6D'Esnon A G, Rabatel G, Pellenc R. Magali: A selfpropelled robot to pick apples[J]. ASAE Paper No. 87-1037, 1987.
7Buemi F, Massa M, Sandini G. Agrobot:a robotic system for greenhouse operations[A]. 4^th Workshop on robotics in Agrjculture[C]. IARP. Tolouse, pages 172-184,1995.
8Kondo N, et al. Contol method for 7DOF robot to harvest tomato[A]. Proceedings of Asian Control Conference[C], 1994,1--4.
9Kondo N, et al. Visual feedback guided robotic: cherry tomato harvesting[J]. Transactions of the ASAE. 1996,39(6) :2331--2338.
10Pla F, Juste F, Ferri F. Feature extraction of spherical objects in image analysis: an application to robotic citrus harvesting[J]. Computers and Electronics in Agricuhure.1993,8:57-72.
