Method and apparatus for controlling video encoding data rate
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United States of America Patent
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Issued Date -
Jan 31, 2008
app pub date -
Jul 25, 2007
filing date -
Jul 27, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and apparatus for controlling a video encoding data rate in real-time in order to minimize performance deterioration, even when a scene change has occurred in an application field having a small number of available bits due to a low bit rate and a high frame rate. The method includes: a first step of determining whether scene change has occurred in a current frame; a second step of determining whether a number of current available bits is more than a preset reference when it is determined that the scene change has occurred; and a third step of adjusting a Quantization Parameter (QP) according to a first preset condition when it is determined that the number of current available bits is more than that preset reference. An apparatus includes an encoder QP controller having a QP module for adjusting the QP.
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