We introduce our project for recording and communicating multiple videos in a large-scale space such as a convention hall or a succor stadium. By seamlessly integrating the multiple 2D videos and the 3D models reconstructed from the 2D, the observer can select an arbitrary viewing position and can see a video with motion parallax. The quality of the synthesized video at a novel viewing position can be improved by combining the texture obtained by pan-tilt-zoom control cameras with the 3D model reconstructed from the videos captured by the fixed cameras. Our system can record completely synchronized multiple videos with an identical timestamp for every frame captured at a same instant. An experimental approach we adopted in this project has successfully clarified a lot of useful techniques such as the camera calibration and the camera arrangement in a large-scale space.
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