Abstract

Recent research and development on uncooled 2-D pyroelectric detector arrays makes possible new image processing applications. Pyroelectric detectors are fundamentally different from other detectors in that they are AC-mode devices: they respond only to variations in the incident light intensity and produce no detectable output for a constant input irradiance.¹ A rotating chopper is typically placed in front of a pyroelectric camera to modulate the incident radiation and thereby produce a signal proportional to the incident image scene intensity.

© 1997 Optical Society of America