Video networking is the generic name for video coding for transmission over packet networks. Research in this field focuses on the two issues of Video Compression and Packet Networks.
On video compression we have done extensive investigations on various forms of compressing (reducing) video bit rates, from very low bit rate video to super high definition images. Published work in these areas are listed in the Publication list. Of particular contributions are:
* DCT based coding (H.261, MPEG 1&2 and H.263)
* Wavelet Transform/Subband coding
* Vector and Lattice Quantzation
* Fractal coding
* Arithmetic coding
* Motion estimation
* Video segmentation
* Content based coding (MPEG 4)
* Video data bases (MPEG-7)
On the Networking issues, we have contributed mainly on the performance issues, especially when video quality is assessed over packet networks, as shown in the Publication list. The topics looked at include:
* Flow and congestion control in ATM networks
* Performance management/monitoring of packet networks
* Usage parameter control/admission control
* VBR and ABR services
* Protocol for carrying multimedia services over LANs
* Video over Internet
* Cell loss concealment of video
* Video transcoding for congestion control
* Subjective assessment of video over packet networks