task combination and selective intake of informationActa Psychologica, 1982
- A feature-integration theory of attentionCognitive Psychology, 1980