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- W2052805401 abstract "Hyperspectral reflectance imaging in the visible and NIR spectral ranges has considerable utility for revealing spatialand chemical complexity in both biological systems and manufactured products. Conventional imaging systems arebased on broad-band illumination in tandem with a spectrometer or tunable filter placed between the sample and thedetector. These systems are typically slow (require seconds of integration per wavelength step), and the CW broad-bandsource can cause significant heating of the sample. An alternative method is to use a tunable, pulsed, high-peak-power(low average power) source coupled with a broad-band detector. This approach offers a reduction in data acquisitiontime, the inherent ability to stop motion, and data collection at ambient temperature. An integrated system based on a 5-ns pulsed laser tunable from 430 nm to 2150 nm has been used to obtain hyperspectral images in both the visible andNIR spectral ranges. A number of camera/lens options allow for varied spectral bandwidths and the FOV, ranging from11 × 15 mm2 to 15 × 20 cm2. An entire hyperspectral image stack can be collected in as little as 20 s. This method,allowing fast, room-temperature data acquisition, has sufficient sensitivity to produce data that can be successfullyprocessed using spectral derivatives and multivariate analysis. We discuss several applications, both in vivo andotherwise, of this alternative approach to visible/NIR hyperspectral imaging." @default.
- W2052805401 created "2016-06-24" @default.
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- W2052805401 date "2009-05-01" @default.
- W2052805401 modified "2023-10-18" @default.
- W2052805401 title "Applications of spectral imaging using a tunable laser source" @default.
- W2052805401 cites W1489663593 @default.
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- W2052805401 doi "https://doi.org/10.1117/12.818147" @default.
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