Presentation + Paper
5 March 2021 A digital neutral density filter for image capture
Gary D. Sharp, Dave Coleman
Author Affiliations +
Abstract
An architecture for a wide angle-of-view (AOV) liquid-crystal based digital-neutral-density (DND) filter is proposed and analyzed. The DND filter is a unique arrangement of liquid crystal display materials which shows promise for use at the input of ultra-wide-angle image capture lenses. Relevant platforms include drones, action video cameras, DSLRs, and broadcast/cinema cameras.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gary D. Sharp and Dave Coleman "A digital neutral density filter for image capture", Proc. SPIE 11707, Emerging Liquid Crystal Technologies XVI, 1170707 (5 March 2021); https://doi.org/10.1117/12.2577643
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KEYWORDS
Optical filtering

Polarizers

Wave plates

Digital filtering

Image filtering

Optical filters

Digital imaging

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