9 December 2005 Development of television camera for detecting oil film floating on the ocean
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Proceedings Volume 6024, ICO20: Optical Devices and Instruments; 60240R (2005) https://doi.org/10.1117/12.666833
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China
A television camera system, which automatically picks out exclusive images of the oil at real time, is described. This system essentially consists of two optical band pass filters (BPFs), two CCD cameras and image processing software. Due to the multiple-beam interference resulted from the oil film, there is a marked difference of intensity between light reflected from the surface of the sea and that from oil film. By obtaining these different images, the place with oil can be distinguished. Emphasis of our work is to compensate the effect of dispersion of sunlight intensity and CCD's quantum efficiency on oil film detection probability. Laboratory experiments using static glass coated with Al2O3 film have been conducted. The experimental results showed that sensing probability is dependent on the sample thickness, and greatly on the incident angle. This result is agreed quite well with the simulation done our coauthors in earlier work.
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Lianhua Jin, Lianhua Jin, Yoshihiro Yoshida, Yoshihiro Yoshida, Kuniharu Takizawa, Kuniharu Takizawa, } "Development of television camera for detecting oil film floating on the ocean", Proc. SPIE 6024, ICO20: Optical Devices and Instruments, 60240R (9 December 2005); doi: 10.1117/12.666833; https://doi.org/10.1117/12.666833

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