Light field super resolution through controlled micro-shifts of light field sensor
Abstract
Light field cameras enable new capabilities, such as post-capture refocusing and aperture control, through capturing directional and spatial distribution of light rays in space. Micro-lens array based light field camera design is often preferred due to its light transmission efficiency, cost-effectiveness and compactness. One drawback of the micro-lens array based light field cameras is low spatial resolution due to the fact that a single sensor is shared to capture both spatial and angular information. To address the low spatial resolution issue, we present a light field imaging approach, where multiple light fields are captured and fused to improve the spatial resolution. For each capture, the light field sensor is shifted by a pre-determined fraction of a micro-lens size using an XY translation stage for optimal performance.
Keywords
Cite
@article{arxiv.1709.09422,
title = {Light field super resolution through controlled micro-shifts of light field sensor},
author = {M. Umair Mukati and Bahadir K. Gunturk},
journal= {arXiv preprint arXiv:1709.09422},
year = {2018}
}