A DIGITAL ARCHIVE METHOD BASED ON MULTISPECTRAL IMAGING WITH GONIOMETRIC MULTIBAND CAMERA

Abstract

A method for digital archiving of art objects using a multispectral reflection model is proposed. The device consists of a lighting system, goniometric rotating arms, and a vision system with a two-shot six-band camera. Parameters are derived from the multiband camera with an optical filter and a device that measures the distribution of light reflection intensity on an object’s surface. For digital archiving and computer graphics rendering, multispectral reflection properties of the object are estimated from goniospectral measurements. Multiple images of the object’s surface are acquired at different illumination and viewing directions. Under the same conditions, reflection model parameters are estimated from sensor measurements of the reflection intensity of the object’s surface. Finally, we rendered a realistic image of the object and visually confirmed the validity of the proposed method.