Patent ID: 9350899
Filing Date: 2016-05-24
CPC Classification: H04N

Claim Text:
1. A non-transitory computer-implemented method in a processor, comprising: receiving a subsampled input image having luma and chroma samples into the processor; determining an initial phase difference between the luma and chroma samples from chroma site information of the subsampled input image; performing a phase computation of the subsampled input image with the processor to determine scaling parameters such that phase differences between all color components of an output image are zero; and concurrently performing, at a general scaler circuit of the processor, upscaling and chroma upsampling on the subsampled input image based on the scaling parameters to generate an upscaled image with no phase difference from the subsampled input image such that the upscaled and upsampled image is not distorted with respect to the subsampled input image.