Title
Light warping for enhanced surface depiction
Abstract
Recent research on the human visual system shows that our perception of object shape relies in part on compression and stretching of the reflected lighting environment onto its surface. We use this property to enhance the shape depiction of 3D objects by locally warping the environment lighting around main surface features. Contrary to previous work, which require specific illumination, material characteristics and/or stylization choices, our approach enhances surface shape without impairing the desired appearance. Thanks to our novel local shape descriptor, salient surface features are explicitly extracted in a view-dependent fashion at various scales without the need of any pre-process. We demonstrate our system on a variety of rendering settings, using object materials ranging from diffuse to glossy, to mirror or refractive, with direct or global illumination, and providing styles that range from photorealistic to non-photorealistic. The warping itself is very fast to compute on modern graphics hardware, enabling real-time performance in direct illumination scenarios. Note: Third-Party Material Attribution Third-party material used in ACM Transactions on Graphics 28(3), Article 25 - "Light Warping for Enhanced Surface Depiction," by Vergne, Pacanowski, Barla, Granier, and Schlick - was used without proper attribution. The 3D model used in Figures 1, 3, and 5, as well as in the cover image of this volume of the journal, was downloaded from the Shape Repository of AIM@SHAPE Project (http://shapes.aimatshape.net) and is the property of CNR-IMATI. We regret this oversight.
Year
DOI
Venue
2009
10.1145/1576246.1531331
ACM Trans. Graph.
Keywords
Field
DocType
completion,graphics hardware,real time,rendering,perception,global illumination,human visual system,shading
Graphics,Computer vision,Image warping,Computer graphics (images),Graphics hardware,Computer science,Human visual system model,Image editing,Depiction,Global illumination,Artificial intelligence,Rendering (computer graphics)
Journal
Volume
Issue
ISSN
28
3
0730-0301
Citations 
PageRank 
References 
34
1.41
24
Authors
5
Name
Order
Citations
PageRank
Romain Vergne1999.68
Romain Pacanowski2888.22
Pascal Barla355329.07
Xavier Granier435728.97
Christophe Schlick561249.06