To deal with the image definition of the micro manipulating robot under the vision servo control

a new method for the identification of the image definition is put forward

which is based on wavelet packets. As beginning

the features of the microscope system are discussed briefly. Furthermore

the advantage of wavelet packets applied in the analysis of the signal is introduced. With the analysis of the wavelet packets

the image definition eigenvector is constructed

and the linear classifier system for the image definition is established. To work out of the authority vector and threshold of the classifier system

Fisher rule is applied

which reduces the high-degree system to one-degree system. At the end of this paper

the linear classifier system is found to perform well by experiments.