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Method for measuring body size of living Qinchuan cattle based on 3D camera

A measurement method and cow body technology, applied in image analysis, image enhancement, instruments, etc., can solve problems such as inconvenient data processing, complex structure of laser scanners, and affecting the density of point cloud data

Pending Publication Date: 2022-05-03
NORTHWEST A & F UNIV
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Problems solved by technology

[0003] With the development of science and technology, 3D reconstruction and point cloud processing technology has become more popular. Most of the existing point cloud acquisition equipment for body shape measurement technology is laser scanner, but the structure of laser scanner is relatively complicated, which is difficult to obtain in the actual operation process. promotion, and the operation of the measurement site directly affects the density of point cloud data, which is very likely to bring great inconvenience to later data processing

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  • Method for measuring body size of living Qinchuan cattle based on 3D camera
  • Method for measuring body size of living Qinchuan cattle based on 3D camera
  • Method for measuring body size of living Qinchuan cattle based on 3D camera

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[0012] specific implementation plan

[0013] exist figure 2 In the process, the graphical operation interface is designed, and the 3D camera is used to obtain indoor static / moving regular objects, and the original point cloud image is obtained. After preprocessing such as noise reduction, segmentation, and curve fitting, the camera position parameters are corrected.

[0014] exist image 3 In the process, make a camera bracket, collect the point cloud image of the target live cow, and after preprocessing, perform surface reconstruction on the point cloud image of the cow body, set hotspot interaction on the 3D reconstructed model map, and manually select the points between the measurement parts with the mouse body size data.

[0015] exist Figure 4 In this method, after point cloud image preprocessing and surface reconstruction, the cow body is divided into half along the x-axis direction of the right-hand coordinate system through consistency and European clustering, an...

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Abstract

The invention discloses a method for measuring the body size of a living Qinchuan cattle based on a 3D camera. Indoor regular object point cloud images are obtained through a 3D laser camera, and by means of filtering, segmentation, curve fitting, correction and other algorithms, through coordinate transformation and by means of a space curve length measurement method, the non-contact measurement function of 11 body sizes, namely, the body height, the waist height, the body slope length, the jijiang length, the chest width, the jijiang width, the chest circumference, the abdominal circumference, the tube circumference, the hip width and the waist angle width, of a target cattle body is finally achieved. The problems of high difficulty and low efficiency of manual measurement of the cattle body size are solved to a certain extent.

Description

[0001] Technical field [0002] The invention relates to a TOF (Time of Flight) camera (IFM O3D303) to obtain three-dimensional point cloud data of Qinchuan cattle, and realizes a safe and convenient accurate body measurement method. Background technique [0003] With the development of science and technology, 3D reconstruction and point cloud processing technologies have become more popular. Most of the existing point cloud acquisition equipment for body shape measurement technology is laser scanners, but the structure of laser scanners is relatively complicated, which is difficult to obtain in actual operation. Promotion, and the operation of the measurement site directly affects the density of point cloud data, which is very likely to bring great inconvenience to the later data processing. Contents of the invention [0004] The present invention uses a TOF (Time of Flight) camera (IFM O3D303) to obtain a three-dimensional image of a cow, performs curve fitting and surface...

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Application Information

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IPC IPC(8): G06T7/60G06T7/10
CPCG06T7/60G06T7/10G06T2207/10012
Inventor 侯紫霞黄铝文饶琴琴邱事成
Owner NORTHWEST A & F UNIV
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