We present a new passive depth detection method for quasi-monochromatic and spatially incoherent objects. We utilize the wavefront discrimination properties of a volume holographic pupil combined with a measurement of the degree of coherence of the diffracted field. Depth detection is posed as the Bayesian hypothesis testing on the outcome of the coherence measurement. We present the analysis of our proposed optical system and experimental results confirming binary depth discrimination with high confidence for featureless objects.
© 2008 Optical Society of America
Original Manuscript: September 11, 2008
Manuscript Accepted: October 20, 2008
Published: December 19, 2008
Se Baek Oh and George Barbastathis, "Passive quasi-monochromatic depth discrimination using a coherence imager with volume holographic pupil," Appl. Opt. 47, 6881-6888 (2008)