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. 27, 2014
Filed:
Mar. 06, 2013
International Business Machines Corporation, Armonk, NY (US);
Hiroaki Kubo, Shiga-Ken, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention enables an image signal processing that can improve color representation of an image signal converted from YCrCb 4:2:2 format to YCrCb 4:2:0 format. An image signal processing apparatusincludes a bufferfor retaining YCrCb 4:2:2 image signals captured by an image signal input, a frame and line recognizerfor determining whether the line from which the YCrCb 4:2:2 image signals are captured is a first line or a second line of an adjacent line pair based on frame and line information on the YCrCb 4:2:2 image signals captured by the image signal input, and a Cr and Cb data correctorfor, if the frame and line recognizerdetermines that the line is the second line, reading YCrCb 4:2:2 image signals for the pixels in the first line at the same horizontal positions as the pixels in the second line from the bufferand correcting Cr and Cb data on the YCrCb 4:2:2 image signals for the pixels at least in the first line of the first and second lines of the line pair based on Cr and Cb data on the captured YCrCb 4:2:2 image signals for the pixels in the second line.