Patent ID: 8471961
Filing Date: 2013-06-25
Classification: G09G

Abstract:
1. A video processing apparatus for inputting a video signal input on a frame-by-frame basis, generating two sub-frame images for each frame, and outputting the generated images, the apparatus comprising: an input unit configured to input a video signal on a frame-by-frame basis; a sub-frame generating unit configured to generate high-frequency image data and low-frequency image data from original image data input at each frame and to alternately output the generated high-frequency image data and the generated low-frequency image data at a frequency that is double the frame rate at which the input unit has input the video signal; an image combining unit configured to generate image data as first-sub-frame image data by combining the high-frequency image data and the low-frequency image data at the immediately preceding sub-frame output from the sub-frame image generating unit at a first composite ratio α (0≦α≦1), and to generate image data as second-sub-frame image data by combining the low-frequency and high-frequency image data output from the sub-frame image generating unit at a second composite ratio 1−α; and a polarity inverting unit configured to invert the polarity of the second-sub-frame image data with respect to the first-sub-frame image data generated by the image combining unit to produce polarity-inverted image data and then to output the polarity-inverted image data, wherein the image combining unit includes an adjusting unit configured to adjust the first composite ratio α so that the first composite ratio α decreases frame by frame while the present frame is in a first frame group composed of N consecutive frames (N being an integer of 2 or larger), and to adjust the first composite ratio α so that the first composite ratio α increases frame by frame while the present frame is in a second frame group composed of M consecutive frames (M being an integer of 2 or larger) subsequent to the first frame group.