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Outline-based recognition method for pig drinking behavior

A recognition method and outline technology, applied in character and pattern recognition, instruments, calculations, etc.

Active Publication Date: 2020-06-26
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the behavior recognition of individual pigs, ear tag RFID is widely used at present. At this stage, there are few related reports on the use of computer vision technology to monitor pig drinking behavior. Considering the application of machine vision algorithms in other behaviors of pigs, drinking water Behavior recognition has become a development trend

Method used

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  • Outline-based recognition method for pig drinking behavior
  • Outline-based recognition method for pig drinking behavior
  • Outline-based recognition method for pig drinking behavior

Examples

Experimental program
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Embodiment Construction

[0044] The specific implementation of each part involved will be further described below in conjunction with this figure.

[0045] figure 1 It is a flowchart of pig drinking behavior recognition. The purpose of drinking water area extraction and contour extraction is to obtain the contour of pigs in this area; the contour polygon approximation method completes the polygon fitting of the contour; contour feature extraction uses angle and distance to construct two-dimensional feature quantities ; The similarity calculation uses the Hungarian algorithm for optimal matching, and by calculating the similarity between two polygons, the matching between the contour to be recognized and the contour of the training sample is completed; finally, the pig drinking behavior recognition method based on machine vision can be realized.

[0046] Step 1: Obtain the video of pigs raised in groups under the overlooking state, and then perform image preprocessing, mainly the extraction of individu...

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Abstract

The invention discloses a contour-based recognition method for pig drinking behavior. Firstly, the drinking water area is separated from the collected overhead video frame of group pigs, and the preliminary segmentation result is obtained by using the two-dimensional OTSU method, and the result is binarized and morphologically processed to obtain the target contour; then the polygon approximation method is used Get the polygon fitting diagram of the contour, and extract the two-dimensional feature quantity with scale invariance and rotation invariance for the polygon; then use the Hungarian algorithm to optimally match the relevant feature quantities of the two polygons; finally calculate the relationship between the two polygons The similarity between the contours to be recognized and the contours of the training samples is matched to realize the recognition of the drinking behavior of pigs. This method lays the foundation for the future research on the recognition of behaviors such as feeding and defecation of group-raised pigs, and also provides a new idea for exploring the behavior recognition methods of animal husbandry.

Description

technical field [0001] The invention relates to machine vision technology and pattern recognition technology, in particular to a method for recognizing drinking behavior of pigs in a monitoring video of group pig raising under a bird's-eye view state. Background technique [0002] With the gradual introduction of agricultural reform and modern pig raising technology, the pig farming industry has improved in terms of scale and intelligence. It has become more and more important to explore the individual behavior of pigs in the video sequence of group pig raising based on machine vision. It has attracted the attention of scholars at home and abroad. For the behavior recognition of individual pigs, ear tag RFID is widely used at present. At this stage, there are few related reports on the use of computer vision technology to monitor pig drinking behavior. Considering the application of machine vision algorithms in other behaviors of pigs, drinking water Behavior recognition ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/62
CPCG06V20/52G06F18/22G06F18/2411
Inventor 朱伟兴谭辉磊李新城
Owner JIANGSU UNIV
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