Abstract
We propose a spectral imaging method for piecewise “macropixel” objects, which allows a regular digital camera to be converted into a digital snapshot spectral imager by equipping the camera with only a disperser and a demultiplexing algorithm. The method exploits a “multiplexed spectrum” intensity pattern, i.e., the superposition of spectra from adjacent different image points, formed on the image sensor of the digital camera. The spatial image resolution is restricted to a macropixel level in order to acquire both spectral and spatial data (i.e., an entire spectral cube) in a single snapshot. Results of laboratory experiments with a special macropixel object image, composed of small, spatially uniform squares, provide to our knowledge a first verification of the proposed spectral imaging method.
© 2009 Optical Society of America
Full Article | PDF ArticleMore Like This
Michael A. Golub, Amir Averbuch, Menachem Nathan, Valery A. Zheludev, Jonathan Hauser, Shay Gurevitch, Roman Malinsky, and Asaf Kagan
Appl. Opt. 55(3) 432-443 (2016)
Oren Pe’eri, Michael A. Golub, and Menachem Nathan
Appl. Opt. 56(15) 4309-4318 (2017)
Jonathan Hauser, Michael A. Golub, Amir Averbuch, Menachem Nathan, Valery A. Zheludev, and Michael Kagan
Appl. Opt. 59(4) 1058-1070 (2020)