Patent ID: 8294818

Claim:
A double frame rate de-interlacing method, for generating an output image in response to an input image, the input image comprising an odd field and an even field, the output image comprising a first interpolated frame, the de-interlacing method comprising steps of: generating an i th odd output pixel row of the first interpolated frame by de-interlacing based on an i th input pixel row of the odd field and the i th input pixel row of the even field, where i is a natural number; generating an i th even output pixel row of the first interpolated frame by de-interlacing based on the i th input pixel row of the even field and an (i+1) th input pixel row of the odd field; and adjusting i and repeating the above steps to obtain all odd and even output pixel rows of the first interpolated frame, wherein the step of generating the i th odd output pixel row of the first interpolated frame further comprises steps of: generating a first pixel row by de-interlacing based on the i th input pixel row of the odd field and i th input pixel row of the even field; assigning the i th input pixel row of the odd field as a second pixel row; and determining a first weight parameter and a second weight parameter for the first and second pixel rows, to generate the i th odd output pixel row of the first interpolated frame, wherein a sum of the first and second weight parameters equals to 1, and the first and second weight parameters are associated with a motion degree of the input image.