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; wherein the static text detecting circuit comprises: a static text angle detecting circuit, for separately detecting the angle of each pixel in each block of the first image and the second image according to at least one angle, and counting the number of pixels having the same angles in each block of the first image and the corresponding block of the second image so as to determine the weight of each block; and a data filtering circuit, for determining whether a block comprises any static text or not according to the weight of the block; wherein the static text detecting circuit comprises: a first static text angle detecting unit comprising N sets of angle detecting units for detecting whether each block of the second image has the N sets of angles or not; and a second static text angle detecting unit comprising N sets of angle detecting units for detecting whether each block of the first image has the N sets of angles or not wherein N is a positive integer less than infinity; wherein the total number of angles included in each block of the second image and the first image is calculated according to the detection result from the first and the second static text angle detecting units and is converted to initial static text weight data.