Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2002-12-20
2009-02-17
An, Shawn (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240050, C375S240070, C375S240130, C375S240290, C375S240240, C375S240020, C382S251000, C382S239000, C382S264000
Reexamination Certificate
active
07492819
ABSTRACT:
In order to enhance the picture quality of a detected area, the present invention provides a video coding apparatus. In the apparatus, a reliability indicative of the degree of coincidence of an area detected by an important area detecting section with a real important area is calculated, and a coding parameter calculating section calculates a coding parameter to be set to the detected area according to the reliability, thereby controlling the picture quality of the detected area. Consequently, a whole image has a coding bit amount which does not break the restrictions of a transmission bit rate, and a larger coding bit amount is assigned to the important area so that a picture quality thereof can be improved and a visibility can be enhanced. In addition, the picture quality is more enhanced if a probability that the detected area might be an important area is higher.
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Japanese Office Action dated Jul. 4, 2007.
Honda Yoshimasa
Uenoyama Tsutomu
An Shawn
Panasonic Corporation
Pearne & Gordon LLP
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