Digitization of natural objects with micro CT and photographs

Ijiri, Takashi; Todo, Hideki; Hirabayashi, Akira; Kohiyama, Kenji; Dobashi, Yoshinori

doi:10.1371/journal.pone.0195852


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Digitization of natural objects with micro CT and photographs

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/70429

Title:	Digitization of natural objects with micro CT and photographs
Authors:	Ijiri, Takashi Browse this author
	Todo, Hideki Browse this author
	Hirabayashi, Akira Browse this author
	Kohiyama, Kenji Browse this author
	Dobashi, Yoshinori Browse this author →KAKEN DB
Issue Date:	12-Apr-2018
Publisher:	PLOS
Journal Title:	PLoS ONE
Volume:	13
Issue:	4
Start Page:	e0195852
Publisher DOI:	10.1371/journal.pone.0195852
Abstract:	In this paper, we present a three-dimensional (3D) digitization technique for natural objects, such as insects and plants. The key idea is to combine X-ray computed tomography (CT) and photographs to obtain both complicated 3D shapes and surface textures of target specimens. We measure a specimen by using an X-ray CT device and a digital camera to obtain a CT volumetric image (volume) and multiple photographs. We then reconstruct a 3D model by segmenting the CT volume and generate a texture by projecting the photographs onto the model. To achieve this reconstruction, we introduce a technique for estimating a camera position for each photograph. We also present techniques for merging multiple textures generated from multiple photographs and recovering missing texture areas caused by occlusion. We illustrate the feasibility of our 3D digitization technique by digitizing 3D textured models of insects and flowers. The combination of X-ray CT and a digital camera makes it possible to successfully digitize specimens with complicated 3D structures accurately and allows us to browse both surface colors and internal structures.
Rights:	https://creativecommons.org/licenses/by/4.0/
Type:	article
URI:	http://hdl.handle.net/2115/70429
Appears in Collections:	情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 土橋宜典

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