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arXiv · 1709.09422

Light field super resolution through controlled micro-shifts of light field sensor

M. Umair Mukati·Bahadir K. Gunturk
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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.

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M. Umair Mukati, Bahadir K. Gunturk. 2018-06-10. Light field super resolution through controlled micro-shifts of light field sensor. https://arxiv.org/abs/1709.09422

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