Using indoor walls and floor as a projection surface, we can present surrounding images around a viewer by two projectors with fisheye lenses that are mounted on the ceiling of the room. In this paper, we perform the geometric correction to eliminate the distortion of the fisheye lenses from projected images. In addition, we fit the position of the ground in the projected images to the position of the floor in the room. As results, we can give a viewer a highly immersive feeling.