LOW LATENCY VIDEO COMPRESSION
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United States of America Patent
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Issued Date -
Apr 18, 2013
app pub date -
Oct 13, 2011
filing date -
Oct 13, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and system are described for low-latency video. In the method a frame, selected from a group of frames, is divided into P-regions and an I-region based on an assigned refresh pattern in a refresh loop. An I-region bit budget and a P-region bit budget are determined. Quantization parameters are determined using the I-region bit budget and the P-region bit budget. Macroblocks of the selected frame are encoded based on the quantization parameters. The I-complexity and P-complexity are updated and a new frame bit budget is determined. The dividing, determining of the I-region bit budget, determining of the P-region bit budget, determining of quantization parameters and encoding are repeated for each remaining frame in the group of frames.
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