Real-Time Rendering of Teeth with No Preprocessing

We present a technique for real-time rendering of teeth with no need for computational or artistic preprocessing. Teeth constitute a translucent material consisting of several layers; a highly scattering material (dentine) beneath a semitransparent layer (enamel) with a transparent coating (saliva). In this study we examine how light interacts with this multilayered structure. In the past, rendering of teeth has mostly been done using image-based texturing or volumetric scans. We work with surface scans and have therefore developed a simple way of estimating layer thicknesses. We use scattering properties based on measurements reported in the optics literature, and we compare rendered results qualitatively to images of ceramic teeth created by denturists.

[1]  Paul Debevec,et al.  The Digital Emily project: photoreal facial modeling and animation , 2009, SIGGRAPH '09.

[2]  Akira Ishimaru,et al.  Wave propagation and scattering in random media , 1997 .

[3]  Richard van Noort,et al.  The future of dental devices is digital. , 2012 .

[4]  Sudarshanram Shetty,et al.  Layered rendering model for human teeth , 2010 .

[5]  Yong Wang,et al.  Haptic rendering for dental training system , 2009, Science in China Series F: Information Sciences.

[6]  Siriwan Suebnukarn,et al.  Augmented reality haptics system for dental surgical skills training , 2010, VRST '10.

[7]  Hong-Tzong Yau,et al.  Development of a Dental Training System Based on Point-based Models , 2006 .

[8]  Yu Zhang,et al.  PR OO Anatomy-based face reconstruction for animation using multi-layer deformation , 2004 .

[9]  J. T. ten Bosch,et al.  The absorption and scattering of light in bovine and human dental enamel , 2006, Calcified Tissue Research.

[10]  Laehyun Kim,et al.  Haptic interaction and volume modeling techniques for realistic dental simulation , 2006, The Visual Computer.

[11]  Pat Hanrahan,et al.  Reflection from layered surfaces due to subsurface scattering , 1993, SIGGRAPH.

[12]  R A Groenhuis,et al.  HeNe-Laser Light Scattering by Human Dental Enamel , 1995, Journal of dental research.

[13]  David Salesin,et al.  Modeling and Animating Realistic Faces from Images , 2002, International Journal of Computer Vision.

[14]  Jacob Rudolf Zijp.  Optical properties of dental hard tissues , 2001 .

[15]  Wan-Chun Ma,et al.  The Digital Emily Project: Achieving a Photorealistic Digital Actor , 2010, IEEE Computer Graphics and Applications.

[16]  Dangxiao Wang,et al.  Development of dental training system with haptic display , 2003, The 12th IEEE International Workshop on Robot and Human Interactive Communication, 2003. Proceedings. ROMAN 2003..

[17]  Charl P. Botha,et al.  New technique for transfer function specification in direct volume rendering using real-time visual feedback , 2002, SPIE Medical Imaging.

[18]  Julie Dorsey,et al.  Rendering of Wet Materials , 1999, Rendering Techniques.

[19]  Joe Michael Kniss,et al.  Multidimensional Transfer Functions for Interactive Volume Rendering , 2002, IEEE Trans. Vis. Comput. Graph..

[20]  C. R. Hoffman,et al.  Illumination and Reflection Maps : Simulated Objects in Simulated and Real Environments Gene , 1984 .

[21]  Steve Marschner,et al.  A practical model for subsurface light transport , 2001, SIGGRAPH.

[22]  Mike Bailey,et al.  A physical rendering model for human teeth , 2010, SIGGRAPH '10.

[23]  L. C. Henyey,et al.  Diffuse radiation in the Galaxy , 1940 .

[24]  J. Featherstone,et al.  Nature of light scattering in dental enamel and dentin at visible and near-infrared wavelengths. , 1995, Applied optics.

[25]  Gregor Hofer,et al.  Carnival: a modular framework for automated facial animation , 2010, SIGGRAPH '10.

[26]  Ned Greene,et al.  Environment Mapping and Other Applications of World Projections , 1986, IEEE Computer Graphics and Applications.

[27]  Paul S. Heckbert,et al.  Creating Raster Omnimax Images from Multiple Perspective Views Using the Elliptical Weighted Average Filter , 1986, IEEE Computer Graphics and Applications.