FLIR SC2500 PDF

Yozshucage In conclusion, SWIR imaging allows using algorithms designed for analyzing visible images [2]. Another interesting point is that the phenomenon of nightglow, which is a very weak emission of light in the upper atmosphere, is more radiant in SWIR spectrum. For example, hairs are more reflective in SWIR spectrum. We observe in Figure 5 that the person disappears in the fog in the visible image while the same person is still visible in the SWIR image 2. This test was done at indoor in a room of 15m2.

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Yozshucage In conclusion, SWIR imaging allows using algorithms designed for analyzing visible images [2]. Another interesting point is that the phenomenon of nightglow, which is a very weak emission of light in the upper atmosphere, is more radiant in SWIR spectrum.

For example, hairs are more reflective in SWIR spectrum. We observe in Figure 5 that the person disappears in the fog in the visible image while the same person is still visible in the SWIR image 2. This test was done at indoor in a room of 15m2. The sensitivity bandwidth is comprised between 0. The duration of test is nine minutes. In video analytics, the SWIR imaging has advantages for extracting and locating features by using algorithms designed for visible spectrum.

A pass-band filter was added to the optical system of the FLIR camera for selecting the spectrum centered at wavelength around 1. This technology could be used by the firefighters for seeing through the smoke during an intervention. The results are presented below. For this test, we used a fog machine which can produce 40m3 of artificial fog per minute. The SWIR imaging is used in perimeter surveillance for seeing through fog, haze, dust and smoke.

As shows in Figure 3, the maximum radiant of nightglow in SWIR spectrum is similar at the radiant measured at 0. A future experimentation would consist in generating images in SWIR spectrum of scenes with smoke in real conditions.

As presented in the theoretical part, an array sensor, composed of InGaAs, could produce images of a fpir with poor visibility such as a scene with haze, fog and smoke.

September th, Toulouse, Rameshwar M September 27, at 9: The experimentations, realized in October,show that persons are still detectable through artificial fog at indoor and outdoor conditions. For this test, we used a fog machine which can produce m3 of artificial fog per minute. This test was done at outdoor in a garden composed of trees, grass and one path.

In this work, the fog was simulated by machines. These results are in agreement with previous works [3][4]. Image Analysis and Processing. Moreover, if the artificial fog is too dense 3the two persons in the background are only detectable in IR image 3. The duration of test is 30 minutes. The nightglow phenomenon allows also producing an image by night. Related Articles

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