Predictive Decoding for Delay Reduction in Video Communications

Low delay is critically important for interactive video communication. This paper presents several predictive decoding techniques for delay reduction. Video frames are predicted from past video data, and displayed before they arrive at the decoder. This enables the user to choose the proper trade-off between quality and delay. In this way, it is possible to reduce the perceived end-to-end communication delay by about 100 ms while maintaining reasonable video quality.