Patent ID: 8159615

Claim:
A method of merging a graphical source signal with an input video signal for display on a display device, comprising: receiving an input video signal at a hardware scaler device and generating a predistorted video signal; receiving a graphics sources signal at a programmed processor, the programmed processor (i) calculating a warping map and (ii) warping the graphics source signal using the warping map to generate a warped graphical overlay signal, wherein the warping comprises: analyzing pixel values of the graphics source signal to identify at least one non-flat portion and at least one flat portion of the graphics source signal, applying a filter to the pixel values associated with the non-flat portion of the graphics source signal, and replicating the pixel values associated with the flat portion of the graphics source signal without applying any filtering thereto; and merging the predistorted video signal from the hardware scaler with the warped graphical overlay signal from the program processor.