three marine bacteria, pseudomonas putida ptcc 1664, bacillus cereus  pttc 1665 and pseudomonas pseudoalkaligenes ptcc 1666 isolated from the east anzali wetland sediments of the caspian sea, were resistant to heavy metals of cadmium (cd), nickel (ni) and vanadium (v). pseudomonas pseudoalkaligenes ptcc 1666 was found to be resistant to all 3 metals ni, cd, v. heavy metal uptake was determined ...

Underwater image enhancement plays a critical role in marine industry. Various algorithms are applied to enhance underwater images, but their performance terms of perceptual quality has been little studied. In this paper, we investigate five popular and output quality. To end, have created benchmark, including images enhanced by different ground truth obtained human perception experiments. We s...

A technique was developed to image marine snow particles by scanning confocal laser microscopy (SCLM). This method allows structural and compositional characterization of fully hydrated marine snow particles with minimal disruption of the particle structure. High specificity fluorescent stains permitted sequential imaging of selected polysaccharides (concanavalin A: specific for mannose and glu...

This paper presents improved techniques and applications in mosaicing of underwater video images. The applications are of use to many marine scientists. High resolution seabed maps are created. The improvements in the processing relate to removal of interframe variability and lighting, speed up of the mosaicing process and improved accuracy in the estimation of the transformation parameters. Re...

In this study, the capability of the phase difference standard deviation value (σφc) to distinguish among different dark features over marine polarimetric SAR images is investigated. The σφc, evaluated between the co-polarized terms of the scattering matrix, needs only HH and VV data and can be applied also on dualpolarized SAR sensors such as the ASAR operated on board of the ENVISAT satellite...

Given multiple images that describe chaotic reaction-diffusion dynamics, parameters of a partial differential equation (PDE) model are estimated using autosynchronization, where parameters are controlled by synchronization of the model to the observed data. A two-component system of predator-prey reaction-diffusion PDEs is used with spatially dependent parameters to benchmark the methods descri...

Geographic Information Systems (GIS) was used as a tool to study the spatial characteristics of the coral reefs of Southern Okinawa. The study involved the intensive use two main spatial analysis modules of the GIS namely the image processing module and the decision support system module. Image processing was undertaken on a Landsat satellite image to produce a marine benthic habitat map. This ...