Advertisement

This paper presents a new method that utilizes the technologies of image processing and computer vision. Firstly, the projected areas of the pig’s image captured directly from top view are computed. Secondly, the heights are obtained from side view. Then the pig’s weight is estimated by the projected areas and heights. By comparing with the real weight, the mean relative error is 3.2%. The experiment indicates that this hands-off method has great significance in scientific management of the pig’s production which does not require large labor and material resources, and also avoid the loss in production resulted from stress.

Keywords

pig weight image processing projected area height 

References

  1. Schofield, C.P., J.A. Marchant et al., 1999. Monitoring pig growth using a prototype imaging system. Journal of Agric. Engineering. 72, 205-210.CrossRefGoogle Scholar
  2. Doeschl, A.B., Green, D.M., Whittemore, C.T., Schofield, C.P., Fisher, A.V. and Knap, P.W. 2004. The relationship between the body shape of living pigs and their carcass morphology and composition. Animal Science. 79: 73-83.Google Scholar
  3. Minagawa, H. and T. Ichikawa. Determining the weight of pigs with image analysis. Trans. ASAE. 37(3):1011-1015.Google Scholar
  4. Wan Q.Q., 1994. Digital image processing, Beijing: electronic industry publish company, 2001.Google Scholar
  5. Yu X.W., Shen Z.R.. 2001, Research of insects’ digital image segmentation. Transactions of the Chinese Society of Agricultural Engineering, Vol. 17(3): 137-141.Google Scholar

Copyright information

© IFIP International Federation for Information Processing 2008

Authors and Affiliations

  • Yan Yang
    • 1
  • Guanghui Teng
    • 1
  1. 1.Department of Plant Science & TechnologyBeijing Agricultural CollegeChina

Personalised recommendations