- Digital Image and Video Communication Systems, Adaptive and Multiresolution Compression Techniques, and Joint Source-Channel Coding For Transmission Over Broadcast Channels and Packet Networks. Assistant Professor at USC.
- Hochschule für Telekommunikation, Leipzig, (University of Applied Sciences). Field: Information and Coding Theory. Research interests: Data compression, image coding, signal processing. Textbook on Image Data Compression.
- Chair of CS department at Duke. Interests include dynamic Huffman codes, arithmetic coding, lossless image compression, and motion compensation for video coding.