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BendFields: Regularized Curvature Fields from Rough Concept Sketches
Emmanuel Iarussi, David Bommes, Adrien Bousseau
Article No.: 24
Designers frequently draw curvature lines to convey bending of smooth surfaces in concept sketches. We present a method to extrapolate curvature lines in a rough concept sketch, recovering the intended 3D curvature field and surface normal at each...
The human visual system can operate in a wide range of illumination levels due to several adaptation processes working in concert. For the most part, these adaptation mechanisms are transparent, leaving the observer unaware of his or her absolute...
Complex Luminaires: Illumination and Appearance Rendering
Edgar Velázquez-Armendáriz, Zhao Dong, Bruce Walter, Donald P. Greenberg
Article No.: 26
Simulating a complex luminaire such as a chandelier is expensive and slow, even using state-of-the-art algorithms. A more practical alternative is to use precomputation to accelerate rendering. Prior approaches cached information on an aperture...
Water Wave Animation via Wavefront Parameter Interpolation
Stefan Jeschke, Chris Wojtan
Article No.: 27
We present an efficient wavefront tracking algorithm for animating bodies of water that interact with their environment. Our contributions include: a novel wavefront tracking technique that enables dispersion, refraction, reflection, and...
We describe a technique to generate imagery with improved sharpness for individuals having refractive vision problems. Our method can reduce their dependence on corrective eyewear. It also benefits individuals with normal vision by improving...
Discrete Derivatives of Vector Fields on Surfaces -- An Operator Approach
Omri Azencot, Maks Ovsjanikov, Frédéric Chazal, Mirela Ben-Chen
Article No.: 29
Vector fields on surfaces are fundamental in various applications in computer graphics and geometry processing. In many cases, in addition to representing vector fields, the need arises to compute their derivatives, for example, for solving...
We introduce a novel approach that reconstructs 3D urban scenes in the form of levels of detail (LODs). Starting from raw datasets such as surface meshes generated by multiview stereo systems, our algorithm proceeds in three main steps:...
Exploration of the hyperspectral domain offers a host of new research and application possibilities involving material appearance modeling. In this article, we address these prospects with respect to human skin, one of the most ubiquitous...
Using Nesterov's Method to Accelerate Multibody Dynamics with Friction and Contact
Hammad Mazhar, Toby Heyn, Dan Negrut, Alessandro Tasora
Article No.: 32
We present a solution method that, compared to the traditional Gauss-Seidel approach, reduces the time required to simulate the dynamics of large systems of rigid bodies interacting through frictional contact by one to two orders of magnitude....
RingIt: Ring-Ordering Casual Photos of a Temporal Event
Hadar Averbuch-Elor, Daniel Cohen-Or
Article No.: 33
The multitude of cameras constantly present nowadays redefines the meaning of capturing an event and the meaning of sharing this event with others. The images are frequently uploaded to a common platform, and the image navigation challenge...
We introduce a scheme for real-time nonlinear interpolation of a set of shapes. The scheme exploits the structure of the shape interpolation problem, in particular the fact that the set of all possible interpolated shapes is a low-dimensional...