Wide Dynamic Range by Filtering with Transmissive Liquid Crystal
Hidetoshi Mannami, Ryusuke Sagawa, Yasuhiro Mukaigawa, Tomio Echigo, Yasushi Yagi · Transactions of the Society of Instrument and Control Engineers · 2005
To generate a wide dynamic range image (WDRI), a system which consists of a camera and a liquid crystal filter has been proposed. The system can adaptively control scene radiance using the liquid crystal filter placed in front of the camera. Although the masking effect of the filter blurs, the blurring function was not strictly analyzed. In this paper, the blurring function is estimated using an experimental system. We have confirmed that WDRIs are clearly generated using the blurring function.