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Abhiram Gnanasambandam

4 accepted papers

2026

Diffusion Algorithm for Metalens Optical Aberration Correction

ICASSP 2026oral

Metalenses offer a path toward creating ultra-thin optical systems, but they inherently suffer from severe, spatially varying optical aberrations, especially chromatic aberration, which makes image reconstruction a significant challenge. This paper presents a novel algorithmic solution to this probl…

Cited by 0SourcePDFScholar
2020

Dynamic Low-light Imaging with Quanta Image Sensors

ECCV 2020poster

Imaging in low light is difficult because the number of photons arriving at the sensor is low. Imaging dynamic scenes in low-light environments is even more difficult because as the scene moves, pixels in adjacent frames need to be aligned before they can be denoised. Conventional CMOS image sensors…

Cited by 54SourcePDFScholar