US 12,336,834 B2
Examination device, endoscope system, and examination method
Erika Yanagihara, Chofu (JP); and Ryosuke Sakurai, Tachikawa (JP)
Assigned to OLYMPUS CORPORATION, Tokyo (JP)
Filed by OLYMPUS CORPORATION, Tokyo (JP)
Filed on Jan. 9, 2023, as Appl. No. 18/094,508.
Application 18/094,508 is a continuation of application No. PCT/JP2020/027360, filed on Jul. 14, 2020.
Prior Publication US 2023/0157623 A1, May 25, 2023
Int. Cl. A61B 5/00 (2006.01); A61B 1/273 (2006.01); A61B 5/103 (2006.01); G06T 7/00 (2017.01)
CPC A61B 5/4205 (2013.01) [A61B 1/2733 (2013.01); A61B 5/1032 (2013.01); A61B 5/742 (2013.01); A61B 5/749 (2013.01); G06T 7/0012 (2013.01); G06T 2207/10016 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/10068 (2013.01); G06T 2207/30004 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An examination device comprising:
a processor comprising hardware, wherein the processor is configured to:
receive input signal over time;
receive image signal of a plurality of images captured by an endoscope over time;
process the plurality of images to detect an image of the plurality of images having at least a predetermined number of pixels having a red hue as an examination position image captured by the endoscope at a predetermined examination position;
after detecting the examination position image, perform at least two of:
process the input signal to detect a swallowing instruction timing at which a swallowing instruction is captured;
process the plurality of images to detect an inflow timing at which an image of the plurality of images having pixels that cover at least a predetermined area having a color influenced by a color of an inflow object during a swallowing action is captured; and
process the plurality of images to detect a swallowing reflex triggering timing, occurring after the inflow timing, at which a white-out image of the plurality of images having an average pixel value that is at least a predetermined brightness and/or having a number of edge portions that is equal to or less than a predetermined threshold is captured.