Patent ID: 7565031

Claim:
A method for controlling a display device to display input video images represented by a first number of pixels or subpixels arranged line by line and column by column in an input video signal to the display device which has a display area that displays an output video image having a second number of pixels or subpixels arranged line by line and column by column, wherein the numbers of lines and/or columns of the display area differ from the number of lines and/or columns of the input video images, the method comprising the steps of: distributing a number of support points, corresponding to a number of pixels or subpixels in the output video image displayed in the display area of the display device, across the lines or columns of the input video image at integer pixel or subpixel distances having a minimum variation from one another, wherein the ratio of the number of support points to the number of pixels or subpixels in a line or column of the input video image correspond to the desired scaling factor; and selecting or calculating one of a pixel or subpixel value for a pixel or subpixel in the output video image from pixel or subpixel values in the input image lying in a range between a corresponding support point and a neighbouring support point; wherein the method further comprises: distributing the support points of two successive lines or columns of the input video image such that at least one range lying between two support points of one line or column of the input image spatially overlaps offset with respect to a corresponding range of a preceding or succeeding line or column of the input video image; and controlling the display device to reproduce in the display area the selected or calculated pixel or subpixel value, corresponding to the output video image.