Patent ID: 7502071

Claim:
A video information processing apparatus configured to convert interlaced video information into progressive video information, comprising: a pixel value information storing unit for storing inputted pixel value information on reference pixels on interlaced lines in each of a plurality of fields; a reference pixel motion information generating unit for generating motion information on each reference pixel which indicates whether a reference pixel is a moving image or a still image at least based on difference between the pixel value information on two reference pixels at the same position in different fields; a reference pixel motion information storing unit for storing the motion information on each reference pixel generated by the reference pixel motion information generating unit for a plurality of fields; and an interpolation pixel motion determining unit for determining whether motion information on an interpolation pixel on a line between two interlaced lines is a moving image or a still image based on the motion information on reference pixels stored in said reference pixel motion information storing unit, wherein the reference pixel motion information generating unit determines the motion information on the reference pixel in an n-th field as a moving image when a difference of the pixel value information between the reference pixel in the n-th field and the reference pixel at the same position in the (n−2)-th field is larger than a predetermined value, and, otherwise, determines the motion information on the reference pixel in the n-th field as a still image, and wherein the interpolation pixel motion determining unit is adapted to determine the motion information on the interpolation pixel in the n-th field as a moving image when the motion information on the reference pixel adjacent to the interpolation pixel on a line above or below the interpolation pixel in the n-th field indicates a moving image, or when both of the motion information on the reference pixel in the (n−1)-th field and the motion information on the reference pixel in the (n+1)-th field indicate a moving image, the reference pixels in the (n−1)-th field and the (n+1)-th field being at the same position as the interpolation pixel in the n-th field, and, otherwise, to determine the motion information on the interpolation pixel in the n-th field as a still image.