Distortion-free Mid-air Image Inside Refractive Surface and on Reflective Surface

In this study, we propose an approach to display a distortion-free mid-air image inside a transparent refractive object and on a curved reflective surface. We compensate for the distortion by generating a light source image that cancels the distortions in the mid-air image caused by refraction and reflection. The light source image is generated via ray-tracing simulation by transmitting the desired view image to the mid-air imaging system, which includes distortive surfaces, and by receiving the transmitted image at the light source position. The proposed methods can be applied to dynamic images using a light source image as a UV map in texture mapping. Finally, we present the results of an evaluation of our method performed in an actual optical system using the generated light source image, which visually demonstrate the effectiveness of the proposed approach.