Invention Grant
US08619189B2 Image processing apparatus to reduce isolated noise effects in moving image drive distribution processing
有权
图像处理装置可减少运动图像驱动分配处理中的隔离噪声影响
- Patent Title: Image processing apparatus to reduce isolated noise effects in moving image drive distribution processing
- Patent Title (中): 图像处理装置可减少运动图像驱动分配处理中的隔离噪声影响
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Application No.: US12965137Application Date: 2010-12-10
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Publication No.: US08619189B2Publication Date: 2013-12-31
- Inventor: Yasushi Ito , Eisaku Tatsumi , Kazuya Kitada
- Applicant: Yasushi Ito , Eisaku Tatsumi , Kazuya Kitada
- 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: JP2009-285767 20091216
- Main IPC: H04N1/393
- IPC: H04N1/393 ; H04N7/01

Abstract:
An image processing apparatus, which converts a frame rate by dividing an input frame into sub-frames and outputting the sub-frames, includes a minimum value filter unit, a low-pass filter processing unit, a generation unit, and a switching unit. In an input frame, the minimum value filter unit selects a maximum value of minimum values from the minimum values of pixel values in each horizontal line in a predetermined area including peripheral pixels of a processing target pixel, and performs pre-processing to replace the processing target pixel with the maximum value. The low-pass filter processing unit performs low-pass filter processing on the pre-processed input frame and generates a first sub-frame. The generation unit generates a second sub-frame from the first sub-frame and the input frame. The switching unit switches the first sub-frame and the second sub-frame at predetermined timing and outputs a sub-frame.
Public/Granted literature
- US20110141350A1 IMAGE PROCESSING APPARATUS, CONTROL METHOD THEREOF, AND PROGRAM Public/Granted day:2011-06-16
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