Automated body condition scoring of dairy cows using 3-dimensional feature extraction from multiple body regions

X. Song*, E.A.M. Bokkers, S. van Mourik, P.W.G. Groot Koerkamp, P.P.J. van der Tol

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

12 Citations (Scopus)

Abstract

Machine vision technology has been used in automated body condition score (BCS) classification of dairy cows. The current vision-based classifications use information acquired from a limited number of body regions of the cow. Our study aimed to improve automated BCS classification by including multiple body condition–related features extracted from 3 viewpoints in 8 body regions. The data set of this study included 44 lactating cows with their BCS evenly distributed over the scale of BCS from 1.5 to 4.5 units. The body images of these cows were recorded over 2 consecutive days using 3-dimensional cameras positioned to view the cow from the top, right side, and rear. Each image was automatically processed to identify anatomical landmarks on the body surface. Around these anatomical landmarks, the bony prominences and body surface depressions were quantified to describe 8 body condition–related features. A manual BCS of each cow was independently assigned by 2 trained assessors using the same predefined protocol. With the extracted features as inputs and manual BCS as the reference, we built a nearest-neighbor classification model to classify BCS and obtained an overall classification sensitivity of 0.72 using a 10-fold cross-validation. We conclude that the sensitivity of automated BCS classification has been improved by expanding the selection of body condition–related features extracted from multiple body regions.

Original languageEnglish
Pages (from-to)4294-4308
JournalJournal of Dairy Science
Volume102
Issue number5
Early online date14 Mar 2019
DOIs
Publication statusPublished - May 2019

Keywords

  • 3-dimensioanl camera
  • automatic
  • body condition score
  • dairy cattle

Fingerprint Dive into the research topics of 'Automated body condition scoring of dairy cows using 3-dimensional feature extraction from multiple body regions'. Together they form a unique fingerprint.

Cite this