US 12,034,900 B2
Image processing system, image processing method, and non-transitory computer readable medium for generating a colorized image
Takahiro Toizumi, Tokyo (JP); Masato Tsukada, Tokyo (JP); and Chisato Funayama, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 17/795,678
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Feb. 13, 2020, PCT No. PCT/JP2020/005562
§ 371(c)(1), (2) Date Jul. 27, 2022,
PCT Pub. No. WO2021/161453, PCT Pub. Date Aug. 19, 2021.
Prior Publication US 2023/0059407 A1, Feb. 23, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06T 7/90 (2017.01); G06N 20/00 (2019.01); G06V 10/74 (2022.01); G09G 5/06 (2006.01); H04N 1/46 (2006.01)
CPC H04N 1/465 (2013.01) [G06N 20/00 (2019.01); G06T 7/90 (2017.01); G06V 10/761 (2022.01); G06T 2207/10024 (2013.01); G06T 2207/20081 (2013.01); G09G 5/06 (2013.01)] 8 Claims
OG exemplary drawing
 
1. An image processing system comprising:
at least one memory storing instructions, and
at least one processor configured to execute the instructions to:
acquire a monochrome image including a target part;
acquire a category of the target part and a first color hint indicating a color of the target part;
convert the first color hint into a second color hint indicating the color of the target part based on the acquired category;
generate a colorized image corresponding to the monochrome image from the monochrome image and the second color hint of the target part by using a prediction model trained by machine learning;
adjust color space coordinates of the converted second color hint based on a distance between the color space coordinates of the converted second color hint and color space coordinates of the first color hint; and
generate the colorized image corresponding to the monochrome image based on the adjusted second color hint.