Underwater fish size detection system based on double cameras
A size detection and dual-camera technology, applied in the field of underwater fish size detection system, can solve the problems of long processing time, affecting fish growth, damage, etc.
Active Publication Date: 2021-08-31
青岛科美创视智能科技有限公司
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Problems solved by technology
[0007] 2) Affect fish growth
[0008] The motor makes noise during operation and the ultrasonic sensor can cause stress and physical damage to the fish
[0009] 3) large error
[0010] During the shooting process, the fish is in a state of free movement, and its posture will be bent to varying degrees, which will have a great impact on the detection results
[0011] 4) Long processing time
[0012] Binocular ranging requires camera calibration, and the pre-processing takes a long time
Method used
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[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0040] The embodiment of the present invention discloses a dual-camera-based underwater fish size detection system, such as figure 1 As shown, including the detection box 1, the detection box 1 can be set as a cuboid, and the cuboid is designed as a strip-shaped box suitable for the size of the fish. The purpose is to effectively correct the posture of the live fish after entering the detection device, and ensure that the fish body It is perpendicular to the c...
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The invention discloses an underwater fish size detection system based on double cameras. The system comprises a detection box, the front and rear end faces of the detection box are provided with open type opening devices, the center in the detection box is provided with a photoelectric switch, the left and right sides of the detection box are symmetrically provided with industrial cameras, and the industrial cameras and the photoelectric switch are connected with an industrial personal computer; a visual analysis module and an algorithm processing module are arranged in the industrial personal computer, and the visual analysis module is used for performing visual analysis on images shot by the industrial camera to obtain fish contours; and the algorithm processing module is used for calculating the fish contour information after visual processing to obtain the real size of the fish. The device is simple in structure, easy to implement, accurate in measurement, small in error and free of calibration in the earlier stage, and has no adverse effect on the growth environment of fishes and fish schools.
Description
technical field [0001] The invention relates to the technical field of machine vision, and more specifically relates to a dual-camera-based underwater fish size detection system. Background technique [0002] At present, in the detection system of the underwater size of live fish based on machine vision, the detection device generally uses equipment such as a motor to control the action of the detection device. For example, use the controller to control the motor to drive the slide rail, so that the waterproof camera installed on the slide rail moves up and down to take pictures at different positions. [0003] Or use an ultrasonic sensor. When a fish is detected to swim into a certain box of the detection box, the second ultrasonic detection is turned on. When a fish tail is detected, the entrance door is closed, and the length of the live fish is detected by ultrasonic waves. Use the eye camera to measure the width of the fish. [0004] There is following shortcoming in ...
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IPC IPC(8): G01B11/00G01B11/24
CPCG01B11/00G01B11/24Y02A40/81
Inventor 江毅然于忠达董婷
Owner 青岛科美创视智能科技有限公司