By J.E. Watson and O. Zielinski (Eds.)
Using optical method, instrumentation and photonics units for imaging, imaginative and prescient and optical sensing is of accelerating value in figuring out our marine setting. Subsea optics could make a massive contribution to the security and sustainable administration of ocean assets and give a contribution to tracking the reaction of marine structures to weather swap. this crucial publication offers an authoritative assessment of key rules, applied sciences and their applications.
The e-book is split into 3 elements. the 1st half presents a basic advent to the major strategies in subsea optics and imaging, imaging applied sciences and the improvement of ocean optics and color research. half reports using subsea optics in environmental research. An creation to the ideas of underwater mild fields is via an summary of colored dissolved natural topic (CDOM) and an evaluate of foodstuff within the water column. This part concludes with discussions of the houses of subsea bioluminescence, damaging algal blooms and their influence and at last an overview of optical recommendations for learning suspended sediments, turbulence and combining within the marine surroundings. half 3 studies subsea optical structures applied sciences. A normal evaluation of imaging and visualisation utilizing traditional images and video leads onto complex thoughts like electronic holography, laser line-scanning and range-gated imaging in addition to their use in managed statement structures or worldwide remark networks. This part additionally outlines recommendations like Raman spectroscopy, hyperspectral sensing and imaging, laser Doppler anemometry (LDA) and particle photograph velocimetry (PIV), optical fibre sensing and LIDAR platforms. eventually, a bankruptcy on fluorescence methodologies brings the quantity to a close.
With its special editor and overseas group of individuals, Subsea optics and imaging is a regular reference for these discovering, constructing and utilizing subsea optical applied sciences in addition to environmental scientists and organizations excited about tracking the marine environment.
- Provides an authoritative evaluate of key rules, applied sciences and their applications
- Outlines the foremost ideas in subsea optics and imaging, imaging applied sciences and the improvement of ocean optics and color analysis
- Reviews the homes of subsea bioluminescence, destructive algal blooms and their impact
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Additional resources for Subsea Optics and Imaging
We can see the blue in the ocean, the brown in the rivers, the black in the puddles, and the transparency (the first grade of turbidity, according to Goethe, 1810) of a raindrop. At the time of writing his colour theory, Goethe remarks: At this moment people prefer a more common theoretical consent, turning it off with either one or the other explanation of phenomena without taking the trouble to learn about the discrete and from there on building towards such a theory. Another stimulus for writing this chapter is as an encomium to the admirable versatility of scientists from before the twentieth century, whose focus was to understand the mechanisms responsible for the colouring of natural waters.
Measurement accuracy is limited, particularly along the camera axes. Stereo-cameras though need no laser, are cheaper and have a smaller footprint. When quantitatively calibrated with a reference dimension added, stereo-photogrammetry allows measurement of 3D locations and object size. The technology is mature, but data analysis is routine at this stage. Surface texture is used to register images between cameras but scenes need to display sufficient texture. Some useful and recent works on stereo-photogrammetry and its application include Friedman et al.
Schnars U and Jüptner W (1994) ‘Direct recording of holograms by a CCD target and numerical reconstruction’, Appl. Optics, 33, 179–181. Schulz J, Barz K, Mengedoht D, Hanken T, Lilienthal H, Rieper N, Hoops J, Vogel K and Hirche HJ (2009) ‘Lightframe on-sight key species investigation (LOKI)’, Proc OCEANS’09, 1–4244–2523–5/09, Bremen, IEEE. Schulz J, Barz K, Ayon P, Ludtke A, Zielinski O, Mengedoht D and Hirche HJ (2010) ‘Imaging of plankton specimens with the lightframe on-sight keyspecies investigation (LOKI) system’, J.
Subsea Optics and Imaging by J.E. Watson and O. Zielinski (Eds.)