In a video signal processing device that generates an interpolated frame between original-image frames formed by an existing video signal, a frame interpolation unit generates pixel interpolation information indicating for each pixel a process in which a pixel forming the interpolated frame is generated. Next, an enhancement-filter-coefficient adjusting unit determines for each pixel a level of enhancement to be applied to the pixel forming the interpolated frame by using pixel interpolation information, and adjusts for each pixel a coefficient of an enhancement filter according to a determined level. An enhancement-filter applying unit then applies the enhancement filter of which coefficient is adjusted for each pixel, to each pixel forming the interpolated frame.