FIELD: physics.
SUBSTANCE: method for motion compensation in digital dynamic video, wherein during motion compensation in frames of a video stream using a video codec, a combination is used of a search algorithm for motion compensation of frame fragments with approximation of movement of frame fragmental projections approximated by physical laws of motion of real captured mobile objects corresponding to said projections. Owing to fragmental approximation of motion in the image using a timer, real-time approximation of fractional values of velocities and positions of predictions of part of the mobile fragments of the frame is performed, and further refinement of the positions of said found preliminary approximation predictions is performed using the motion compensation search algorithm, but with smaller sizes of the prediction search regions and shift of the centres of said regions by the found approximation shift vectors.
EFFECT: higher average throughput frame capabilities of video codecs operating in real time, with insignificant decrease in average code volumes and quality of the decoded images.
2 cl, 17 dwg, 3 tbl
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VIDEO ENCODING OF SCREEN CONTENT DATA | 2014 |
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RU2679349C1 |
CONVERSION FACTOR CODING IN IMAGE/VIDEO SIGNAL CODERS AND/OR DECODERS | 2003 |
|
RU2335845C2 |
Authors
Dates
2015-06-10—Published
2013-12-16—Filed