Method for estimating body length and body weight based on prawn eyeball diameter

An eyeball and prawn technology, applied in the field of marine life, can solve problems such as large measurement error, achieve the effects of small measurement error, automatic monitoring, and easy computer image recognition

Inactive Publication Date: 2019-09-10
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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Problems solved by technology

[0011] In order to solve the problems that the measurement error is large when measuring the body length data of prawns, and the body length data is not easy to obtain through machine vision recognition in a weak light environment, the present invention provides a method for estimating the body length and weight of prawns by using the eyeball diameter

Method used

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  • Method for estimating body length and body weight based on prawn eyeball diameter
  • Method for estimating body length and body weight based on prawn eyeball diameter
  • Method for estimating body length and body weight based on prawn eyeball diameter

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Experimental program
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Embodiment Construction

[0045] 1. Obtaining the fitting relationship between eyeball diameter and body length and body weight of Litopenaeus vannamei

[0046] At different growth stages of prawns, a total of 300 prawn samples were collected. The body length of prawns was measured with a vernier caliper with a measurement accuracy of 0.02mm. The body length of Litopenaeus vannamei was measured from 19.12mm to 161.3mm; The body weight of Litopenaeus vannamei was 0.001g, and the weight range of Litopenaeus vannamei was 0.084g-53.034g.

[0047] The eyeball images of the prawns were obtained by taking pictures, and the diameter of the eyeballs of the prawns was measured by computer software. Such as figure 1 As shown, when shooting, the prawns are placed under the dissecting microscope, the body of the prawns is straightened to avoid bending, the back of the prawns is facing upwards, and the shooting is taken from a top-down angle, and a measuring ruler is placed during the shooting process;

[0048] Us...

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Abstract

The invention provides a method for estimating a body length and a body weight based on a prawn eyeball diameter. The method comprises the steps of: collecting a prawn eyeball image, accurately obtaining prawn eyeball diameter data by using software analysis, and accurately judging the body length and body weight data of a prawn body according to the eyeball diameter and a body length and body weight fitting model. A correlation coefficient between the measured prawn eyeball diameter and the body weight is equivalent to the correlation coefficient of body length and body weight, furthermore, the prawn eyeball can perform autofluorescence under low light conditions, which is convenient for computer image recognition, and automatic monitoring is achieved.

Description

Background technique [0001] The invention belongs to a method for estimating biomorphological indicators in the field of marine biology technology and a method for pattern recognition in the field of information technology, in particular to a method for estimating the body length and body weight of Litopenaeus vannamei by eyeball diameter cultivated in circulating water. [0002] Litopeneus vannamei, also known as Penaeus vannamei, is a warm-water economic shrimp species native to the Pacific coast waters from northern Peru to Sanora, Mexico. In the process of recirculating aquaculture, it is necessary to ensure sufficient bait feeding, but also to avoid the deterioration of aquaculture water quality caused by excessive feeding of bait. Therefore, it is necessary to accurately calculate the biomass in the aquaculture system and perform precise feeding to save feed costs and reduce the water treatment load of the aquaculture system. In order to build an automatic discriminatio...

Claims

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Application Information

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IPC IPC(8): G01B11/08G01B11/02G01G17/00A01K61/59
CPCA01K61/59G01B11/02G01B11/08G01G17/00Y02A40/81
Inventor 孙建明邱天龙杜以帅周利陈福迪徐建平吴斌
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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