Patent ID: 10846826

Abstract:
An input image information generation processing section 21 generates depth distribution feature information in accordance with the pixel value and depth value of a pixel in a peripheral region with respect to a pixel of interest of an input image. A previous image information generation processing section 24 regards the pixel position of a pixel of interest in a previous image, which is an image earlier than the input guide image, as a corresponding pixel, and generates depth distribution feature information in accordance with the pixel value of the pixel of interest and the pixel value and depth value of a pixel in a previous image peripheral region with respect to the corresponding pixel. A merge control section 25 sets a merge ratio in accordance with the amount of pixel information difference between the pixel of interest and the corresponding pixel. A depth value setting section 26 merges the depth distribution feature information generated by the input image information generation processing section 21 with the depth distribution feature information generated by the previous image information generation processing section 24 at the merge ratio set by the merge control section 25, calculates a representative depth value from the merged depth distribution feature information, and regards the calculated representative depth value as the depth value of the pixel of interest. Spatiotemporal stability of a depth image can be improved.