Calculating 3D rugosity maps for complex habitat scans

Beregovyi, Kindrat; Dijkstra, Jennifer A.; Butkiewicz, Thomas

doi:10.3389/fmars.2025.1449332

i

Calculating 3D rugosity maps for complex habitat scans

2025
By Beregovyi, Kindrat ; Dijkstra, Jennifer A. ; Butkiewicz, Thomas

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Journal Title:

Frontiers in Marine Science
Personal Author:

Beregovyi, Kindrat ; Dijkstra, Jennifer A. ; Butkiewicz, Thomas
NOAA Program & Office:

NOS (National Ocean Service) ; CoRIS (Coral Reef Information System)
Description:

Advances in 3D scanning and reconstruction techniques, such as structure-from-motion, have resulted in an abundance of increasingly-detailed 3D habitat models. However, many existing methods for calculating structural complexity of these models use 2.5D techniques that fail to capture the details of truly 3D models with overlapping features. This paper presents novel algorithms that extend traditional rugosity metrics to generate multi-scale rugosity maps for complex 3D models. Models are repeatedly subdivided for local analysis using multiple 3D grids, which are jittered to smooth results and suppress extreme values from edge cases and poorly-fit reference planes. A rugosity-minimizing technique is introduced to find optimal reference planes for the arbitrary sections of the model within each grid cell. These algorithms are implemented in an open-source analysis software package, HabiCAT 3D (Habitat Complexity Analysis Tool), that calculates and visualizes high-quality 3D rugosity maps for large and complex models. It also extends fractal dimension and vector dispersion complexity metrics, and is used in this paper to evaluate and discuss the appropriateness of each metric to various coral reef datasets.
Keywords:

Coral Reefs And Islands Fractals Coral Reefs And Islands Application Coral Reefs Fractal Dimension Landscape Rugosity Structural Complexity
Source:

Front. Mar. Sci. 12:1449332
DOI:

https://doi.org/10.3389/fmars.2025.1449332
Format:

PDF
Document Type:

Journal Article
Funding:

Grant no. NA20NOS4000196
License:

https://creativecommons.org/licenses/by/4.0/
Rights Information:

CC BY
Compliance:

Submitted
Main Document Checksum:

urn:sha-512:6d9ead2c51775154eed458b923e53a6a1d3d90dd311374bc4892b5a9710977c4a87d9188537db27cd1748e0b499d298673a2a8e720dd6c6021fc4167739212c8
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https://repository.library.noaa.gov/view/noaa/70091/noaa_70091_DS1.pdf
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