Patent ID: 11881005
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 4:
5. The image processing device according to claim 3, wherein the contour correction unit is configured to set a region as the background region when the difference of each pixel of the second invisible light image is less than a first threshold (where the first threshold is less than the predetermined threshold), set a pixel as a boundary pixel when the difference is at least the first threshold and not more than a second threshold (where the first threshold is less than the predetermined threshold, which is less than the second threshold), set a region as the subject region when the difference is greater than the second threshold, reclassify only the boundary pixel to the subject region or the background region using the second visible light image, and correct a contour of the subject region.