73 citations · 318 across the 25 of their papers we have counts for
4 papers · 1 filter
Learning to Separate Multiple Illuminants in a Single Image
Zhuo Hui, Ayan Chakrabarti, Kalyan Sunkavalli +1
We present a method to separate a single image captured under two illuminants, with different spectra, into the two images corresponding to the appearance of the scene under each i…
Signal Processing Based Pile-up Compensation for Gated Single-Photon Avalanche Diodes
Adithya K. Pediredla, Aswin C. Sankaranarayanan, Mauro Buttafava +2
Single-photon avalanche diode (SPAD) based transient imaging suffers from an aberration called pile-up. When multiple photons arrive within a single repetition period of the illumi…
Towards Multifocal Displays with Dense Focal Stacks
Jen-Hao Rick Chang, B. V. K. Vijaya Kumar, Aswin C. Sankaranarayanan
We present a virtual reality display that is capable of generating a dense collection of depth/focal planes. This is achieved by driving a focus-tunable lens to sweep a range of fo…
KRISM --- Krylov Subspace-based Optical Computing of Hyperspectral Images
Vishwanath Saragadam, Aswin C. Sankaranarayanan
We present an adaptive imaging technique that optically computes a low-rank approximation of a scene's hyperspectral image, conceptualized as a matrix. Central to the proposed tech…