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Method for indentifying pig walking postures based on ellipse fitting

A technology of ellipse fitting and recognition method, which is applied in character and pattern recognition, instruments, computer parts, etc., and can solve problems affecting the health of staff, inaccurate information, omissions, etc.

Inactive Publication Date: 2012-06-27
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using manual observation and manual recording, on the one hand, the labor intensity of the observers is high, and the working environment is poor. Observing in the pig house for a long time will seriously affect the health of the staff; And factors such as human fatigue and cognitive level will lead to inaccurate information and omissions. Therefore, it is urgent to find a more convenient, accurate and reliable automatic detection method.

Method used

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  • Method for indentifying pig walking postures based on ellipse fitting
  • Method for indentifying pig walking postures based on ellipse fitting
  • Method for indentifying pig walking postures based on ellipse fitting

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Embodiment Construction

[0018] Design scheme flow chart of the present invention is as figure 1 shown. Specific steps are as follows.

[0019] 1. Use the image acquisition system to collect images of the pigs in the pigsty.

[0020] 2. Use the background subtraction method to detect the target pig in the image, and extract the outline of the target pig; use the morphological algorithm to process the extracted outline, respectively remove the spines in the pig body and fill the holes in the image to obtain a complete image pig body silhouette.

[0021] 3. Use the improved random ellipse detection algorithm to fit the ellipse of the pig body contour in the image and establish the coordinate system.

[0022] (1) Improved random ellipse detection algorithm

[0023] The existing randomized ellipse detection (Randomized Ellipse Detection, RED) algorithm has the defect of large error in pig posture recognition. This paper makes the following improvements to the RED algorithm: 1) Select the adaptive thre...

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Abstract

The invention provides a method for indentifying pig walking postures based on ellipse fitting, which is characterized by comprising the following steps of: step (1), utilizing a background difference method to obtain a clear outline of a target pig; step (2), utilizing the ellipse fitting to determine characteristic parameters of all parts of the outline of the pig; and step (3), realizing the classification of different postures of normally standing, standing with a lower head, laying down and the like based on a pig walking posture classifier of a support vector machine.

Description

technical field [0001] The invention belongs to image processing and machine vision technology. Specifically, it also involves ellipse fitting and animal behavior recognition and classification technology. Background technique [0002] Videos and images are vivid and intuitive descriptions of objective things. After entering the 21st century, the pace of digitalization and networking has gradually accelerated. Video surveillance systems are favored for their intuitive and real-time advantages, and have been used in many areas, including government agencies, power telecommunications, prisons, military, Banks, vaults, supermarkets, shopping malls, hotels, communities, schools, office buildings, etc. [0003] With the improvement of living standards, the focus of people's requirements for food has gradually shifted from the increase in quantity to the simultaneous increase in quantity and quality. Pork food has become an indispensable food in people's life. Therefore, the im...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/46
Inventor 朱伟兴何亚旗李新城马长华
Owner JIANGSU UNIV