The video imagery gives important information to the dynamic analysis of human motion in the field of sports training or rehabilitation. For understanding the dynamics of human motion from TV or video image sequences, however, there are two complicated subjects. One is an image processing, for example, automated recognition of human's feature points such as head, elbow, knee etc.. The second is, how to estimate camera orientation parameters in the photogrammetry.
The authors analyzed the sports dynamics, e. g. Carl Lewis and Boat Rowing using TV images. In these cases, the camera orientation were achieved by utilizing special information such as goal line, course lines and buoys which marks course line. However, the camera orientation for images without any information became important subjects. If CCD camera is mounted on the theodolite, ω andκcan be acquird as a vertical and horizontal angle, and φis regarded as 0 degree because the theodolite is leveled. Furthermore, these rotation parameters can be recorded as a image data by means of superimpose. With this in mind, the authors developed the video theodolite system which consist of CCD camera, theodolite and video recorder to estimate camera rotation parameters with real time and to record image data. This paper presents the application of video theodolite system for the dynamic analysis of human motion with sequential images.
抄録全体を表示