Data Compression Conference
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Abstract

Video codecs that use motion compensation have recently achieved performance improvements from the use of intra/inter mode switching decisions within a rate-distortion framework. A separate development has involved the use of multiple frame prediction, in which more than one past reference frame is available for motion estimation. In this paper, we show that using a dual frame buffer (one short term frame and one long term frame available for prediction) together with intra/inter mode switching improves the compression performance of the coder. Also, we improve the mode switching algorithm with the use of half-pel motion vectors.
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