Hoof Location Method of Lame Dairy Cows Based on Machine Vision

被引：0
|
作者：
Kang X. [1 ]
Zhang X. [1 ]
Liu G. [1 ,2 ]
Ma L. [1 ]
机构：
[1] Key Laboratory of Modern Precision Agriculture System Integration Research, Ministry of Education, China Agricultural University, Beijing
[2] Key Laboratory of Agricultural Information Acquisition Technology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing
来源：
Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery | 2019年 / 50卷
关键词：
Dairy cow; Image processing; Lameness; Machine vision; Temporal and spatial variation;
D O I：
10.6041/j.issn.1000-1298.2019.S0.043
中图分类号：
学科分类号：
摘要：
In order to solve the problem that it is not easy to accurately and automatically locate the hoof position of dairy cows in the process of lameness detection by machine vision technology, a method of hoof location for dairy cows was proposed. Through extraction of cow hoof image by preprocessing cow image in visible video, study on spatial-temporal characteristics of dairy cows walking, analysis of temporal and spatial variations of cows hooves in images, a spatiotemporal difference algorithm was proposed, the lowest coordinates of connected domain was computed, and the cows' hoofs were located accurately. Through analysis of the moving sequence of cows' hoofs, extraction and classification of homologous hoof position data, the data requirement of the lameness track detection method was met to judge the lameness of dairy cows by using the hoof position of the same side of the cow before and after the lameness track detection method. The positioning test of cattle hoof and lameness test were carried out; this method can accurately locate the cows' hoofs, when the threshold was 20 pixels the accuracy was 73.8%, the average error of calculating the landing position of cows' hoofs reached 11.3 pixels, the accuracy of cow lameness track detection was 93.3%, the accuracy of lameness claudication was 77.8%, the results can accurately locate the hoofs of dairy cows under natural walking conditions, and realize automatic detection of lameness in dairy cows. © 2019, Chinese Society of Agricultural Machinery. All right reserved.
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页码：276 / 282
页数：6
相关论文
共 25 条
  • [1] Li L., Pan Y., Lameness is not just about cattle, Animal Science Abroad-Pigs and Poultry, 29, 6, pp. 33-35, (2009)
  • [2] Xu G., Causes and prevention management of cow lameness, Disease Prevention, 4, pp. 63-64, (2017)
  • [3] Dolecheck K., Bewley J., Animal board invited review: dairy cow lameness expenditures, losses and total cost, Animal, 7, pp. 1-13, (2018)
  • [4] Jose A.B., Daros R.R., Keyserlingk M.A.G.V., Et al., Cow and herd-level factors associated with lameness in small-scale grazing dairy herds in Brazil, Preventive Veterinary Medicine, 151, pp. 79-86, (2018)
  • [5] Sjostrom M.K., Fall N., Blanco-Penedo I., Et al., Lameness prevalence and risk factors in organic dairy herds in four European countries, Livestock Science, 208, pp. 44-50, (2018)
  • [6] Griffiths B.E., Dai G.W., Georgios O., A cross-sectional study into the prevalence of dairy cattle lameness and associated herd-level risk factors in England and Wales, Frontiers in Veterinary Science, 5, pp. 65-72, (2018)
  • [7] Tim V.D.G., Stephanie V.W., Annelies V.N., Et al., Supporting the development and adoption of automatic lameness detection systems in dairy cattle: effect of system cost and performance on potential market shares, Animals, 7, 12, pp. 77-91, (2017)
  • [8] Adair S., Baus M., Belknap J., Et al., Response to letter to the editor: do we have to redefine lameness in the era of quantitative gait analysis, Equine Veterinary Journal, 50, 3, pp. 415-417, (2018)
  • [9] Van W.P.R., Pfau T., Rhodin M., Et al., What is lameness and what (or who) is the gold standard to detect it?, Equine Veterinary Journal, 50, 5, pp. 549-551, (2018)
  • [10] Weigele H.C., Gygax L., Steiner A., Et al., Moderate lameness leads to marked behavioral changes in dairy cows, Journal of Dairy Science, 101, 3, pp. 2370-2382, (2018)
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