Illumination invariant mesh coloring

Abstract

Many approaches have been proposed for reconstructing photorealistic texture mapping of 3D models with multi-view images. These models can properly represent the objects in fixed light conditions. However, they are unable to react to light changes. In light-changeable application scenarios, such as visual reality, relighting and 3D printing, models without diffuse reflection are highly demanded. In this paper, we present a non-photorealistic per-vertex illumination invariant mesh coloring method to couple intrinsic color information into mesh, which can reflect material properties more accurately. The proposed method consists of two steps: global optimal coloring and label-based intrinsic decomposition. Illumination effect is eliminated in decomposition procedure and color consistency is also implicitly considered. Experiments on 3D printing and model relighting demonstrated that our approach is versatile and practical.