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Updated: Aug 20, 2026

Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
Video compression for lossy packet networks with mode switching and a dual-frame buffer
Athanasios Leontaris1, Pamela C Cosman
1Department of Electrical and Computer Engineering, University of California at San Diego, La Jolla, CA 92093-0407, USA. aleontar@code.ucsd.edu
Abstract:
Video codecs that use motion compensation benefit greatly from the development of algorithms for near-optimal intra/inter mode switching 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. We improve the mode-switching algorithm with the use of half-pel motion vectors. In addition, we investigate the effect of feedback in making more informed and effective mode-switching decisions. Feedback information is used to limit drift errors due to packet losses by synchronizing the long-term frame buffers of both the encoder and the decoder.
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