Projects

Pfister Lab

Time-Lapse Video Factorization

Image with modified reflectance
We developed a method for converting time-lapse photography captured with outdoor cameras into Factored Time-Lapse Video (FTLV): a video in which time appears to move faster (i.e., lapsing) and where data at each pixel has been factored into shadow, illumination, and reflectance components. The factorization allows a user to easily relight the scene, recover a portion of the scene geometry (normals), and to perform advanced image editing operations. Our method is easy to implement, robust, and provides a compact representation with good reconstruction characteristics. more »

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Zickler Lab

Shape from Specular Reflections

A curved specular surfaces presents an observer with a distorted view of its environment, and these distortions contain rich information about its shape. Humans seem to make use of this visual cue, but for the most part, machines do not. more »

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