Intrinsic Color Acquisition By Active Color Lighting

Object’s color information is not invariant information but is affected by surrounding environments including ambient lights. In this paper, we propsed a new method to acquire intrinsic color information without being affected by ambient lights. In our method, we use a projector as a light source, then capture multiple images with varied color of illumination. Combining these multiple images, we eliminate the influence of ambient lights with avoiding the dark current problem of CCD camera. We show how we treat with other problems caused by specular reflection and interreflection. In the experiments, we show that using our method we can acquire intrinsic diffuse color information without being affeted by ambient lights.