METHOD OF SCALABLE VIDEO CODING FOR VARYING SPATIAL SCALABILITY OF BITSTREAM IN REAL TIME AND A CODEC USING THE SAME
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United States of America Patent
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Issued Date -
Jun 25, 2009
app pub date -
Nov 15, 2006
filing date -
Nov 15, 2005
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Abandoned
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Abstract
Methods of coding a bitstream in which the frames are encoded for enabling a spatial resolution is changed in real time, extracting the bitstream by adding a signaling message indicating that the spatial resolution is changed, and decoding the bitstream in which the spatial resolution is changed in real time after actively detects whether the spatial resolution is changed without additional information, and a codec using the methods are provided. Therefore, if the network has the restricted environment that the resolution is changed in real time while a video encoding and decoding or if there is a need to output the video whose the spatial resolution is partly changed in the decoder, the present invention provides methods to actively cope with the spatial resolution change of the video so as to efficiently watch the video.
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