Title :
Context-aware video compression for mobile robots
Author :
Lazewatsky, Daniel A. ; Giertler, Bogumil ; Witick, Martha ; Perlmutter, Leah ; Maxwell, Bruce A. ; Smart, William D.
Author_Institution :
Department of Computer Science and Engineering, Washington University in St. Louis, MO, USA
Abstract :
Operating robots across networks with unknown, bandwidth, latency and other conditions presents difficulty when the operation depends on real-time feedback and control. Standard video compression methods do a good job compressing arbitrary video, but do not take domain knowledge into account when more information about the video is known beforehand. We have incorporated robot odometry into the video pipeline, allowing video quality to be selectively reduced at times when odometry suggests that such a reduction will not adversely affect task performance of human operators. We found that selectively reducing video quality significantly reduced bandwidth usage, increasing the robot´s responsiveness and controllability, while having no measurable effect on task performance.
Keywords :
Bandwidth; Entropy; Image coding; Image color analysis; Robots; Spatial resolution; Streaming media;
Conference_Titel :
Intelligent Robots and Systems (IROS), 2011 IEEE/RSJ International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-61284-454-1
DOI :
10.1109/IROS.2011.6094996