The present work proposes the implementation of the same low-cost Kinect v1 depth camera for fast, non-contact measurements of pig body dimensions such as heart girth, length and height. Such body values can be directly related to weight; the estimated data were eventually
compared with the results from manual measurements during the weaning period. Then, unlike previous works (Kongsro, 2014), the experimental analysis focused on pigs with a weight lower than 50 kg,which is a particularly critical size typically characterized by relatively high weight estimation uncertainties. The proposed approach takes advantage of non-linear models to exploit the full performance of the Kinect depth camera and eventually reduce the standard error of the
estimate.