Ruyu Yan will present her General Exam "Nonlinear Perspective Photography via Geometry-aware Scene Completion" on Friday, May 9, 2025 at 1:00 PM in CS 402. Committee Members: Adam Finkelstein (advisor), Felix Heide, Szymon Rusinkiewicz Abstract: Designers of modern mobile cameras aim to capture high-quality images using linear perspective projection. However, this projection often fails to align with users' natural perception, which is influenced by nonlinear phenomena; it also does not support creative composition needs, such as depth compression along a long street or tilt-shift effects. We introduce a computational photography system that enables nonlinear perspective projection as a composition process during capture on mobile devices. Our system reconstructs a low-resolution 3D scene representation using signed distance field fusion, allowing users to explore perspective transformations with interactive preview in the camera viewfinder. During capture, the system guides users to capture additional data to overcome challenges such as occlusions and the limited field of view of the physical lens. We then employ a 2D Gaussian splatting method to reconstruct a geometry proxy of the scene, which we use for warping the captured photos and exporting high-fidelity photos with nonlinear perspective. Reading List: https://docs.google.com/document/d/1yaZAtQX7YuhOO9343ITD-ieHEApp8teCrU9aQCqX... Everyone is invited to attend the talk, and those faculty wishing to remain for the oral exam following are welcome to do so.