8-D reflectance field for computational photography

Some computational photography techniques have been proposed to control the focus and illumination of captured images. However, the relationship between the techniques have been unclear because they were developed independently for different purposes. In this research we propose a unified framework to explain the computational photography techniques in the computation of an 8-D reflectance field. Moreover, for an 8-D reflectance field we show that the synthetic aperture, the image-based relighting, and the confocal imaging techniques can be realized using the same measuring device.