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Vision-based trackway analysis in dairy cow’s locomotion

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  2007 ASAE Annual Meeting  073053.(doi:10.13031/2013.23176)
Authors:   X Song, T Leroy, E Vranken, D Berckmans, W Maertens, B Sonck
Keywords:   lameness, locomotion score, trackway, vision

The aim of this research was to explore the possibility of capturing cow’s locomotion activity by vision and the relation between vision-based calculated trackway and visual locomotion scores. 15 selected lactating cows were scored visually varied from 1 (normal walking) to 5 (extremely lame) by four trained observers. In the mean time, side view videos were recorded when cows passing the experimental set-up freely. After image processing, the trackway information containing hoof location in the real world was calculated. The mean correlation coefficient of between the results from image analysis and the output from manually labeled hoof movement was 94.8%. It proved that the image analysis method was feasible to present the cows’ real locomotion activity. The result from 15 cows’ trackway calculation showed a correlation between cows’ trackway overlaps and visual locomotion scores. This research proved that vision techniques had great potential to be used for continuous quantification of lameness in cows.

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