MPEGII Video Coding For Noisy Channels (1998)
Abstract / truncated to 115 words
This thesis considers the performance of MPEG-II compressed video when transmitted over noisy channels, a subject of relevance to digital terrestrial television, video communication and mobile digital video. Results of bit sensitivity and resynchronisation sensitivity measurements are presented and techniques proposed for substantially improving the resilience of MPEG-II to transmission errors without the addition of any extra redundancy into the bitstream. It is errors in variable length encoded data which are found to cause the greatest artifacts as errors in these data can cause loss of bitstream synchronisation. The concept of a ‘black box transcoder’ is developed where MPEG-II is losslessly transcoded into a different structure for transmission. Bitstream resynchronisation is achieved using a technique ...
Information
- Author
- Swan, Robert
- Institution
- University of Cambridge
- Supervisor
- Publication Year
- 1998
- Upload Date
- July 3, 2008
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