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Nowadays remote sensing plays a very important role in many different study fields, i.e. environmental studies, hydrology,mineralogy, ecosystem studies, etc. One of the key areas of remote sensing applications is water quality monitoring. Understandingand monitoring of the water quality parameters and detecting different water contaminants is an important issue in watermanagement and protection of whole environment and especially the water ecosystem. There are many remote sensing methods tomonitor water quality and detect water pollutants. One of the most widely used method for substance detection with remote sensingtechniques is based on usage of spectral reflectance coefficients. They are usually acquired using discrete methods such asspectrometric measurements. These however can be very time consuming, therefore image-based methods are used more and moreoften. In order to work out the proper methodology of obtaining spectral reflectance coefficients from hyperspectral andmultispectral images, it is necessary to verify the impact of cameras radiometric resolution on the accuracy of determination of them.This paper presents laboratory experiments that were conducted using two monochromatic XEVA video sensors (400–1700 nmspectral data registration) with two different radiometric resolutions (12 and 14 bits). In view of determining spectral characteristicsfrom images, the research team used set of interferometric filters. All data collected with multispectral digital video cameras werecompared with spectral reflectance coefficients obtained with spectroradiometer. The objective of this research is to find the impactof cameras radiometric resolution on reflectance values in chosen wavelength. The main topic of this study is the analysis ofaccuracy of spectral coefficients from sensors with different radiometric resolution. By comparing values collected from imagesacquired with XEVA sensors and with the curves obtained with spectroradiometer it's possible to determine accuracy of imagebasedspectral reflectance coefficients and decide which sensor will be more accurate to determine them for protection of wateraquatic environment purpose

the international archives of the photogrammetry, remote sensing and spatial information sciences/international archives of the photogrammetry, remote sensing and spatial information sciences

Impact of the cameras radiometric resolution on the accuracy of determining spectral reflectance coefficients