Image Quality Evaluation of EO-1 Hyperion Sensor
EO-1 Hyperion高光谱数据的质量评价

This paper conducts the quality evaluation of a Hyperion L1R image of Yangzhou area by the objective image evaluation methods.The main indexes chosen for observation are radiation precision,the amount of information,sharpness,signal to noise ratio(SNR) and so on.It turns out that there are 44 zero bands and 25 water vapor affected bands among the 242 bands of the Hyperion data.The indicators of the remaining 173 bands are relatively moderate,except for those located near the water vapor affected bands,whose SNR are relatively lower.For this reason,it is considered that the environment and atmosphere conditions while acquiring images would affect the exact number of the available bands.As the conclusion,the image quality of the VNIR bands is obviously higher than that of the SWIR bands,and the image quality descends as the wavelength increases generally.The VNIR and SWIR bands before Band 120 possess the optimal image quality while bands after the 130th are of less sense for applications.Real spectral information could be extracted from these bands.After removing the striping noise and the smile effect,Hyperion image data could be used in the fields of agriculture,forestry,geological investigation,petroleum finding,ocean water color research and so on.