Circle Numbers for Multi-Material Surface Completion

Ziyu Wei, Christian Hafner, Aleksei Kalinov, Peter Synak, Chris Wojtan

Computer Graphics Forum (Symposium on Geometry Processing 2026)

We introduce a new integral formulation of this problem, which assigns confidence scores that points are inside or outside, given incomplete boundary geometry. Our new geometric construction is unexpectedly linked to both the well-established generalized winding number (GWN) and pseudonormal methods for geometry completion, and it provably reduces to either one of them for specific values of a control parameter.

Fracture-Based Cut Computation for Parametrization

Ziyu Wei, Dylan Rowe, Oded Stein

Siggraph 2026 Poster

We introduce a method for making cuts to manifold surfaces of arbitrary topology in order to make them flattenable for UV parametrization.

SplatPose: On-Device Outdoor AR Pose Estimation Using Gaussian Splatting

Weiwu Pang, Rajrup Ghosh, Jiawei Yang, Ziyu Wei, Branden Leong, Yue Wang, Ramesh Govindan

In Proceedings of the 33rd ACM International Conference on Multimedia Sep 2025

We develop SplatPose, a novel pose estimation technique that uses a data-driven 3D modeling technique called Gaussian Splatting. SplatPose uses a trained Gaussian Splatting model to render an image at an estimated device location, then matches features with the camera image to estimate pose.