Cranes such as container cranes and transfer cranes, have been made larger and faster for more efficient handling. However such a trend also resulted in a worse working environment for operators. For example, larger cranes result in a long distance between an operator and a target cargo. Mitsubishi Heavy Industries, Ltd. (MHI) has developed automatic control system to resolve those problems. MHI thought for such automation image processing technology is one of the most important technologies, because image information contains the most data, and is most similar to the human visual function with which humans can deal with many varieties of actions. Since MHI has developed an image feedback control system which consists of the above image processing technology and an optimal regulator control system, an outline of these results is going to be introduced in this paper.