Method, device and microprocessor for selectively compressing video frames of a motion compensated prediction-based video codec

TitleMethod, device and microprocessor for selectively compressing video frames of a motion compensated prediction-based video codec
Publication TypePatent
Year of Publication1998
AuthorsBanham, M. R., J. C. Brailean, S. N. Levine, A. K. Katsaggelos, and G. M. Schuster
Published Source5,764,921
Date Published09/07/1998
Abstract

A method (100, 200), device (300) and microprocessor (400) are provided for selectively compressing video frames of a motion compensated prediction-based video codec based on a predetermined set of compression techniques. An energy estimate of the current displaced frame difference, DFD, is used to compute a ratio between the estimate and a historical mean of energy estimates. The ratio is iteratively compared to a predetermined set of thresholds which are associated with the predetermined set of compression techniques. The comparisons are used to choose a technique based on the thresholds, and a technique is selected to be used for encoding the current DFD.

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