Experimentally Measured MTF's Associated With Imaging Through Turbid Water

N Witherspoon; M Strand; J Holloway Jr.; B Price; D Brown; R Miller; L Estep

doi:10.1117/12.945744

12 August 1988 Experimentally Measured MTF's Associated With Imaging Through Turbid Water

N Witherspoon, M Strand, J Holloway Jr., B Price, D Brown, R Miller, L Estep

Proceedings Volume 0925, Ocean Optics IX; (1988) https://doi.org/10.1117/12.945744
Event: 1988 Technical Symposium on Optics, Electro-Optics, and Sensors, 1988, Orlando, FL, United States

Abstract

One factor which affects the ability to image an underwater object from the atmosphere is water turbidity. The performance of an imaging system is often expressed by the limiting resolution which is determined from the contrast transfer function (CTF). The image quality is usually expressed in terms of the modulation transfer function (MTF). This paper presents the results from carefully controlled laboratory experiments to determine the CTF's and the MTF's of a turbid water medium for Jackson turbidity units (JTU's) ranging from 0 to 24. MTF's are generated from a narrow strip target and CTF's are generated from standard resolution bar targets. MTF results are compared with earlier work and CTF's calculated from MTF's are compared with measured CTF's.

Citation Download Citation

N Witherspoon, M Strand, J Holloway Jr., B Price, D Brown, R Miller, and L Estep "Experimentally Measured MTF's Associated With Imaging Through Turbid Water", Proc. SPIE 0925, Ocean Optics IX, (12 August 1988); https://doi.org/10.1117/12.945744

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