Region-of-Interest Video Compression with a Composite and a Long-Term Frame

A. Leontaris and P.C. Cosman (USA)


ROI, composite, multiple, feedback, video compression.


Multiple frame prediction has proved successful in increas ing the performance of motion compensated video coders. Region-of-interest (ROI) coding in conjunction with a dual frame predictor can lead to interesting design choices on how to allocate the available bitrate among the frame re gions. In this work, we tackle the problem of applying ROI coding on aerial imagery and then on standard video conferencing sequences. For the latter, we introduce a novel composite frame scheme that takes advantage of the flexibility offered by the dual frame predictor that captures motion history from the short term past. Experimental re sults show that we can achieve significant bit rate and com putational complexity savings for packet loss scenarios.

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