Patent ID: 6850570

Claim:
A color video coding method using a 3D-SPIHT algorithm applied in a tri-stimulus color space such as YUV with luminance plane Y and chrominance planes U and V being in the 4:2:0 format, wherein: a wavelet decomposition of the U and V planes is performed over a number of resolution levels which is a number of resolution levels of the wavelet decomposition of the luminance plane minus one; the U and V color planes being already in a sub-sampled format which allows to see the full resolution color U or V plane as an approximation of the full resolution luminance plane, the size of said full resolution color U or V plane is the same as the size of the first level approximation in the multiresolution decomposition of the Y plane and the n-th resolution level of the luminance has the same size as the (n−1)-th level of the chrominance; each pixel (i,j) of the approximation sub-band at the lowest resolution of the Y plane is associated with the pixel at the same location in the corresponding sub-band of the U and V planes.