Video coding system with efficient processing of zooming transitions in video

Video coding system with efficient processing of zooming transitions in video

A video coder, responsive to detection of a zooming transition in source video, estimates a scale factor and a zooming rectangle for a reference frame, scales content of the reference frame within the zooming rectangle according to the scaling factor, codes content of a new frame of the source video...

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Hauptverfasser: Wu, Hsi-Jung, Zhou, Xiaosong, Chung, Chris Y
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
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creator Wu, Hsi-Jung
Zhou, Xiaosong
Chung, Chris Y
description A video coder, responsive to detection of a zooming transition in source video, estimates a scale factor and a zooming rectangle for a reference frame, scales content of the reference frame within the zooming rectangle according to the scaling factor, codes content of a new frame of the source video predictively using the scaled reference frame as a basis of prediction, and transmits coded video data obtained from the predictive coding to a decoder along with an indication of the scaling factor and zooming rectangle.
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ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title Video coding system with efficient processing of zooming transitions in video
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