Tufa associated with karst features in a fracture-system fed by meteoric water, Araripe basin, NE Brazil

Diniz, Jaqueline Lopes; Tognoli, Francisco Manoel Wohnrath; Claes, Hannes; Miranda, Tiago Siqueira de; Neumann, Volker; Sial, Alcídes N.; Leonardo, Campos Inocencio; Souza, Laís Vieira de

doi:10.1016/j.jsames.2022.103772

Cited by 2 publications

(1 citation statement)

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“…It has been used for some time by several authors in different areas of Geosciences [10,12,14,[19][20][21] The three-dimensional reconstruction of objects is not a new topic. It has been used for some time by several authors in different areas of Geosciences [10,12,14,[19][20][21], varying from simple uses to more complex ones, including the extraction of structural geology information such as orientations, dip and strike [6,[21][22][23][24][25][26][27], fractures [6,[28][29][30] and mapping different geological types of rocks from Digital Outcrop Models (DOM) [31,32].…”

Section: Technology State Of the Art And Backgroundmentioning

confidence: 99%

3-D Reconstruction of Rock Samples via Structure-From-Motion for Virtual Reality Applications: A Methodological Proposal

et al. 2022

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This article presents a methodological proposal for the three-dimensional reconstruction of rock samples via structure-from-motion. The presented methodological steps aimed to provide a reproducible workflow to create virtual rock samples to be applied in virtual applications. The proposed methodology works as a how-to guide as well as a preemptive troubleshooting guide for the complete process. Four geologists with different scholar levels volunteered to test this methodological proposal, applying it to three rock samples as the methodology steps were provided in an inverse-proportional manner to the graduate level. When analyzing the results of the performed reconstructions, all analyzed elements presented a proportional reduction due to the lack of information provided. An initial questionnaire was applied to verify the difficulties encountered, and subsequently, all volunteers received the complete methodology. In the second reconstruction, the results were equivalent to those obtained initially with the complete methodology. A technology acceptance model questionnaire was applied to determine the perception of utility and ease of use of the presented methodology. In both cases the results presented themselves in a positive way, indicating that the methodology was able to solve the problems found simply and objectively through a repeatable workflow.

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