Publications (7)
Radiative Backpropagation with Non-Static Geometry
Markus Worchel, Ugo Finnendahl, Marc Alexa
Radiative backpropagation-based (RB) methods efficiently compute reverse-mode derivatives in physically-based differentiable rendering by simulating the propagation of differential…
Tutte Embeddings of Tetrahedral Meshes
Marc Alexa
Tutte's embedding theorem states that every 3-connected graph without a or minor (i.e. a planar graph) is embedded in the plane if the outer face is in convex posit…
Iteratively reweighted greedy set cover
Marc Alexa
We empirically analyze a simple heuristic for large sparse set cover problems. It uses the weighted greedy algorithm as a basic building block. By multiplicative updates of the wei…
ABC: A Big CAD Model Dataset For Geometric Deep Learning
Sebastian Koch, Albert Matveev, Zhongshi Jiang +6
We introduce ABC-Dataset, a collection of one million Computer-Aided Design (CAD) models for research of geometric deep learning methods and applications. Each model is a collectio…
Maps of Visual Importance
Xi Wang, Marc Alexa
The importance of an element in a visual stimulus is commonly associated with the fixations during a free-viewing task. We argue that fixations are not always correlated with atten…
Center of circle after perspective transformation
Xi Wang, Albert Chern, Marc Alexa
Video-based glint-free eye tracking commonly estimates gaze direction based on the pupil center. The boundary of the pupil is fitted with an ellipse and the euclidean center of the…