Development of face tracking technique by pattern matching for councelling non-attendance at school

Abstract

We are developing a technique to monitor information during the training for non-attendant student. We found the forward-bent of patient can be a parameter indicating the mental condition of client. The training was recorded by a digital video-camera. After the training, the forward-bent was measured manually from recorded pictures. In this paper, we reports the application of pattern matching technique to measure the forward-bent. As result of preliminary experiment, it was found that the downward distance calculated by the matching technique and the distance obtained manually are mutually related. In addition, frequency analysis is enabled by this technique. We examined possibility to grasp strain state of mind by frequency analysis, for example, stiff movement by strain of mind, and to be relaxed by change of frequency distribution. We developed a DV camera system in this analysis, but Video capture from a DV camera and conversion work to huge number of still image is necessary. We plan the camera interface connection such as IEE1394or USB2.0 protocol to a PC directly and an image transfer to memory improves efficiency.