Anisotropic depth image restoration method fusing bimodal inverse certainty

• Main Authors: SHI JIANJUN, JIANG HUI, CHENG GUOXING, ZHANG ZHENGUO, LI XIN, LI YAN, NI DAWEI
• Format: Patent
• Language: Chinese; English
• Published: 14.07.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention discloses an anisotropic depth image restoration method fusing bimodal inverse certainty. The method comprises the following steps: inputting a color image and an original depth image which are aligned; the color space of the color image is converted from RGB to Lab, and then the Lab image is converted into a grey-scale image; segmenting the original depth image through a triangular threshold method to generate a pseudo background image; performing connected domain analysis on the original depth map, marking connected holes, and obtaining pixel coordinates of invalid points in the corresponding connected holes; processing invalid point pixels in the next communication hole in sequence; evaluating the repair priorities of all invalid points in the current hole based on a score index fused with bimodal inverse certainty; establishing a filling mechanism based on anisotropic cost to repair the invalid point with the highest priority; and outputting a complete depth image until all invalid points ar