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Shumian Xin

2 accepted papers

2021

Defocus Map Estimation and Deblurring From a Single Dual-Pixel Image

Shumian Xin, Neal Wadhwa, Tianfan Xue, Jonathan T. Barron, Pratul P. Srinivasan, Jiawen Chen +2
ICCV 2021poster

We present a method that takes as input a single dual-pixel image, and simultaneously estimates the image's defocus map---the amount of defocus blur at each pixel---and recovers an all-in-focus image. Our method is inspired from recent works that leverage the dual-pixel sensors available in many con…

Cited by 45PDF ↗Scholar ↗
2019

A Theory of Fermat Paths for Non-Line-Of-Sight Shape Reconstruction

Shumian Xin, Sotiris Nousias, Kiriakos N. Kutulakos, Aswin C. Sankaranarayanan, Srinivasa G. Narasimhan, Ioannis Gkioulekas
CVPR 2019oral

We present a novel theory of Fermat paths of light between a known visible scene and an unknown object not in the line of sight of a transient camera. These light paths either obey specular reflection or are reflected by the object's boundary, and hence encode the shape of the hidden object. We prov…

Cited by 215PDF ↗Scholar ↗