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Non-invasive rapid detection device of aquatic animal morphological feature

A technology for aquatic animals and morphological characteristics, which is used in measurement devices, diagnostic recording/measurement, medical science, etc., and can solve problems such as low efficiency, difficulty in field measurement of aquatic animals, and difficulty in measurement and tracking of aquatic animals.

Inactive Publication Date: 2008-10-22
ZHEJIANG INST OF FRESH WATER FISHERIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many morphological parameters of aquatic animals, and the application of existing traditional ruler measurement methods leads to heavy work and low efficiency, and makes it difficult to measure aquatic animals in the wild; and the long measurement time indoors can easily lead to the Biological death makes it difficult to measure and track aquatic animals

Method used

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  • Non-invasive rapid detection device of aquatic animal morphological feature
  • Non-invasive rapid detection device of aquatic animal morphological feature
  • Non-invasive rapid detection device of aquatic animal morphological feature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: place the red bream to be tested in a place with sufficient light and clear background, place a standard scale beside the red bream, adjust the focal length and exposure intensity of the digital camera, and take clear images; Import the image into the above-mentioned aquatic animal morphological characteristic measurement software FishRuler, such as figure 1 As shown, select 1 cm of the scale in the image as the unit length, and use the built-in distance formula L = ( X 1 - X 2 ) 2 + ( Y 1 - Y 2 ) 2 ...

Embodiment 2

[0039] Example 2: Yu Hua A standard scale was placed next to it, and a clear image was taken with a digital camera; the image was imported into the above-mentioned aquatic animal morphological characteristic measurement software FishRuler, such as figure 2 As shown, select 1 cm of the scale in the image as the unit length, and use the built-in distance formula L = ( X 1 - X 2 ) 2 + ( Y 1 - Y 2 ) 2 Measure the image distance S=19 pixels of the unit length in the image, enter the image distance 19 in the built-i...

Embodiment 3

[0040] Embodiment 3: a standard scale is placed beside the Chinese mitten crab, and a digital camera is adopted to take a clear image; the image is imported into CAD drawing software or Photoshop image processing software, such as image 3 As shown, select 1 centimeter of the scale in the image as the unit length, measure the image distance S=69.0072 pixels of the unit length in the image, and determine the ratio of the unit length of the standard scale to the corresponding image distance as X=1 / 69.0072; In the case of keeping the size of the image unchanged, select 1-middle notch, 2, 3-internal frontal teeth, 4,5-external frontal teeth, 6,7-first Front side teeth, 8, 9-concave bottom of the second front side tooth, 10, 11-concave bottom of the third front side tooth, 12, 13-concave bottom of the fourth front side tooth, 14, 15-body width angle, 16, 17- side trailing edge boundary angle, 18- trailing edge midpoint as measurement fixed point; measured points 14-15, 12-13, 10-1...

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Abstract

An aquatic animal morphological character damage-free rapid measuring method belongs to the technical field of aquatic animal measuring methods, which is characterized in that the method comprises the following steps: a standard graduated scale is laid beside the aquatic animal to be measured and a clear image is shot with a digital camera; the image is led into a computer image processing software to determine the ratio X between the unit length of the standard graduated scale and the correspondent image distance; correspondent frame measuring fixed points are selected on the image profile and the image distance L1 between the points measured is measured according to the measuring requirements of aquatic animal morphological characters of different types when the image size is kept unchangeable; the actual distance L0 between the points measured is calculated according to the computing formula that L0 is equal to X*L1. The measuring method realizes the rapid, accurate and damage-free measurement of the shapes of living aquatic animals, which has important meaning for improving the work efficiency of object aquatic animal morphological research and provides possibility for the measurement and tracing observation of the aquatic animal living body.

Description

technical field [0001] The patent of the invention belongs to the technical field of aquatic animal morphological determination methods, specifically a non-invasive and rapid determination method for aquatic animal morphological characteristics. Background technique [0002] Morphology is one of the most intuitive and obvious traits of aquatic animals. The morphological trait data of aquatic animals (taking tilapia as an example) can generally be divided into two categories: one is traditional morphological data, including countable traits and quantifiable traits. Countable traits include the number of scales on the lateral line, the number of fins, the number of spines, etc.; the quantifiable traits include total length, body length, body height, body thickness, etc. The other type is frame data, which usually select several frame measurement fixed points on the aquatic animal silhouette, and measure the straight-line distance between different fixed points respectively. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/107A61B5/117G01B11/00A61B5/1171
Inventor 杨元杰朱俊杰顾志敏贾永义黄鲜明
Owner ZHEJIANG INST OF FRESH WATER FISHERIES
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