Method and device for detecting feeding state of fishes

A detection method and state technology, applied in the direction of instruments, character and pattern recognition, data processing applications, etc., can solve the problems of large sample size, large error of measurement results, multiple hyperparameters, etc., to achieve accurate judgment results and small sample size Effect

Inactive Publication Date: 2021-02-19
CHINA AGRI UNIV
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  • Application Information

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Problems solved by technology

[0004] In order to solve the technical problems in the prior art that the measurement results of the indirect detection method have large errors and the direct det

Method used

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  • Method and device for detecting feeding state of fishes
  • Method and device for detecting feeding state of fishes
  • Method and device for detecting feeding state of fishes

Examples

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Embodiment 1

[0047] This embodiment provides a method for classifying and detecting fish feeding status based on deep forest. Flowchart such as figure 1 . Specifically include the following steps:

[0048] S1: Take photos of fish schools in different feeding states to obtain multiple fish feeding photos and the feeding status corresponding to each fish feeding photo.

[0049] Specifically, before the experiment, tilapia were raised in 4 feeding ponds for 4 weeks (30 fish per pond, 138 ± 4g each), and the fish were fed with planktonic particles twice a day (8:00 and 16:00). Set at 2% per day. The dissolved oxygen content was maintained within the range of 5.0±1.0mg / L, and the water temperature was maintained at 20-25°C to adapt to the experimental culture environment. 2 days before the experiment, adjust the feeding plan of the fish, so that the fish presents 4 different hunger states (1: the fish is full and will not eat; 2: the fish is in a low hunger state, the fish only eats the foo...

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Abstract

The invention relates to the technical field of aquaculture, in particular to a method for detecting the feeding state of fishes. The detection method comprises the following steps: acquiring texturalfeatures and shape features of fish schools during ingestion; and substituting the textural features and the shape features of the fish shoal during ingestion into a preset depth forest model to obtain the ingestion state of the fish shoal to be detected. According to the method, the texture features and the shape features of the fish schools during ingestion and the corresponding ingestion states are combined to construct the deep forest model, so that the ingestion states of the fish schools can be judged directly through the texture features and the shape features of the ingestion picturesof the fish schools, the accuracy is high and can reach about 95%, and theoretical support and solution are provided for accurate feeding of fishes.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method and device for detecting the feeding state of fish. Background technique [0002] Currently, the development of intensive aquaculture has led to an increase in the proportion of feed in the total cost. Therefore, underfeeding or overfeeding during the production process will affect the normal growth of fish. Insufficient feeding will lead to the weight loss of fish and the decline of economic benefits. Overfeeding will lead to loss of economic benefits, and uneaten feed will also pollute the environment and cause eutrophication of water bodies. Therefore, in the recirculating aquaculture system, higher requirements are put forward for the control of precise feeding of fish. [0003] In the prior art, research on fish feeding behavior mainly includes two types of methods, indirect detection and direct detection. The indirect detection method is to estimate the fee...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/46G06K9/62G06Q50/02
CPCG06Q50/02G06V20/20G06V10/40G06F18/22G06F18/24323G06F18/214
Inventor 刘春红孔庆辰叶荣珂李道亮陈英义段青玲张玉泉蔡振鑫
Owner CHINA AGRI UNIV
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