Deep-sea explorations in search for deep-sea corals and sponges have been taking place in the past using Remote Operated Vehicles (ROV).
The ROV dive tracks are recorded as individual discrete points without taking into consideration the view area of the camera system that is being used by the ROV.
A more generic representation would be a line of the points but still, this would not help at all to spatially represent the areas that the system has been able to view for easy quantification of the amounts or density of corals and sponge that have been viewed in the surveyed locations.
My main goal in this particular study is to help represent the dive tracks as a polygon indicating the view areas of the ROV. This would help in representing the areas that have been surveyed and clearly show those that have not been covered in previous surveys. This way, any future exploration in the deep-sea would focus only on areas that have not been explored and would help save on time as well as help the fishery management councils in making decisions on how the deep-sea is to be exploited.
My main goal is always to enhance repeatability of the process. Conversely, I would kindly wish to hear what thoughts you might be having for this project which I am undertaking. Any feedback or piece of information will be highly appreciated.
`Thanks!
One of my proposals is to use the ImageJ / Fiji 1.46 program. From the videos obtained, it takes out the greatest number of photos where the abundance of organisms is best represented. Open the photos in ImageJ / Fiji 1.46, define a segment and in the option analyze; set scale and define the known or real distance of the segment you defined in the photo and the unit of measure you want, the program automatically divides the known distance between the distance in pixels of the segment plotted and gives you the area of the image. In this way you can quantify the density for different organisms. I attached the ImageJ / Fiji manual 1.46. In relation to the representation on a map I work with the ARGIS 10.5 program. Knowing the coordinates and depths in addition to having quantified the densities by species or groups of organisms you can make polygons where you delimit the areas of intervention depending on the depths or quantities of organisms establishing the differences by colors or other characters. I have attached some Argis manuals.
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