Fundamental Study for Creation of Ray-Based Image Engineering

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This research targets the creation of "ray-based image engineering". In the ray-based image engineering, 3D spatial information is represented by light rays. All components such as capturing, processing, and display of the visual system are treated not as pixel-based but ray-based. For displaying, we have developed 3D display and succeeded to create 3D images from ray-space data already. Now, we focus mainly on technologies for ray capturing and processing.For capturing, we developed an accurate, and efficient positioning method for a multi camera array. And we also developed a method to construct ray-space by correcting images capured by multi camera array.We developed methods for scene separation and synthesis, and the generation of special effect simulating optical phenomenon by signal processing on ray-space. Ray-space data compression, which is necessary for communication, was developed using similarities between multi-views images. Moreover, we developed mutual conversion between ray-space and hologram. The hologram based on physical phenomenon of light waves and their propagation is considered as an ultimate 3D image displaying method. The mutual conversion shows that ray-space can describe equivalent information for the hologram. This achievement gives physical meaning to ray-space as well as it proves that ray-space is a universal representation of 3D spatial information independent of capturing and displaying methods.