Endoscope apparatus, endoscope operation method, and program

1. An endoscope apparatus comprising:

a display; and

one or more processors, configured to:

acquire, in a case where a lesion is detected from time-series images captured during an endoscopic examination period, acquired lesion information that indicates at least one of a first lesion image representing the detected lesion or a feature value indicating a feature of the first lesion image;

compare an existing feature value indicating a feature of a second lesion image in existing lesion information, which is the acquired lesion information previously, with the feature value that indicates the feature of the first lesion image in a newly acquired lesion information and determine whether the newly acquired lesion information indicates the same lesion indicated by the existing lesion information on basis of whether a similarity between the existing feature value and the feature value is equal to or higher than a threshold value;

count a lesion count, which is the number of lesions detected in a single endoscopic examination;

control the display to display the lesion count; and

increment the lesion count by one when the one or more processors determines that the newly acquired lesion information does not indicate the same lesion indicated by the existing lesion information.

2. The endoscope apparatus according to claim 1 , wherein the one or more processors is further configured to:

output a division instruction for dividing the endoscopic examination into a first examination and a second examination; and

count a lesion count in the first examination and a lesion count in the second examination separately on the basis of the division instruction.

3. The endoscope apparatus according to claim 2 , wherein

in the division instruction, the first examination is an examination that is performed at the time of insertion of a scope, and the second examination is an examination that is performed at the time of withdrawal of the scope.

4. The endoscope apparatus according to claim 3 , wherein the one or more processors is configured to

display the lesion count together with an image showing the endoscopic examination that is ongoing.

5. The endoscope apparatus according to claim 2 , wherein the one or more processors is configured to

output the division instruction on the basis of a user instruction.

6. The endoscope apparatus according to claim 5 , wherein the one or more processors is configured to

display the lesion count together with an image showing the endoscopic examination that is ongoing.

7. The endoscope apparatus according to claim 2 , wherein the one or more processors is configured to

automatically output the division instruction.

8. The endoscope apparatus according to claim 7 , wherein the one or more processors is configured to

display the lesion count together with an image showing the endoscopic examination that is ongoing.

9. The endoscope apparatus according to claim 2 , wherein the one or more processors is configured to

display the lesion count together with an image showing the endoscopic examination that is ongoing.

10. The endoscope apparatus according to claim 2 , wherein the one or more processors is configured to

display the lesion count in the first examination and the lesion count in the second examination.

11. The endoscope apparatus according to claim 1 , wherein the one or more processors is configured to

display the lesion count together with an image showing the endoscopic examination that is ongoing.

12. The endoscope apparatus according to claim 1 , wherein

the existing lesion information has the second lesion image corresponding to the first lesion image, and the one or more processors is configured to

display the lesion count together with the second lesion image.

13. The endoscope apparatus according to claim 1 , wherein the one or more processors is further configured to

save the existing lesion information,

compare the existing lesion information saved with the acquired lesion information newly and determine whether the newly acquired lesion information indicates the same lesion indicated by the existing lesion information.

14. The endoscope apparatus according to claim 13 , wherein the one or more processors is configured to

save all or some of pieces of acquired lesion information acquired as pieces of existing lesion information.

15. An endoscope apparatus comprising one or more processors, configured to:

acquire, in a case where a lesion is detected from time-series images captured during an endoscopic examination period, acquired lesion information that indicates at least one of a first lesion image representing the detected lesion or a feature value indicating a feature of the first lesion image;

identify a lesion from the time-series images;

count a lesion count, which is the number of lesions detected in a single endoscopic examination;

display the lesion count counted;

output a division instruction for dividing the endoscopic examination into a first examination that is performed at the time of insertion of a scope and a second examination that is performed at the time of withdrawal of the scope;

in the first examination,

compare existing lesion information, which is the acquired lesion information previously, with the a newly acquired lesion information and determine whether the newly acquired lesion information indicates the same lesion indicated by the existing lesion information, and

increment the lesion count counted by one when the one or more processors determines that the newly acquired lesion information does not indicate the same lesion indicated by the existing lesion information, and

in the second examination that follows the first examination,

compare the existing lesion information previously acquired in the first examination with the acquired lesion information newly acquired in the second examination and determine whether the newly acquired lesion information indicates the same lesion indicated by the existing lesion information previously acquired in the first examination,

decrement a remaining lesion count by one to update the remaining lesion count, the remaining lesion count being the lesion count when the first examination is completed, in a case where the one or more processors determines that the newly acquired lesion information indicates the same lesion indicated by the existing lesion information previously acquired in the first examination, and

display the remaining lesion count on the basis of the remaining lesion count.

16. The endoscope apparatus according to claim 15 , wherein

in a case where the one or more processors determines that the newly acquired lesion information does not indicate the same lesion indicated by the existing lesion information in the first examination, the one or more processors do a count as a new lesion count in the second examination, and

display the new lesion count.

17. The endoscope apparatus according to claim 16 , wherein the one or more processors is configured to

display the lesion count together with an image showing the endoscopic examination that is ongoing.

18. The endoscope apparatus according to claim 15 , wherein the one or more processors is configured to

display the lesion count together with an image showing the endoscopic examination that is ongoing.

19. An endoscope operation method comprising:

acquiring, in a case where a lesion is detected from time-series images captured during an endoscopic examination period, acquired lesion information that indicates at least one of a first lesion image representing the detected lesion or a feature value indicating a feature of the first lesion image;

comparing an existing feature value indicating a feature of a second lesion image in existing lesion information, which is the acquired lesion information previously, with the feature value that indicates the feature of the first lesion image in a newly acquired lesion information and determining whether the newly acquired lesion information indicates the same lesion indicated by the existing lesion information on basis of whether a similarity between the existing feature value and the feature value is equal to or higher than a threshold value;

counting a lesion count, which is the number of lesions detected in a single endoscopic examination;

controlling to display the lesion count; and

incrementing the lesion count by one when determining that the newly acquired lesion information does not indicate the same lesion indicated by the existing lesion information.

20. A non-transitory computer readable recording medium storing a program causing a computer to perform an endoscope operation process comprising:

acquiring, in a case where a lesion is detected from time-series images captured during an endoscopic examination period, acquired lesion information that indicates at least one of a first lesion image representing the detected lesion or a feature value indicating a feature of the first lesion image;

comparing an existing feature value indicating a feature of a second lesion image in existing lesion information, which is the acquired lesion information previously, with the feature value that indicates the feature of the first lesion image in a newly acquired lesion information and determining whether the newly acquired lesion information indicates the same lesion indicated by the existing lesion information on basis of whether a similarity between the existing feature value and the feature value is equal to or higher than a threshold value;

counting a lesion count, which is the number of lesions detected in a single endoscopic examination;

controlling to display the lesion count; and

incrementing the lesion count by one when determining that the newly acquired lesion information does not correspond to the same lesion indicated by the existing lesion information.