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International Journal of Advanced Computer Science and Applications(IJACSA), Volume 11 Issue 9, 2020.
Abstract: Thorough and precise estrus detection plays a crucial role in the fertility of dairy cows. Farmers commonly used direct visual monitoring in recognizing estrus signs which demands time and effort and causes misinterpretations. The primary sign of estrus is the standing heat, where the dairy cows stand to be mounted by other cows for a few seconds. Through the years, researchers developed various detection methods, yet most of these methods involve contact and invasive approaches that affect the estrus behaviors of cows. So, the proponents developed a non-invasive and non-contact estrus detection system using image processing to detect standing heat behaviors. Through the TensorFlow Object Detection API, the proponents trained two custom neural network models capable of visualizing bounding boxes of the predicted cow objects on image frames. The proponents also developed an object overlapping algorithm that utilizes the bounding box corners to detect estrus activities. Based on the conducted tests, an estrus event occurs when the centroids of the detected objects measure a distance of less than 360px and have two interior angles with another fixed point of less than 25° and greater than 65° for Y and X axes, respectively. If the conditions are met, the program will save the image frame and will declare an estrus activity. Otherwise, it will restart its estrus detection and counting. The system observed 17 cows, a carabao, and a bull through the cameras installed atop of a cowshed, and detects the estrus events with an efficiency of 50%.
Nilo M. Arago, Chris I. Alvarez, Angelita G. Mabale, Charl G. Legista, Nicole E. Repiso, Rodney Rafael A. Robles, Timothy M. Amado, Romeo Jr. L. Jorda, August C. Thio-ac, Jessica S. Velasco and Lean Karlo S. Tolentino, “Automated Estrus Detection for Dairy Cattle through Neural Networks and Bounding Box Corner Analysis” International Journal of Advanced Computer Science and Applications(IJACSA), 11(9), 2020. http://dx.doi.org/10.14569/IJACSA.2020.0110935
@article{Arago2020,
title = {Automated Estrus Detection for Dairy Cattle through Neural Networks and Bounding Box Corner Analysis},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2020.0110935},
url = {http://dx.doi.org/10.14569/IJACSA.2020.0110935},
year = {2020},
publisher = {The Science and Information Organization},
volume = {11},
number = {9},
author = {Nilo M. Arago and Chris I. Alvarez and Angelita G. Mabale and Charl G. Legista and Nicole E. Repiso and Rodney Rafael A. Robles and Timothy M. Amado and Romeo Jr. L. Jorda and August C. Thio-ac and Jessica S. Velasco and Lean Karlo S. Tolentino}
}
Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.