KEYWORDS: High dynamic range imaging, Cameras, Imaging systems, Coded apertures, Sensors, Image processing, Optical simulations, Coded aperture imaging, Photography, Signal to noise ratio
We present a high dynamic range (HDR) imaging system design scheme based on coded aperture technique. This
scheme can help us obtain HDR images which have extended depth of field. We adopt Sparse coding algorithm to
design coded patterns. Then we utilize the sensor unit to acquire coded images under different exposure settings. With
the guide of the multiple exposure parameters, a series of low dynamic range (LDR) coded images are reconstructed. We
use some existing algorithms to fuse and display a HDR image by those LDR images. We build an optical simulation
model and get some simulation images to verify the novel system.
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