Patent ID: 7113222
Filing Date: 2006-09-26
Classification: H04N

Abstract:
1. A method for converting an interlace image signal to a progressive image signal, the interlace image signal having a first field of pixel data of odd number lines and a second field of pixel data of even number lines, the progressive image signal having a frame of pixel data of odd number lines and even number lines, comprising: calculating a difference of pixel data between a pixel of one field and a corresponding pixel of a previous one field, the one field being the first field or the second field; deciding whether the pixel of the one field is in a static area or a moving area based on the difference; outputting, if the pixel of the one field is in the static area, pixel data of the pixel of the one field and pixel data of a corresponding pixel of the other field as pixel data of the same pixels of an odd number line and an even number line in the progressive image; and outputting, if the pixel of the one field is in the moving area, interpolated data of the pixel of the one field and interpolated data of a corresponding pixel of the other field as pixel data of the same pixels of an odd number line and an even number line in the progressive image, the interpolated data being filtered pixel data along a temporal direction and a spatial direction.