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:
May. 12, 2009
Filed:
Jul. 21, 2005
Yasuhiro Hori, Tokyo, JP;
Koichi Sato, Kanagawa-ken, JP;
Yasuhiro Hori, Tokyo, JP;
Koichi Sato, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
In an interpolation pixel generation circuit, M pairs and N pairs (N<M) of correlation judgment pixels are generated from pixels on at least two scanning lines which adjoin a pixel to be interpolated, using one pair of pixels being symmetric with respect to the pixel to be interpolated. A correlation value between pixel values of a correlation judgment pair is calculated in each M pairs and N pairs of correlation judgment pixels. Correlation judging pairs having high correlation are selected, and correlation direction is judged. Based on the both judged correlation direction of M pairs and the N pairs of correlation judgment pixels, an interpolation priority direction is determined from a slant priority direction, a vertical priority direction, and a vertical top priority direction. An interpolation pixel is generated, which pixel value is an average of pixel values of the selected correlation judgment pixels being in the determined direction.