An installer needs a camera to monitor a hallway in an office complex. The hallway is 2.5 m (8 ft 2 in) wide. The customer wants to be able to identify people (80 pixels per face). What is the minimum resolution needed to meet this requirement?
To identify people with 80 pixels per face in a hallway that is 2.5 meters wide, a minimum resolution of 1280x720 (720p) is needed. This resolution ensures sufficient pixel density to capture detailed facial features necessary for identification purposes. Given the width of the hallway and the required pixel density, 720p provides the necessary coverage and detail.
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