@inbook{e069130a6fa747289c915013993c9de4,
title = "Model-based calving monitor using real time image analysis",
abstract = "In this study a model-based calving monitoring was developed to identify the standing and lying behaviour of cows during their pre-calving period. For this purpose video surveillance of 8 cows for 6 discrete hours during the 24 hours prior to their calving were analyzed. Using the model-based calving monitor, 7 different shape variables through time were obtained for each cow. These were: x and y coordinate of the centre point of the cow; walking trajectory; distance walked; orientation of the main axis; body width/length ratio; hip length and back area. These variables were then used to classify standing and lying behaviour. On average 85\% of the standing and lying behaviour of the 8 cows during the last 6 discrete hours before calving could be correctly classified.",
keywords = "Calving, Image analysis, Standing and lying behaviour classification",
author = "{\"O} Cangar and T. Leroy and M. Guarino and E. Vranken and R. Fallon and J. Lenehan and J. Mee and D. Berckmans",
year = "2007",
language = "English",
isbn = "9789086860234",
series = "Precision Livestock Farming 2007 - Papers Presented at the 3rd European Conference on Precision Livestock Farming",
pages = "291--298",
booktitle = "Precision Livestock Farming 2007 - Papers Presented at the 3rd European Conference on Precision Livestock Farming",
note = "3rd European Conference on Precision Livestock Farming, ECPLF 2007 ; Conference date: 03-06-2007 Through 06-06-2007",
}