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Fish, shrimp and crab seed automatic counting device and method based on computer video processing

A video processing and automatic counting technology, which is applied in fish farming, applications, climate change adaptation, etc., can solve problems such as being easily affected by changes in external light, relatively high requirements for device sealing, and inaccurate counting results, etc., to promote The effects of automation and precision, reduction of labor consumption, and simple structure

Inactive Publication Date: 2014-01-29
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology needs to first establish a fitting relationship through several sets of grayscale data of a known number of fry and the number of fry, and as the species and emergence period of the fry are different, the fitting relationship must be made in advance every time, which is troublesome to operate , and the grayscale data that determines the number of fry is also easily affected by changes in external light, resulting in inaccurate counting results
[0005] The Chinese patent name is automatic counting device for fish fry (application number is CN201010542654.9) discloses an automatic counting device for fry. Installed on the impeller shaft to form the impeller, the impeller shaft is connected with an intermittent rotation drive mechanism, and the disc is divided into the seedling entry area, the camera area and the seedling emergence area through the blades. This technology uses the continuous rotation of the impeller to divide the water body containing the fry Move through the camera area frame by frame to achieve continuous counting batch by batch. However, the technical device is complicated, and the sealing performance of the device is relatively high. During the counting process, it is easy to cause high-density fry hypoxia

Method used

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  • Fish, shrimp and crab seed automatic counting device and method based on computer video processing
  • Fish, shrimp and crab seed automatic counting device and method based on computer video processing

Examples

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specific Embodiment 1

[0026] The present invention is a kind of automatic counting device for fish, shrimp and crab seedlings based on computer video processing for counting the number of seedlings in a certain volume of water, such as figure 1 As shown, it includes a seedling body outflow water tank 1 for providing a constant water flow, a counting overflow box 2, a camera 3 for collecting images, a computer 4 for data processing and a backlight 5, and a seedling body outflow water tank 1 The pipeline 6 communicates with the counting overcurrent box 2, the camera 3 is positioned above the counting overcurrent box 2, the backlight 5 is positioned at the bottom of the counting overcurrent box 2, and the camera 3 is connected to the data interface of the computer 4 through a data transmission line.

[0027] In this specific embodiment, the seedling body outflow water tank 1 (a nearly constant outflow water tank for placing seedlings to provide a stable water flow for seedling body overcurrent counting)...

specific Embodiment 2

[0032] The present invention is a kind of automatic counting device for fish, shrimp and crab seedlings based on computer video processing for counting seedlings in the continuously flowing water body, such as figure 2 As shown, it includes a seedling body outflow water tank 1 for providing a constant water flow, a counting overflow box 2, a camera 3 for collecting images, a computer 4 for data processing and a backlight 5, and a seedling body outflow water tank 1 The pipeline 6 communicates with the counting overcurrent box 2, the camera 3 is positioned above the counting overcurrent box 2, the backlight 5 is positioned at the bottom of the counting overcurrent box 2, and the camera 3 is connected to the data interface of the computer 4 through a data transmission line.

[0033] In this specific embodiment, the seedling body outflow water tank 1 adopts a container with an upper end opening, and the container includes a seedling body inflow pipe 15, a steady flow outlet port 1...

specific Embodiment 3

[0038] A kind of automatic counting method of fish, shrimp and crab larvae based on computer video processing of the present invention, such as figure 1 or figure 2 As shown, it specifically includes the following steps:

[0039] (1) Put the seedlings of fish, shrimp and crab into the seedling outflow tank 1, and flow into the counting overflow tank 2 with the water flow at a constant flow rate, and use the camera 3 to shoot the seedlings flowing through the counting overflow tank 2, and obtain video images;

[0040] (2) Send the video image obtained in step (1) to the computer 4 through the data transmission line, and preprocess the video image through computer image processing technology to remove interference and noise;

[0041] (3) Use image threshold segmentation technology to convert the grayscale image of the video image processed in step (2) into a binary image, and then perform filtering and morphological processing to remove granular noise;

[0042] (4) Fill the...

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Abstract

The invention discloses a fish, shrimp and crab seed automatic counting device based on computer video processing and a fish, shrimp and crab seed automatic counting method based on computer video processing. The invention is characterized in that the device comprises a seed body outflow water tank, a counting through tank body, a camera, a backlight source and a computer; wherein the seed body outflow water tank is communicated with the counting through tank body; the camera and the backlight source are positioned above and below the counting through tank body respectively; and the camera is connected with the computer. A counting process comprises the following steps of: pouring a water body containing fish, shrimp and crab seeds into the seed body outflow water tank; allowing the water body to flow into the counting through tank body at a constant flow rate; shooting the seeds with the camera and acquiring video images; preprocessing the video images via computer image processing technologies; working out the number of seeds M in every frame of image; multiplying the number of seeds M in every frame of image by a corresponding weighting coefficient r; and working out the total number of fish, shrimp and crab seeds through accumulation. Parameters such as the size of a single seed body can also be obtained. The device and the method have the advantage that the aim of counting the number of seed bodies accurately, quickly, conveniently and timely is fulfilled.

Description

technical field [0001] The invention relates to an automatic counting device for fish, shrimp and crab fry, in particular to an automatic counting device for fish, shrimp and crab fry based on computer video processing and a method thereof. Background technique [0002] With the continuous expansion of the scale of aquaculture production, it is necessary to count fish, shrimp, and crab seedlings in its nursery, feeding, transportation, and sales. It is necessary to control the breeding density, calculate the survival rate and sell seedlings according to the number of fish, shrimp, and crab seedlings. Wait. The number of seedlings released is an important parameter in the growing marine ranching and release. At present, the counting system of aquatic seed in our country is not mature enough, and manual counting is generally used to count, but this method is time-consuming and labor-intensive, and the accuracy cannot be guaranteed. Weighing methods can cause stress and damag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00G06M15/00
CPCY02A40/81
Inventor 徐建瑜王文静王春琳蒋霞敏
Owner NINGBO UNIV
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