抄録
Designers, who develop moving images, ordinarily create three-dimensional computer animation (3-DCA) in collaboration with operators, who work using computers. In this case, the operators need to be able to receive each image motion from the designers accurately. In this paper, we propose a new work flow system for creating 3-DCA to communicate the timing information of the image motions. We present a numerical definition of the timing information for 3-DCA and propose a tool for extracting it from the designer's hand motions. Operators can then receive the numerical timing information from designers using the tool with the proposed work flow. The tool is simply composed of a personal computer and a CCD-camera. Experimental results showed that the extracted numerical timing information was similar to that of the image of the designers. The proposed work flow and the tool are useful for efficiently communicating timing information and developing 3-DCA.