Real-time video transmission over the Internet is becoming increasingly desirable for videoconferencing and other interactive applications. The reliable transport protocols used by the Internet were designed mainly for non-real-time data, and cannot be used for delay critical applications, which must therefore be able to cope with packet loss. Motion compensated video coding is especially sensitive to loss because of temporal error propagation. The effect of packet loss on H.263+ video transmitted using the real-time transport protocol (RTP) is assessed. Various algorithms are described to minimise or prevent temporal error propagation. These algorithms do not rely on retransmissions and do not introduce more than one frame delay, and are therefore suitable for real-time and multicast applications. It is shown that the robustness of H.263+ video can be greatly improved using these techniques. Such techniques can also be applied to other motion compensated video coding standards such as MPEG-4 and H.26L.
|Translated title of the contribution||Packet loss resilient videoconferencing using H.263+|
|Title of host publication||International Conference on Acoustics, Speech and Signal Processing (CASSP'02) Orlando, FL, USA|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|Pages||IV-4052 - IV-4055|
|Number of pages||4|
|Publication status||Published - May 2002|
|Event||2002 IEEE International Conference on Acoustics, Speech, and Signal Processing - Orlando, Florida, United States|
Duration: 13 May 2002 → 17 May 2002
|Conference||2002 IEEE International Conference on Acoustics, Speech, and Signal Processing|
|Abbreviated title||ICASSP '02|
|Period||13/05/02 → 17/05/02|
Bibliographical noteRose publication type: Conference contribution
This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to firstname.lastname@example.org.
By choosing to view this document, you agree to all provisions of the copyright laws protecting it.