Invention Grant
- Patent Title: Video processing apparatus and method for controlling the same
- Patent Title (中): 视频处理装置及其控制方法
-
Application No.: US12850489Application Date: 2010-08-04
-
Publication No.: US08643785B2Publication Date: 2014-02-04
- Inventor: Masanao Kurita , Atsushi Mizutome
- Applicant: Masanao Kurita , Atsushi Mizutome
- Applicant Address: JP Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Canon USA, Inc., IP Division
- Priority: JP2009-191194 20090820
- Main IPC: H04N5/46
- IPC: H04N5/46

Abstract:
A video processing apparatus determines whether a video signal of a predetermined resolution is a pseudo-resolution video signal generated from a video signal of resolution lower than the predetermined resolution. The video processing apparatus generates a first frequency histogram relating to a video signal of a first resolution among a plurality of video signals which are identical in contents and different from one another in resolution and a second frequency histogram relating to a video signal of a second resolution which is lower than the first resolution, compares the first frequency histogram with the second frequency histogram, compares a similarity between the first frequency histogram and the second frequency histogram with a predetermined threshold value, and determines, if the similarity is equal to or less than the predetermined threshold value, that the video signal of the first resolution is a pseudo-resolution video signal.
Public/Granted literature
- US20110043701A1 VIDEO PROCESSING APPARATUS AND METHOD FOR CONTROLLING THE SAME Public/Granted day:2011-02-24
Information query