activity
20172023
most citedCenter of circle after perspective transformation

5 citations · 10 across the 5 of their papers we have counts for

collaborators

6 papers

cs.GR2023

Differentiable Shadow Mapping for Efficient Inverse Graphics

Markus Worchel, Marc Alexa

We show how shadows can be efficiently generated in differentiable rendering of triangle meshes. Our central observation is that pre-filtered shadow mapping, a technique for approx…

cs.CG2022★ 4 cited

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…

cs.DS2020★ 1 cited

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…

cs.CV2019★ 5 cited

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…

cs.GR2018

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…

q-bio.NC2017

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…