Patent ID: 7012618
Filing Date: 2006-03-14
Classification: G09G,H04N

Abstract:
1. Method for processing an RGB digital video signal to be displayed on a display with the use of a memory, the method comprising the operations of: converting said digital video signal from an RGB color space to a YUV color space to obtain a YUV video signal; subjecting the YUV video signal to a processing operation selected from among a sub-sampling operation and a data compression operation to obtain a processed video signal; storing in said memory said processed video signal; reading from said memory the signal stored therein; subjecting the processed video signal read from said memory to a return operation that is complementary to said processing operation, thereby obtaining a re-processed video signal; and reconverting the re-processed video signal from the YUV color space to the RGB color space, to obtain a reconverted RGB digital video signal, wherein at least one among said converting and reconverting operations is performed as a matrix conversion using coefficients expressible as sums of powers of 2, so that said at least one among said converting and reconverting operations is performed using a series of elementary shifting and summing operations.