Image Rendering of Paintings Based on Multiband Camera Data

摘要

A method is proposed for recording and rendering of art paintings based on surface-spectral reflectances by a multiband camera. The camera system with six spectral channels of fixed wavelength bands is used for spectral imaging. We show that it is possible to render images of the object for different directions of illumination, without using the 3D shape data. First, we describe how estimate spectral reflectance for body reflection component of a rough surface. Next, we describe how to render the images under any lighting conditions. The surface normal vectors are estimated using the photometric stereo method. An experiment using an oil painting is done for demonstrating the feasibility of the proposed method.