A novel LCD based photometric stereo method

This paper presents a novel LCD screen based photometric stereo method. The method is implemented with only a normal laptop. The screen of the computer is used as the light source and portioned into some different regions to simulate various lighting conditions. And the embedded camera is used for the image capture. With a deduction and proof, we show that a circular partition scheme can obtain optimal lighting effects. By the proposed lighting direction calibration means, a traditional photometric stereo algorithm is utilized for the 3D reconstruction. The experiments are conducted with a real object and compared with conventional means to demonstrate its feasibility and reconstruction accuracy.