US 12,347,070 B2
Processor for electronic endoscope and electronic endoscopic system
Takao Makino, Tokyo (JP)
Assigned to HOYA CORPORATION, Tokyo (JP)
Appl. No. 18/274,914
Filed by HOYA CORPORATION, Tokyo (JP)
PCT Filed Mar. 11, 2022, PCT No. PCT/JP2022/010802
§ 371(c)(1), (2) Date Jul. 28, 2023,
PCT Pub. No. WO2022/209732, PCT Pub. Date Oct. 6, 2022.
Claims priority of application No. 2021-060673 (JP), filed on Mar. 31, 2021.
Prior Publication US 2024/0087090 A1, Mar. 14, 2024
Int. Cl. G06T 7/00 (2017.01); A61B 1/00 (2006.01); G06T 5/00 (2006.01); G06T 7/90 (2017.01)
CPC G06T 5/00 (2013.01) [A61B 1/000095 (2022.02); G06T 7/90 (2017.01); G06T 2207/10024 (2013.01); G06T 2207/10068 (2013.01); G06T 2207/30096 (2013.01); G06T 2207/30101 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A processor for an electronic endoscope that acquires a captured image of a living tissue and performs enhancement processing, the processor comprising:
a region detection unit configured to detect an enhancement processing target region in the captured image of the living tissue from pixel information of the captured image; and
an enhancement processing unit configured to perform enhancement processing on the enhancement processing target region detected by the region detection unit,
wherein the region detection unit detects the enhancement processing target region based on a difference in signal level between a pixel of interest in the captured image and a pixel surrounding the pixel of interest, and
the enhancement processing unit performs the enhancement processing on the enhancement processing target region such that:
enhancement is weakened as the difference in signal level between the pixel of interest in the captured image and the pixel surrounding the pixel of interest is larger, and
the enhancement is strengthened as luminance is higher.