Image processing apparatus and control method

申请公布号：

US8531601(B2)

申请号：

US20080186585

申请日期：

2008.08.06

申请公布日期：

2013.09.10

申请人：

KOBAYASHI KIWAMU;CANON KABUSHIKI KAISHA

发明人：

KOBAYASHI KIWAMU

分类号：

H04N7/01;G02F1/133;G09G3/20;G09G3/36;G09G5/00;G09G5/36;G09G5/391;H04N11/20

主分类号：

H04N7/01

摘要：

This invention enables reduction of moving blurring in a hold-type display device and reduce flicker in an impulse-type display device, and also enables to suppress distortion such as ghost or tail-blurring in pursuit. A LPF generates low-frequency image data from input frame. High-frequency emphasized image data is also generated using a subtractor and an adder. A SizeDown unit reduces the low-frequency image data to decrease the number of pixels. A motion detection/motion application unit performs motion detection and motion application from the reduced image data of the frame of interest and that of the next frame to generate reduced image data located at the intermediate position between them. A SizeUp unit enlarges the generated reduced image data. Another LPF filters the enlarged image data and outputs the result as low-frequency image data. A switch alternately outputs the high-frequency emphasized and the low-frequency images at a speed twice the input frame rate.