Fish counting system, fish counting method, and program

Patent metadata

Field	Value
Publication number	US-12268196-B2
Application number	US-202017764031-A
Country	US
Kind code	B2
Filing date	Sep 15, 2020
Priority date	Sep 27, 2019
Publication date	Apr 8, 2025
Grant date	Apr 8, 2025

Abstract

A fish counting system has: an image acquisition unit for acquiring a plurality of images wherein a fluid containing fish is imaged over time; a counting unit for counting the fish on the basis of the plurality of images; a fish count change display provision unit for providing a fish count change display, wherein a display corresponding to the number of fish counted per unit time is arranged in a time-series manner; a result provision unit for providing a counting result display wherein an image to which count completion marks indicating a counted fish have been added; and a correction unit for receiving a correction operation and correcting the number of fish.

First claim

The invention claimed is:

1. A fish counting system comprising:
an image acquisition unit configured to acquire a plurality of images of a fluid including fish captured over time;
a counting unit configured to count a number of fish in the fluid based on the plurality of images;
a fish count change display provision unit configured to provide a fish count change display in which an indication corresponding to a rate at which the number of fish are counted per unit time is arranged in a time series;
a result provision unit configured to provide a counting result display including an image with a count completion mark indicating a counted fish; and
a correction unit configured to accept a correction operation and corrects the number of fish.

2. The fish counting system according to claim 1 , wherein the fish count change display has a graph indication having a first axis extending horizontally or vertically corresponding to the rate at which the number of fish are counted per unit time and a second axis that is orthogonal to the first axis and that corresponds to a passage of time.

3. The fish counting system according to claim 1 , wherein:
the result provision unit is further configured to provide, together with an image with a count completion mark indicating a counted fish, an addition instruction indication and a subtraction instruction indication for instructing a correction of the number of fish, and
the correction unit is further configured to correct the number of fish in response to an operation to the addition instruction indication or the subtraction instruction indication.

4. The fish counting system according to claim 1 , wherein:
the correction unit corrects the number of fish when accepting a correction operation that involves specifying a position of a fish to be corrected in the image, and
the result provision unit provides an image with a manual correction mark indicating the fish to be corrected specified in the correction operation.

5. The fish counting system according to claim 1 , wherein the fish count change display has a correction time point indication indicating a time point when the number of fish is corrected.

6. A fish counting system according to claim 1 , comprising:
a storage unit configured to store automatic counting data representing the number of fish counted by the counting unit and manual correction data that is different from the automatic counting data and that represents the number of fish corrected by the correction unit, and
wherein the correction unit is further configured to change the manual correction data without changing the automatic counting data.

7. The fish counting system according to claim 1 , further comprising:
a disturbance detection unit configured to detect a disturbance based on the image acquired by the image acquisition unit, and
wherein the fish count change display has a marking indication indicating a time point when the disturbance detection unit detects the disturbance.

8. The fish counting system according to claim 7 , wherein the fish count change display includes a disturbance content display indicating detected content of the disturbance.

9. A fish counting method comprising:
acquiring a plurality of images of a fluid including fish captured over time;
counting a number of fish in the fluid based on the plurality of images;
providing a fish count change display in which an indication corresponding to a rate at which the number of fish are counted per unit time is arranged in a time series;
providing a counting result display including an image with a count completion mark indicating a counted fish; and
accepting a correction operation and correcting the number of fish.

10. A non-transitory, computer-readable medium storing instructions, which when executed by one or more processors, causes the one or more processors to perform the fish counting method according to claim 9 .

11. The fish counting system according to claim 2 , wherein:
the result provision unit is further configured to provide, together with an image with a count completion mark indicating a counted fish, an addition instruction indication and a subtraction instruction indication for instructing a correction of the number of fish, and
the correction unit is further configured to correct the number of fish in response to an operation to the addition instruction indication or the subtraction instruction indication.

Assignees

• Yanmar Power Technology Co Ltd

Inventors

• Ueda Yasuhiro
• Dake Yuichiro
• Sakai Toshiaki
• Tani Makoto

Classifications

• G06T2207/30242

  Counting objects in image · CPC title

• G06T1/0007

  Image acquisition · CPC title

• G06V20/52

  Surveillance or monitoring of activities, e.g. for recognising suspicious objects (recognising microscopic objects G06V20/69) · CPC title

• G06V40/10

  Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands · CPC title

• G06V20/05

  Underwater scenes · CPC title