1. Annamalai, P., Lee, W.S.: Citrus yield mapping system using machine vision. ASAE paper 03-1002 (2003)
2. Bulanon, D.M., Kataoka, T., Zhang, S., Ota, Y., Hiroma, T.: Optimal thresholding for the automatic recognition of apple fruits. ASAE paper 01-3133 (2001)
3. Jimenez, A.R., Ceres, R., Pons, J.L.: A survey of computer vision methods for locating fruit on trees. Transactions of the ASAE 43, 1991–1920 (2000)
4. Kim, Y., Reid, J.: Apple Yield Mapping Using a Multispectral Imaging Sensor. In: Proceedings of the AgEng 2004 Conference (2004)
5. Pla, F., Juste, F., Ferri, F., Vicens, M.: Colour segmentation based on a light reflection model to locate citrus fruits for robotic harvesting. Computers and Electronics in Agriculture 9, 53–70 (1993b)