Patent ID: 7356199

Claim:
A mobile communication terminal equipped with a camera having an image distortion compensation function, comprising: an image sensor for converting an imaging signal formed by light incident through a lens to Raw Bayer RGB format data; an ISP (image signal processor) for converting the Raw Bayer RGB format data to RGB format data, which in turn is converted to YUV format data suitable for a display in the mobile communication terminal; and a back-end chip for processing the YUV format data output from the ISP to display a photographed image on an LCD (liquid crystal display) of the mobile communication terminal, wherein the back-end chip includes an image distortion compensation module comprising: a detection unit for detecting a Y-component value of a central pixel of a pixel array of the image sensor and Y-component values of pixels located diagonally to the central pixel; a comparison unit for comparing the Y-component value of the central pixel with the Y-component values of the pixels located diagonally to the central pixel; a compensation value generation unit for generating compensation values for compensating Y-component signal distortion in each of the pixels located diagonally to the central pixel according to a comparison result from the comparison unit; and a distortion compensation processing unit for outputting a distortion compensation command, together with the compensation values generated by the compensation value generation unit, to the ISP.