In:
ZooKeys, Pensoft Publishers, Vol. 759 ( 2018-05-17), p. 1-27
Kurzfassung:
Digitization of natural history collections is a major challenge in archiving biodiversity. In recent years, several approaches have emerged, allowing either automated digitization, extended depth of field (EDOF) or multi-view imaging of insects. Here, we present DISC3D: a new digitization device for pinned insects and other small objects that combines all these aspects. A PC and a microcontroller board control the device. It features a sample holder on a motorized two-axis gimbal, allowing the specimens to be imaged from virtually any view. Ambient, mostly reflection-free illumination is ascertained by two LED-stripes circularly installed in two hemispherical white-coated domes (front-light and back-light). The device is equipped with an industrial camera and a compact macro lens, mounted on a motorized macro rail. EDOF images are calculated from an image stack using a novel calibrated scaling algorithm that meets the requirements of the pinhole camera model (a unique central perspective). The images can be used to generate a calibrated and real color texturized 3Dmodel by ‘structure from motion’ with a visibility consistent mesh generation. Such models are ideal for obtaining morphometric measurement data in 1D, 2D and 3D, thereby opening new opportunities for trait-based research in taxonomy, phylogeny, eco-physiology, and functional ecology.
Materialart:
Online-Ressource
ISSN:
1313-2970
,
1313-2989
DOI:
10.3897/zookeys.759.24584
DOI:
10.3897/zookeys.759.24584.figure1
DOI:
10.3897/zookeys.759.24584.figure10
DOI:
10.3897/zookeys.759.24584.figure11
DOI:
10.3897/zookeys.759.24584.figure12
DOI:
10.3897/zookeys.759.24584.figure13
DOI:
10.3897/zookeys.759.24584.figure14
DOI:
10.3897/zookeys.759.24584.figure15
DOI:
10.3897/zookeys.759.24584.figure16
DOI:
10.3897/zookeys.759.24584.figure17
DOI:
10.3897/zookeys.759.24584.figure18
DOI:
10.3897/zookeys.759.24584.figure2
DOI:
10.3897/zookeys.759.24584.figure3
DOI:
10.3897/zookeys.759.24584.figure4
DOI:
10.3897/zookeys.759.24584.figure5
DOI:
10.3897/zookeys.759.24584.figure6
DOI:
10.3897/zookeys.759.24584.figure7
DOI:
10.3897/zookeys.759.24584.figure8
DOI:
10.3897/zookeys.759.24584.figure9
DOI:
10.3897/zookeys.759.24584.suppl1
DOI:
10.3897/zookeys.759.24584.suppl2
DOI:
10.3897/zookeys.759.24584.suppl3
Sprache:
Unbekannt
Verlag:
Pensoft Publishers
Publikationsdatum:
2018
ZDB Id:
2445640-8
SSG:
12
