Infrared detection, recognition and identification of handheld objects

摘要: A main criterion for comparison and selection of thermal imagers military applications is their nominal range performance. This performance calculated a defined task standardized target environmental conditions. The only standardization available to date STANAG 4347. there based on battle tank in front view. Because modified requirements, this no longer up-to-date. Today, different topics interest are interest, especially differentiation between friend foe identification humans. There direct way differentiate asymmetric scenarios, but one clue can be that someone carrying weapon. transformed the observer tasks detection: person or not an object, recognition: object long / medium short weapon civil equipment identification: named (e. g. AK-47, M-4, G36, RPG7, Axe, Shovel etc.). These assessed experimentally from results such assessment, standard handheld objects may derived. For first human 13 his chest was recorded at four ranges with IR-dual-band camera. From data, perception experiment prepared. It conducted 17 observers 13-alternative forced choice, unlimited observation time arrangement. test together Minimum Temperature Difference Perceived measurements camera temperature difference critical dimension derived imagery allowed defining according above tasks. consist 2.5 3.5 5 DRI line pairs target, 0.24 m size 1 K difference. values preliminary have refined future. Necessary aspect angles, carriage movement.