DEVICE, METHOD AND PROGRAM FOR CONVERTING FRAME RATE

摘要

<P>PROBLEM TO BE SOLVED: To provide a video signal reproducible with clear and smooth motion even when the number of frames is increased/decreased. Ž<P>SOLUTION: The device for converting a frame rate includes: a corresponding point estimation part 2 configured to estimate respective corresponding points in a plurality of image frames different in time for a plurality of pixels in a reference frame; a first gradation value generation processing part 3 configured to obtain each gradation value from gradation values each showing contrasting density of an adjacent pixel for each estimated corresponding point in each image frame; a second gradation value generation processing part 4 configured to approximate contrasting density on a corresponding point track from gradation values of the respective corresponding points in each estimated image frame by a fluency function with respect to a plurality of pixels in the reference frame to obtain each gradation value of the corresponding points in an interpolation frame from the function; and a third gradation value generation processing part 5 configured to generate a gradation value of each pixel in the interpolation frame from gradation values of the respective corresponding points in the interpolation frame. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž