Dairy cow body size detection device based on RGB-D camera, and detection method thereof

Abstract

The invention discloses a dairy cow body size detection device based on an RGB-D camera, and a detection method thereof, and belongs to the technical field of animal husbandry informatization. The method comprises the following steps: building a dairy cow image collection platform in an experiment field, and obtaining a target image; processing the RGB image, and achieving identity recognition of the dairy cow; processing the RGB image and a point cloud image to realize registration fusion of RGB and point cloud; and processing the fused point cloud image obtained in the above steps to realize automatic detection of the body size of the dairy cow. According to the invention, the cow image acquisition platform of the RGB-D camera is constructed, and non-contact cow body size automatic detection is realized based on image processing and mode recognition. The automation degree of detection is improved, the workload of manual detection is greatly relieved, and the problem of accurate correspondence between the body size and the identity of the dairy cow is solved.

Description

technical field [0001] The invention belongs to the technical field of animal husbandry informatization, and in particular relates to a dairy cow body size detection device and detection method based on an RGB-D camera. Background technique [0002] my country is a developing agricultural country. As an important part of modern agriculture, animal husbandry plays an important role in promoting the adjustment of agricultural industrial structure and improving the quality of life of urban and rural residents. In recent years, the dairy farming industry has developed rapidly, gradually transitioning from the traditional free-range breeding model to the large-scale and intensive breeding model. In the traditional breeding mode, it mainly relies on manual work to obtain various body size data of dairy cows, which requires a lot of time and manpower input, which is far from meeting the development needs of the modern dairy farming industry. It must rely on precision breeding suppo...

AI Technical Summary

Problems solved by technology

The traditional contact measurement is to measure the body size and traits of cows by professionals using tools such as tape measure, measuring stick, and circular touch detector. This method has a large workload, time-consuming and laborious, and even cows attack people. ; In addition, due to the difference in the measurement experience of the staff, the measurement results will have a large deviation

Non-contact measurement often uses a common monocular camera to detect the body size of dairy cows. This measurement method is limited by external light, environment, and cow poses, and it is difficult to obtain surface data of cow body shape. ruler index is less

[0005] In recent years, with the rapid development of computer, electronic industry, and stereo vision technology, non-contact measurement has also appeared to detect the body size of dairy cows based on stereo vision technology. Compared with manual detection, this measurement method has higher efficiency. , can avoid the influence of subjective factors in the measurement process, and can avoid the stress response of cows at the same time, but at present, only using point cloud data will have the disadvantage of missing or incomplete edge information of cows, resulting in the low accuracy of the detected cow body size and the detection accuracy. The number of body size indicators also needs to be further improved

In the non-contact body measurement of dairy cows, there are often problems such as the cow’s ear tag falling off and the cow’s head swinging, which lead to the failure of the cow’s identification and inaccurate identification.

With the rapid development of computer vision technology, relevant scholars have proposed an automatic cow recognition method based on image algorithms, but the recognition accuracy is still at a low level

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