US 11,701,032 B2
Electronic endoscope processor and electronic endoscopic system
Takao Makino, Tokyo (JP); and Yousuke Ikemoto, Tokyo (JP)
Assigned to HOYA CORPORATION, Tokyo (JP)
Filed by HOYA CORPORATION, Tokyo (JP)
Filed on Jun. 7, 2022, as Appl. No. 17/834,098.
Application 17/834,098 is a continuation of application No. 16/308,451, granted, now 11,589,777, previously published as PCT/JP2017/031123, filed on Aug. 30, 2017.
Claims priority of application No. 2016-169231 (JP), filed on Aug. 31, 2016.
Prior Publication US 2022/0296123 A1, Sep. 22, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 5/103 (2006.01); A61B 1/045 (2006.01); A61B 5/00 (2006.01); G06T 1/00 (2006.01); G06T 1/60 (2006.01); A61B 1/00 (2006.01); G06V 10/75 (2022.01); H04N 7/18 (2006.01)
CPC A61B 5/1032 (2013.01) [A61B 1/00009 (2013.01); A61B 1/045 (2013.01); A61B 5/00 (2013.01); A61B 5/7425 (2013.01); G06T 1/00 (2013.01); G06T 1/60 (2013.01); G06V 10/751 (2022.01); H04N 7/18 (2013.01)] 5 Claims
OG exemplary drawing
 
1. An electronic endoscope processor comprising:
a converting means for converting each piece of pixel data that is made up of n types of color components and constitutes a color image of a biological tissue in a body cavity into a piece of pixel data that is made up of m types of color components, n being a natural number greater than or equal to 3, m being a natural number greater than or equal to 2, and m being smaller than n;
an evaluation value calculating means for calculating, in units of pixels of the color image, an evaluation value related to a target illness based on the converted pieces of pixel data that are made up of m types of color components; and
a lesion index calculating means for calculating a lesion index for each of a plurality of types of lesions related to the target illness based on evaluation values calculated for the pixels of the color image,
wherein the evaluation value calculating means is for setting a reference direction that is related to the target illness and extends from a predetermined reference point in a color space defined by the m types of color components and, for each pixel of the color image, for calculating the evaluation value related to the target illness based on an extent to which a direction from the reference point to a pixel correspondence point corresponding to the converted piece of pixel data in the color space deviates from the reference direction.