Patent ID: 7548276

Claim:
A moving image device performing a frame rate conversion, the device comprising: a signal input terminal to which an image signal is inputted; and a frame rate conversion unit for generating an interpolated frame using the image signal inputted to the signal input terminal and converting the frame rate of the image signal by inserting the interpolated frame into the image signal, wherein: the frame rate conversion unit generates the interpolated frame using a motion vector of the image on four frames, the four frames including a first frame which appeared, with respect to the timing when the interpolated frame is inserted, before the insertion time of the interpolated frame, a second frame appeared before the first frame, a third frame appeared after the insertion time, and a fourth frame appeared after the third frame, and the frame rate conversion unit sets straight lines passing through the first to fourth frames based on a certain interpolated pixel in the interpolated frame, and uses a sum of the difference between the pixel on the first frame and the pixel on the second frame located on the straight line, the difference between the pixel on the first frame and the pixel on the third frame located on the straight line, and the difference between the pixel on the third frame and the pixel on the fourth frame located on the straight line as information for generating the interpolated frame.