Pig project was funded by BBSRC - the Biotechnology and Biological Sciences Research Council to investigate relationships between the pigs' growth and their diets, genotypes. The project was collaborated with Sensing Group, Silsoe Research Institute.
The project in Glasgow University side had three major tasks - a: build up a 3D image capturing system,integrate range images into a 3D mesh and develop 3D modelling tools.
3D image capturing system consists of six kodak professional digital cameras (3032x2008 pixels) and three flash lights.The six cameras are connected to a PC through IEEE1394 (firewire) cables and the three flashes are connected to camera. The system captures stereo images of pigs from top, side and back views simultaneously in less than 1ms, which is controlled by a PC.
The data were collected in the pig farm land in weekly basis. Stereo images were processing to obtain range images from individul view by stereo matching, then the range images from three views for each capture were integrated into a single mesh for further surface modelling and analysis.
Fig 1. 3D Stereo Imaging Photogrammetry System
Fig 2. Range images of a pig from side, top and back views
Fig 3. The reconstructed 3D mesh of a pig with texture mapped