US 11,758,290 B2
Image processing device, image processing method, and image pickup device
Yasutaka Hirasawa, Tokyo (JP); Yuhi Kondo, Tokyo (JP); Legong Sun, Tokyo (JP); and Taishi Ono, Kanagawa (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/789,406
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Dec. 18, 2020, PCT No. PCT/JP2020/047434
§ 371(c)(1), (2) Date Jun. 27, 2022,
PCT Pub. No. WO2021/140873, PCT Pub. Date Jul. 15, 2021.
Claims priority of application No. 2020-002033 (JP), filed on Jan. 9, 2020.
Prior Publication US 2023/0053038 A1, Feb. 16, 2023
Int. Cl. H04N 25/633 (2023.01); H04N 25/77 (2023.01); H04N 23/84 (2023.01)
CPC H04N 23/843 (2023.01) [H04N 25/633 (2023.01); H04N 25/77 (2023.01)] 12 Claims
OG exemplary drawing
 
1. An image processing device comprising:
an invalid pixel detection unit that detects a saturated pixel and a black-crushed pixel as invalid pixels from a non-polarized image and a plurality of polarized images for different polarization directions obtained by performing image pickup using a polarization image pickup device; and
a polarization information generation unit that performs processing of generating polarization information on a basis of the non-polarized image and the polarized images, and switches processing of generating the polarization information depending on a detection result of the invalid pixels in the invalid pixel detection unit,
wherein the invalid pixel detection unit detects a pixel having a pixel value larger than a preset saturation detection threshold as the saturated pixel, and
wherein the invalid pixel detection unit and the polarization information generation unit are each implemented via at least one processor.