Abstract
In case of emergency, we need to grasp the situation and make correct assessment quickly. The picture taken from monitoring camera is inportant information in the emergent situation. In our research, we attempt to build a support system for identifying the picture of the monitoring camera by dealing with the pictures as spatio-temporal data. We proposed a method, which displays those pictures on one virtual large wall. For this presentation, the search key in our system is the location and the size of this large screen and from which direction to look. First we developed a general algorithm to index spatio-temporal data to get an idea for developing the algorithm for this search key.
