Video encoding using variance for selecting an encoding mode
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United States of America Patent
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Jan 30, 2018
Grant Date -
Mar 3, 2016
app pub date -
Nov 9, 2015
filing date -
Jun 29, 2012
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Abstract
Video encoding using variance may include generating a first input variance based on pixel values from a first block from a first frame from an input video stream, generating a first encoded block by encoding the first block, generating a first reconstructed block by reconstructing the first encoded block, generating a first reconstruction variance based on pixel values of the first reconstructed block, comparing the first input variance and the first reconstruction variance to detect a visual artifact in the first reconstructed block, generating a second encoded block by encoding a second block from a second frame from the input video stream, wherein encoding the second block includes selecting an encoding mode based on the detection of the visual artifact in the first reconstructed block, including the second encoded block in an output bitstream, and storing or transmitting the output bitstream.
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