A sketch-based system for modeling 3D objects: Applications to taxonomy

Author(s)

Ramos, Saulo ^[1] ; Santos, Charles Morphy D. ^[1] ; Sousa, Mario Costa ^[2] ; Gois, Joao Paulo ^[1]

Affiliation

^[1] Univ Fed Abc, Rua Santa Adelia 166, BR-09210170 Santo Andre, SP - Brazil

^[2] Univ Calgary, 2500 Univ Dr NW, Calgary, AB T2N 1N4 - Canada

• Document type: Journal article
• Source: Zootaxa; v. 5039, n. 4, p. 537-550, SEP 17 2021.
• Web of Science Citations: 0

Abstract

We present a sketch-based system for modeling 3D objects with multiple contours as overlaid structures, allowing users to infer perceivable symmetries and occluded parts of the model prior to its automatic 3D reconstruction. Many approaches for sketch-based interfaces and modeling focus on the final drawing and 3D reconstruction of solid objects, exploring, as inputs, contours; however, when the subject consists of multiple drawings as overlaid structures, as usual in species descriptions, these approaches have to roughly infer or discard occluded parts. Unlike previous sketch-based techniques, we explore a set of 2D visual effects to enhance the visual perception of users while sketching multiple overlaid objects in single-view. The proposed system was applied to general simple zoological and botanical sketches as well as to published descriptions of species of Diptera, demonstrating its usefulness for taxonomy. (AU)

• FAPESP's process: 17/11768-8 - Phylogenetic systematics and biogeography of Diptera in the Atlantic Forest: analysis of form, time and space emphasizing the infraorder Tabanomorpha (Diptera, Brachycera)
• Grantee: Charles Morphy Dias dos Santos
• Support Opportunities: BIOTA-FAPESP Program - Regular Research Grants
• FAPESP's process: 14/11067-1 - Development of methods for interactive modeling 2.5D Cartoon models with lighting support
• Grantee: João Paulo Gois
• Support Opportunities: Regular Research Grants