Media survey apparatus and method using thermal imagery

Details Media survey apparatus and method using thermal imagery Media survey apparatus and method using thermal imagery

G - Physics

01

N

340/124.5

G01N 21/84 (2006.01)

Patent

CA 1226642

Abstract of the Disclosure A survey method and apparatus for monitoring visual obser- vation of a transitionally viewed display. The procedure includes transmitting infrared radiation from behind the display and directed at the path of travel of a moving observer. A radiation detector receives reflected radiation and generates a thermal image corresponding to radiance variations. Retinal eye re- flection from the observer is readily distinguishable in the thermal image and provides a positive indication that the ob- server's line of sight is vectored upon the display.

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