The video interpretation is an important component of modern optical measurement equipment. In order to increase the efficiency of video interpretation

a new and quick interpretation method

including automatic interpretation and semiautomatic interpretation

is studied and presented. In automatic interpretation

the image stored in hard disk of computer is decomposed through median filtering and two value segmentation

and the barycenter of target is automatically computed

then the output of target undershoot error is given. However

under the special conditions of large target and low contrast

the precision of automatic interpretation is relatively low

it is necessary to use semiautomatic interpretation method to improve the interpretation precision. The experiment results in this thesis show that the hybrid of automatic interpretation and semiautomatic interpretation as a new interpretation method can greatly increase the efficiency and precision of interpretation.