The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 10, 2010
Filed:
Apr. 19, 2004
Shintaro Okada, Toyko, JP;
Kazuhiko Ueda, Kanagawa, JP;
Mitsuyasu Asano, Tokyo, JP;
Takeshi Kubozono, Kanagawa, JP;
Kazuki Yokoyama, Kanagawa, JP;
Shintaro Okada, Toyko, JP;
Kazuhiko Ueda, Kanagawa, JP;
Mitsuyasu Asano, Tokyo, JP;
Takeshi Kubozono, Kanagawa, JP;
Kazuki Yokoyama, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present invention relates to a signal processing apparatus and a method, a recording medium, and a program, in which portions except an edge can be smoothed while the edge whose change in pixel value is steep is held correctly. A pixel of attention is determined in step S, and a neighboring pixel is determined in step S. In step S, a difference in pixel values between the pixel of attention and each neighboring pixel is calculated. In step S, according to a relationship in size between the difference and a threshold value ε., flags are raised for the neighboring pixel and a neighboring pixel which are symmetrical. Furthermore, a flag is also raised for a neighboring pixel away from, in view of the pixel of attention, the symmetrical neighboring pixel for which the flag is raised. In step S, 7-pixel taps centered around the pixel of attention are averaged by weight. However, with respect to the neighboring pixel for which the flag is raised, the pixel value is replaced by that of the pixel of attention C, and is calculated. The present invention can be applied to a video camera, a television receiver, etc.