{'fraction_non_alphanumeric': 0.024967148488830485, 'fraction_numerical': 0.005256241787122208, 'mean_word_length': 5.743362831858407, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Correction and use of inflight hyperspectral data

Pushbroom hyperspectral imagers (HSIs) are being increasingly used for aerial vegetative and/or geological ground mapping1. There is also considerable interest in using hyperspectral imagers for aerial surveillance and military targeting2. The Optics and Lasers Department of the Advanced Technology Centre (ATC) of BAE Systems has been working on these problems for several years3. To this end a number of spatial and spectral detection algorithms have been developed, based on change detection, matched filtering and anomaly detection4. The department owns several visible (VIS) and short wave infrared (SWIR) hyperspectral cameras systems, with different resolutions, field of views, and operational speeds.