Livestock body contour reconstruction method and body condition scoring method based on soft laser ranging

A body contour and soft laser technology, which is applied in the field of soft laser ranging, can solve the problems of limited use environment, no structural animals, and great influence

Active Publication Date: 2016-08-31
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method requires simple equipment and is easy to operate, but the angle of shooting when acquiring image data has a great influence on the extraction of contours, and the weather and lighting conditions, background and animal color also have a greater impact on the extraction of contour information , so this method generally performs three-dimensional reconstruction of specific parts, and does not construct the outline of the entire animal
[0005] Kinect sensor technology uses active infrared ranging method to measure depth information, and then performs three-dimensional reconstruction based on the measured depth information, but the accuracy of Kinect sensor measurement is seriously affected by ambient light, so there are certain restrictions on the use environment

Method used

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  • Livestock body contour reconstruction method and body condition scoring method based on soft laser ranging
  • Livestock body contour reconstruction method and body condition scoring method based on soft laser ranging
  • Livestock body contour reconstruction method and body condition scoring method based on soft laser ranging

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Embodiment 1

[0057] Such as figure 1 As shown, the three soft laser scanning heads used in the present invention are respectively arranged in front of, behind and above the livestock to be reconstructed, wherein the first soft laser scanning head and the second soft laser scanning head are arranged on the same horizontal line, The distance between the two is L, the third soft laser scanning head is arranged above the first soft laser scanning head and the second soft laser scanning head, the distance between the third soft laser scanning head and the first soft laser scanning head Equal to the distance between the third soft laser scanning head and the second soft laser scanning head, and the vertical distance between the third soft laser scanning head and the horizontal line formed by the first soft laser scanning head and the second soft laser scanning head is 0.5L.

[0058] Such as figure 2 as shown, figure 2 It is a schematic flow chart of the reconstruction method of the present ...

Embodiment 2

[0115] The present invention also provides a body condition scoring method based on the above reconstruction method, which is specifically as follows: use the reconstruction method to construct the body shape profile of livestock, and then score through the constructed body shape profile, as shown in (1) or (2) :

[0116] (1) Reflect the body shape of the livestock by measuring the body height and body length of the body shape profile constructed by the animal, and score, as follows:

[0117] 1) The measurement of the body height is obtained by converting it into the distance between two feature points, or the distance between a point and a surface;

[0118] 2) The measurement of the body length is obtained by analyzing the contours of the head and the rear of the constructed animal body shape, specifically by constructing a rectangular frame circumscribed to the head contour and the rear contour respectively, and the two rectangular frames are parallel. Points can determine ...

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Abstract

A reconstruction method provided by the invention is configured to divide the whole contour of a livestock into a plurality of body parts, build a standard template for each body part, obtain livestock contour point cloud data through the soft laser technology which is safe for eyes, fuse the point cloud data and the standard template and obtain a reconstructed livestock body contour. The contour obtained by the method provided by the invention is more accurate with no need for complex algorithm for extraction and calculation, and cannot be interfered or influenced by extraneous environment so as to rapidly generate a complete three-dimensional contour.

Description

technical field [0001] The present invention relates to the technical field of soft laser ranging, and more particularly, to a method for reconstructing animal body contours and a body condition scoring method based on soft laser ranging. Background technique [0002] In the prior art, thermal imaging technology, image processing technology and Kinect sensor technology are generally used to reconstruct the outline of livestock body. [0003] Among them, the thermal imaging technology reconstructs the outline of livestock by capturing the outline information of the animal surface through the thermal imaging camera, but the thermal imaging camera is expensive, and the corresponding data frame needs to be manually separated from the video stream during the reconstruction process, which cannot be fully automated. [0004] In the implementation process of image processing technology, first obtain the image data of livestock, and then use algorithms to extract the image data, obta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/60G06T17/00
CPCG06T7/0012G06T17/00
Inventor 尹令刘财兴李娇娇吴贤奇
Owner SOUTH CHINA AGRI UNIV
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