... is proposed. In this method, the sample's surface normal is fixed and various lighting and viewing directions are obtained by relocating the source and detector. A visualization system was developed to help explore the measured data. The system allows the user to select a measured data point to display...

...Hu Jin-lian; Xin Binjie This paper presents a digital imaging method based on silhouette image analysis to visualize the 3D surface roughness of textile or other flexible materials. A prototype of imaging system consisting of five components was developed: visible lighting source (white...