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The reflectance values are visualised with a so-called re- flectance image which is generally coded in grey levels. The coding of the individual measured points has been defined in such a way that the reflectance image looks like a black-and-white photograph: highly reflecting (light) points are displayed in a light grey and highly absorbing (dark) points are displayed in dark grey.
Other than range values, reflectance values depend on different factors:
reflectivity of the surface (portion of the reflected laser light)
- distance of the object
- angle of the laser beam on the surface
Both values (range and reflectance value) can be obtained independent of the light conditions in the environment.
Example: historical monument
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Reflectance image
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Example: production plant
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Reflectance image
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