Patent ID: 8269887

Claim:
An image processing method, comprising: a first conversion act configured to convert a first video signal having a first frame frequency into a second video signal having a second frame frequency, the ratio of the first frame frequency to the second frame frequency being 2:5, by outputting each frame of the first video signal either three times repeatedly or two times repeatedly; and a second conversion act configured to convert the second video signal having said second frame frequency converted in said first conversion act into a third video signal having a third frame frequency, the ratio of the second frame frequency to the third frame frequency being 1000:1001 or 1001:1000, wherein said second conversion act is configured to perform said conversion such that a difference of a number of frames between each first frame group and an adjacent second frame group is maintained to be less than or equal to one, wherein the first and second frame groups are based on the three-times and two-times repeated outputs according to the first conversion act, respectively.