Extended Depth of Field Catadioptric Imaging Using Focal Sweep

no code implementations • ICCV 2015 • Ryunosuke Yokoya, Shree K. Nayar

We show that while the IPSF is spatially varying when a curved mirror is used, it remains quasi depth-invariant over the wide field of view of the imaging system.

SpeDo: 6 DOF Ego-Motion Sensor Using Speckle Defocus Imaging

no code implementations • ICCV 2015 • Kensei Jo, Mohit Gupta, Shree K. Nayar

We develop a theoretical model for speckle flow (motion of speckle as a function of sensor motion), and show that it is quasi-invariant to surrounding scene's properties.

Motion Estimation Optical Flow Estimation +1

AirCode: Unobtrusive Physical Tags for Digital Fabrication

no code implementations • 18 Jul 2017 • Dingzeyu Li, Avinash S. Nair, Shree K. Nayar, Changxi Zheng

We present AirCode, a technique that allows the user to tag physically fabricated objects with given information.

Object Robotic Grasping +1

Trapping Light for Time of Flight

no code implementations • CVPR 2018 • Ruilin Xu, Mohit Gupta, Shree K. Nayar

We propose a novel imaging method for near-complete, surround, 3D reconstruction of geometrically complex objects, in a single shot.

3D Reconstruction