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Question 5 of 5
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Q5 Single choice

In clear weather. Axis specifies, in accordance with Johnson's criteria, an AXIS Q1921 with a 60 mm lens to have detection range of 1200 m (3900 ft) for a person.
Based on this estimation which of the following is true?

  • A

    An analysis or analytic software is able to detect a person in 1200 m distance with 90% probability

  • B

    A human observer is able to detect a person in 1200 m distance with 50% probability

  • C

    A human observer can discern a person versus a car in 1200 m distance with 90% probability

  • D

    An analysis or analytic software is able to discern a person versus a car in 1200 m distance with 50% probability

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