ART GLEASON | ArchiveMosaics - archived posts and projects
14.5 Gigapixel mosaic
I have a new result from our large area survey at the Flower Garden Banks National Marine Sanctuary in Jun 2019. We mapped an area of over 100 x 100 m and have been able to render that in a single 2.5-D point cloud as well as a 2-D orthomosaic. This is the largest single mosaic our group has created to date: 14.5 Gigapixels! Read more...
Large-area mosaics
Our team has been steadily working towards increasing the area that can be mosaicked at high resolution. This page summarizes results over the years, giving an indication of the progress and current limits of the technology. Read more...
Hurricane Irma Assessment
Damage assessment in the wake of hurricane Irma needed data from before the storm for comparison. This post showed the distribution of sites in our archive across the gradient of predicted impact in S. Florida. Read more...
Mosaic Demonstration Project
Mosaicked images of reef plots have inherent characteristics that circumvent the limitations of current state-of-the-art methods in coral reef monitoring (i.e., diver transects, photo-quadrats) while simultaneously maintaining the strengths of a diver-based approach. Testing this premise was the overall objective of this ESTCP project Read more...
Optics - archived posts and projects
Polarized upwelling BRDF
Models for the unpolarized BRDF have been validated, but variations in the polarization of the upwelling radiance due to the sun angle, viewing geometry, dissolved material, and suspended particles have not been systematically documented. In this work, we simulated the upwelling radiance distribution using a Monte Carlo-based radiative transfer code and measured it using a set of fish-eye cameras with linear polarizing filters. Read more...
MSCAM
We built an underwater multispectral camera to test the hypothesis of whether narrow spectral bands were superior to standard RGB cameras for automated classification of underwater images. Read more...
Oceanic BRDF in Case I and II water
The results suggest that BRDF corrections in Case II water are feasible using single, average, particle scattering phase functions, but that the existing approach using variable particle scattering phase functions is still warranted in Case I water. Read more...
eXtended Reality (XR) - archived posts and projects
UM XR Initiative
Our South Florida Mixed Reality Field Trips application was featured in a story about the new U. Miami extened realtiy (XR) initiative. Watch the video feature and find links to the full story here. Read more...
Mixed Reality Field Trips
A pilot project to explore new ways in which mixed reality in general and the Magic Leap headsets in particular could be used to enrich educational or research endeavors both within the U and beyond. Read more...