1. An image generating device, comprising: a vector estimation circuit, for performing block matching estimation according to a target block of a first image and a predetermined search block of a second image to generate a temporary motion vector of the target block; a static text detecting circuit, for receiving the temporary motion vector of the target block, the first image, and the second image to detect static texts of the first image and the second image and then correcting the temporary motion vector according to the result of detecting static texts to generate a corrected motion vector of the target block; and a motion compensation interpolation circuit, for performing image interpolation according to all the corrected motion vectors of the first image, the first image, and the second image to generate at least one interpolated image.