Computational Hydrographic Printing

Yizhong Zhang, Hubery Yin, Changxi Zheng, Kun Zhou

Abstract:

Hydrographic printing is a well-known technique in industry for transferring color inks on a thin film to the surface of a man- ufactured 3D object. It enables high-quality coloring of object surfaces and works with a wide range of materials, but suffers from the inability to accurately register color texture to complex surface geometries. Thus, it is hardly usable by ordinary users with customized shapes and textures.
We present computational hydrographic printing, a new method that inherits the versatility of traditional hydrographic printing, while also enabling precise alignment of surface textures to pos- sibly complex 3D surfaces. In particular, we propose the first computational model for simulating hydrographic printing pro- cess. This simulation enables us to compute a color image to feed into our hydrographic system for precise texture registration. We then build a physical hydrographic system upon off-the-shelf hardware, integrating virtual simulation, object calibration and controlled immersion. To overcome the difficulty of handling complex surfaces, we further extend our method to enable multi- ple immersions, each with a different object orientation, so the combined colors of individual immersions form a desired texture on the object surface. We validate the accuracy of our computa- tional model through physical experiments, and demonstrate the efficacy and robustness of our system using a variety of objects with complex surface textures.