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The Ranging Imaging Spectrometer (RIS) combines hyperspectral and LADAR imaging capabilities in a single system, allowing both ranging and spectral discrimination to be performed. The RIS couples the Scannerless Range Imaging LADAR developed at Sandia National Laboratories with a Computed Tomographic Imaging Spectrometer (CTIS) operating between 60...
Contexts in source publication
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... Scannerless Range Imaging Laser Ranging And Detection (LADAR) was developed at Sandia National Labs in Albuquerque, NM. An image of the system is contained in Figure 5. The LADAR uses a Time of Flight (TOF) algorithm to determine the range to the scene. ...
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... this test, the laser emitter at 857nm was blocked. The image captured of the coffee cup test by the RIS is shown in Figure 25. in the first image of the second row. ...
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... target was placed at a distance of 3m from the sensor. The target ( Figure 50) contained a step of 10 inches or 25.4cm in the middle section. With step in the Center and 2) With step near the field edge and averaged. ...
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... following figures (Figures 51 and 52) and Table 3 From the images in Figure 51 it can be seen that the CTIS does have an effect on the resolution of the instrument. In figure 52, plots of single lines that cross the step for the on-axis test with and without the CTIS are shown. It can also be seen from these images that the CTIS does have an effect on the edge spread function. ...
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... spectra were then reconstructed using 10 iterations of the MART algorithm, and the results are shown in the following figures (Figures 55-57). From the figures it can be seen that the RIS was able to resolve the two peaks of the test target with ( Figure 56) and without ( Figure 57) the laser emitter on. ...
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... spectra were then reconstructed using 10 iterations of the MART algorithm, and the results are shown in the following figures (Figures 55-57). From the figures it can be seen that the RIS was able to resolve the two peaks of the test target with ( Figure 56) and without ( Figure 57) the laser emitter on. ...
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... spectra were then reconstructed using 10 iterations of the MART algorithm, and the results are shown in the following figures (Figures 55-57). From the figures it can be seen that the RIS was able to resolve the two peaks of the test target with ( Figure 56) and without ( Figure 57) the laser emitter on. ...
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... correct this problem, the responsivity of the image intensifier needs to be removed from the spectral intensity point spread functions before they are used to generate the spectral calibration matrix H. Unfortunately, the camera (including the intensifier) was returned to Sandia and the response of the image intensifier could not be measured directly. However, using a data sheet provided by the image intensifier manufacturer, a quantum efficiency plot was generated using a linear interpolation and is shown in Figure 59. ...
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