US 12,260,602 B2
Image processing method, program, and image processing device
Iwao Kubota, Chofu (JP)
Appl. No. 17/783,010
Filed by ARS TECHNE CORPORATION, Chofu (JP); and Iwao Kubota, Chofu (JP)
PCT Filed Dec. 9, 2019, PCT No. PCT/JP2019/048120
§ 371(c)(1), (2) Date Jun. 7, 2022,
PCT Pub. No. WO2021/117099, PCT Pub. Date Jun. 17, 2021.
Prior Publication US 2023/0027047 A1, Jan. 26, 2023
Int. Cl. G06V 10/141 (2022.01); G06T 5/50 (2006.01); G06T 5/94 (2024.01); G06T 17/05 (2011.01)
CPC G06V 10/141 (2022.01) [G06T 5/50 (2013.01); G06T 5/94 (2024.01); G06T 17/05 (2013.01); G06T 2207/10152 (2013.01); G06T 2207/20221 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An image processing method comprising:
preparing a picture to be converted into data, a light source for irradiating the picture with light, and an image capture device for capturing an image of the picture;
installing the image capture device at a position where an optical axis of the image capture device and a normal line of the picture have a predetermined relationship;
obtaining an image I[0,0] of the picture captured by the image capture device, in a state where the light is irradiated to the picture from the light source at a reference position relative to the normal line of the picture;
obtaining an image I[α1,0] of the picture captured by the image capture device, in a state where the light is irradiated to the picture from the light source at a position inclined from the reference position at an angle α1 in a first direction;
obtaining an image I[0, β1] of the picture captured by the image capture device, in a state where the light is irradiated to the picture from the light source at a position inclined from the reference position at an angle β1 in a second direction different from the first direction;
obtaining an image I[0, β2] of the picture captured by the image capture device, in a state where the light is irradiated to the picture from the light source at a position inclined from the reference position at an angle β2 in the second direction;
creating a three-dimensional map of the picture, using a set of the images I[0, β1] and I[0, β2];
merging at least a part of each of the image I[α1,0], the image I[0,β1], and the image I[0,β2] with respect to the image I[0,0], to generate a merged image;
performing an emphasizing process to emphasize a shadow of the merged image in accordance with a height indicated by the three-dimensional map to generate an emphasized image; and
recording, as two-dimensional image data, the emphasized image.