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These metrics are especially vital for drones used for ISR missions, and they apply to both thermal and electro-optic (day channel) cameras.<\/p>\n DRI is a universally accepted set of standards that measure the distance at which a sensor can produce an image of a specific target. These standards, initially developed by the US Army in the 1950s, are often used to compare performance between imaging cameras.<\/p>\n \n DRI is calculated using the Johnson criteria, which is based on the number of pixels on the target. According to the Johnson criteria, the minimum resolution required to achieve a 50% probability for an observer to discriminate an object are:<\/p>\n These calculations are based solely on geometrical parameters \u2013 the target size, distance, lens focal length, and camera detector pixel size. Signal level, detector sensitivity, atmospheric conditions, and other factors are not considered.<\/p>\n [\/et_pb_text][et_pb_image src=”https:\/\/elistair.com\/wp-content\/uploads\/2023\/10\/DRI-extract-from-A-Drone-Camera.jpg” title_text=”DRI extract from A Drone Camera” _builder_version=”4.21.0″ _module_preset=”default” global_colors_info=”{}” theme_builder_area=”post_content”][\/et_pb_image][et_pb_text _builder_version=”4.21.0″ _module_preset=”default” text_text_color=”#000000″ text_font_size=”18px” text_line_height=”1.8em” hover_enabled=”0″ global_colors_info=”{}” theme_builder_area=”post_content” sticky_enabled=”0″]<\/p>\n \n The DRI values can vary significantly depending on the specific camera and drone system. However, a common benchmark for a high-performance UAV (EO sensor) will usually be in the following range:<\/p>\n These values are just examples and can vary based on the specific system and conditions.<\/p>\n Elistair carefully selects its cameras by evaluating its DRI metrics through internal testing. By understanding why DRI matters, you can ensure you get the most out of your drone surveillance system.<\/p>\n [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>","protected":false},"excerpt":{"rendered":" How powerful is DRI in drone surveillance ?\u00a0Elistair Team8 minutesShare the articleIn the realm of drone surveillance, Detection, Recognition, and Identification (DRI) represent critical metrics that define the performance of a camera system. These metrics are especially vital for drones used for ISR missions, and they apply to both thermal and electro-optic (day channel) cameras. […]<\/p>","protected":false},"author":1,"featured_media":54218,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[246],"tags":[259],"class_list":["post-37011","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-military-drones","tag-articles"],"yoast_head":"\n
L'\u00e9quipe Elistair<\/p>\nWhat is DRI ? <\/strong><\/h2>\n
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How is DRI Calculated ?<\/strong><\/h2>\n
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Common DRI Values for Cameras and Drones<\/strong><\/h2>\n
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