Image encoding method and image encoding apparatus
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United States of America Patent
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Jul 28, 2020
Grant Date -
Mar 10, 2016
app pub date -
Nov 14, 2015
filing date -
May 23, 2014
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Abstract
An image encoding method includes acquiring a constant bit rate or a variable bit rate, determining temporal layers for a plurality of images, and setting, in a case where the constant bit rate is selected, (1) a first bit rate type of a top temporal layer to the constant bit rate, and (2) a second bit rate type of one or more other layers to the variable bit rate. The method also includes setting, in a case where the variable bit rate is selected, both the first bit rate type of the top temporal layer and the second bit rate of the one or more layers to the variable bit rate. The method further includes encoding each of the plurality of images, prohibiting reference to the images with the temporal layers higher than each of the temporal layers that each of the images belongs to, and generating the bitstream.
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