Image coding apparatus, image coding method, and image coding program for coding at least one still frame with still frame coding having a higher quality than normal frame coding of other frames
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United States of America Patent
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Oct 14, 2008
Grant Date -
Jul 17, 2003
app pub date -
Jan 14, 2003
filing date -
Jan 16, 2002
priority date (Note) -
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status (Latency Note)
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Abstract
An image coding apparatus includes a still frame coding judgment unit for judging whether a target frame to be coded is a still frame or not from a difference value between the target frame and an immediately previous reference frame, and a quantization parameter control unit for performing control of a quantization parameter value to be used for coding, on an initial one frame at which an image starts to come into a standstill, wherein the initial frame is subjected to coding with less coding error as compared with coding for other frames.
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