IMAGE PROCESSING APPARATUS AND METHOD

WIPO Patent Application WO/2009/035143

A1

To predict a target code amount from a code amount calculated by use of one quantization scale. As to a plurality of quantized data for prediction that differ in MB occurrence code amount with respect to a fixed quantization scale (QI), the invention stores, as prediction curves, relational information indicative of relationships between a plurality of quantization scales (Q) representative of a plurality of quantization steps and the MB occurrence code amounts. Using, out of a plurality of predetermined quantization scales (Q), one fixed quantization scale (QI), the invention quantizes image data to produce temporary quantized data for eachof macro blocks, thereby calculating an MB occurrence code amount of the temporary quantized data for each macro block. The invention then selects, from a plurality of prediction curves, one quantized data for prediction based on both the MB occurrence code amount of the temporary quantized data and the fixed quantization scale (QI), and predicts, based on the selected quantized data for prediction, MB occurrence code amounts when the image data would be quantized by use of the quantization scales (Q) that were not selected by the a quantization selecting part.

SHIBATA SHOJIRO (JP)
SHIBATA TAKESHI (JP)
KOYABU KYOHEI (JP)
FUCHIE TAKAAKI (JP)

PCT/JP2008/066910

March 19, 2009

September 12, 2008

Click for automatic bibliography generation  

SONY CORP (JP)
SHIBATA SHOJIRO (JP)
SHIBATA TAKESHI (JP)
KOYABU KYOHEI (JP)
FUCHIE TAKAAKI (JP)

H04N7/26; H03M7/30

JP2006222555A	2006-08-24
JPH0865677A	1996-03-08
JPH04114585A	1992-04-15

TANABE, Shigemoto (6-4 Osaki 3-chom, Shinagawa-ku Tokyo, JP)

View/Download PDF      PDF Help

Previous Patent: DENTAL INLAY GRAFT MEASURING/MACHINING SYSTEM

Next Patent: IMAGE PROCESSING DEVICE AND IMAGE PROCESSING METHOD