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JOURNALS // Vestnik Yuzhno-Ural'skogo Gosudarstvennogo Universiteta. Seriya "Vychislitelnaya Matematika i Informatika" // Archive

Vestn. YuUrGU. Ser. Vych. Matem. Inform., 2023 Volume 12, Issue 1, Pages 5–27 (Mi vyurv289)

Prediction model of live weight using deep regression RGB-D images

A. N. Ruchayabc

a Chelyabinsk State University (st. Br. Kashirinyh 129, Chelyabinsk, 454001 Russia)
b South Ural State University (pr. Lenina 76, Chelyabinsk, 454080 Russia)
c Federal Research Centre of Biological Systems and Agrotechnologies of RAS (st. 9 Yanvarya 29, Orenburg, 460000 Russia)

Abstract: Predicting live weight helps to monitor animal health, effectively conduct genetic selection and determine optimal slaughter time. On large farms, accurate and expensive industrial scales are used to measure live weight. However, a promising alternative is to estimate live weight by using morphometric measurements of the animal and then applying regression equations linking such measurements to live weight. Manual measurements of animals using a tape measure are time-consuming and stressful for the animals. Therefore, computer vision technology is now increasingly being used for non-contact morphometric measurements. This article proposes a new model for predicting live weight based on image regression using deep learning techniques. It is shown that on real datasets the proposed model achieves weight measurement accuracy with a MAE of 35.5 and MAPE of 8.4 on the test dataset.

Keywords: image regression, live body weight prediction, cattle, deep learning.

UDC: 004.932, 51-76, 57.087

Received: 13.02.2023

DOI: 10.14529/cmse230101



© Steklov Math. Inst. of RAS, 2024