With the rapid growth of data communication infrastructure, there has been an increasing demand for multimedia communication services over the past years. This rapid growth has posed new requirements and challenges in many related research areas. This dissertation studies the problem of efficient and robust transmission of image and video contents over noisy channels. Firstly, joint source/channel coding algorithms are proposed for image transmission based on the new image coding standard JPEG2000. By combining the forward error correction capability provided by channel coding, together with the scalability and error resilience (ER) features provided by JPEG2000, the algorithm can achieve unequal error protection gains as well as robust source decoding for single image transmission over band-limited channels. Secondly, joint source/channel coding algorithms for multiple sources transmission over a common channel sharing a given total bandwidth are proposed. The algorithms exploit the rate-distortion diversity among multiple sources to optimally distribute a total bit rate given by the channel. It is demonstrated that both improved quality and reduced quality variance can be achieved at the receiver by the proposed algorithms. Finally, a robust image transmission scheme is proposed for packet erasure channels. The algorithm is based on the ER functionalities provided by JPEG2000 for robust source decoding. Together with the proposed interleaving scheme, some erasures can be recovered without channel coding.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/282900 |
| Date | January 2005 |
| Creators | Wu, Zhenyu |
| Contributors | Marcellin, Michael W. |
| Publisher | The University of Arizona. |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Type | text, Dissertation-Reproduction (electronic) |
| Rights | Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. |
Page generated in 0.0021 seconds