A method for spectral recording and rendering or art paintings

摘要

This paper proposes a method for recording and rendering of art paints by using both shape and spectral reflectance data of the object surfaces. A laser range finder is used for measuring the surface shape. A six-channel camera is used as a multi-band camera for spectral imaging. We estimate the most appropriate surface-spectral reflectance using a set of the reflectance observed at different illumination directions and the constructed shape. At the rendering stage, we use a 3D light reflection model for creating computer graphics images. The recovered object shape and spectral reflectance are combined for synthesizing object images under arbitrary conditions of illumination and viewing. Experiment results using an oil painting of a natural scene are shown.