FIELD: reference image resampling.
SUBSTANCE: invention relates to means for resampling a reference image with an offset in a video bitstream. A flag indicating that the match window is not used for reference picture resampling is obtained. Based on a flag indicating that the match window is not used for resampling the reference image, it is determined whether the size of the resampling image is signaled. Based on the determination that the size of the oversampling image is signaled, an oversampling ratio is determined based on the size of the oversampling image. Based on the determination that the oversampling image size is not signaled, an oversampling ratio is determined based on the output image size. The reference image is resampled for the current image using the resampling factor.
EFFECT: improving the efficiency of video decoding.
10 cl, 11 dwg, 1 tbl
