A Foveated Imaging System to Reduce Transmission Bandwidth of Video Images from Remote Camera Systems
Final rept. 30 Sep 94-30 Sep 98
OWL DISPLAY INC AUSTIN TX
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This is the final progress report for a joint project between Geislers laboratory at the University of Texas at Austin and OWL Displays. Inc., to develop a real time variable resolution foveated imaging system for video communications tasks such as remote control of unmanned vehicles. Although the OWL side of the project might best be described as a modest success, we believe the software and softwarehardware integration performed at UT has been a big success. A general purpose real-time linkable library for Pentium class computers running the Windows9598NT OS has been developed for coding and decoding variable resolution static images and video, both in 8-bit gray scale and 24-bit color. Real-time demonstration executables using the library are currently available at our web site for this project httpfi.cvis.psv.utexas.edu. We have tested our real time software in conjunction with MPEG H.263 and shown that it generally produces very substantial bandwidth savings both for I frames and P frames. We have also developed our own real time image compression library which includes fast motion compensation, fast pyramid coding, fast zero-tree coding and arithmetic coding. The foveated imaging software has been successfully interfaced and tested with a 512x512 8-bit bw camera and two separate eye trackers an ASL desktop heads-free eye tracker and the OWLASL V8 helmet mounted eye tracker.
- Computer Programming and Software