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Calibration And Testing A Low-Cost Spectrometer For Ground Measurement Mustafa
[Full Text]
AUTHOR(S)
Mustafa Mathanna Najam Shahrabani, Shattri Bin Mansor
KEYWORDS
Low-cost spectrometer, image classification, spectral library, spectrometer calibration, hand held spectrometer, ground measurements, Hyperspectral sensors.
ABSTRACT
Over recent years, a hand held spectrometer has emerged, which is divided into three classes as per their cost and uses: smartphone spectrometer; miniature spectroscopic; and low-cost spectrometer products marketed directly to consumers. The integration between spectroscopic devices and satellite imagery helps to enhance and increase the accuracy in post-processing steps of remote sensing imagery. This paper tries to test the capability of the device using an inexpensive spectrometer as ground measurements to improve the accuracy of imaging classification. Thereby, a low-cost spectrometer device has proposed in this research to test and evaluate the performance by comparing the spectral signature with USGS spectral library. The main goal of this research is to calibrate and test (accuracy and performance) of handheld spectrometer AS7265X multi-spectral sensor device for urban area application in order to enhance the remote sensing imagery classification and evaluate the accuracy of the AS7265X spectrometer device by comparing it with spectral library. Hence, the results show good discrimination proficiency for AS7265X handheld spectrometer for leaf vegetation in the field. The above results verified the reliability of the AS7265X through field measurement with USGU spectral library extracted for ENVI software in order to compare the spectral signature and obtain the accuracy.
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