Title:	BoneSplit - a 3D texture painting tool for interactive bone separation in CT images
Authors:	Nysjö, Johan Malmberg, Filip Sintorn, Ida-Maria Nyström, Ingela
Citation:	Journal of WSCG. 2015, vol. 23, no. 1, p. 157-166.
Issue Date:	2015
Publisher:	Václav Skala - UNION Agency
Document type:	článek article
URI:	http://wscg.zcu.cz/WSCG2015/!_2015_Journal_WSCG-No-2.pdf http://hdl.handle.net/11025/17152
ISSN:	1213–6972 (hardcopy) 1213–6980 (CD-ROM) 1213–6964 (online)
Keywords:	segmentace kosti;CT;objemové vykreslování;3D kreslení;náhodná chůze;editace segmentace
Keywords in different language:	bone segmentation;CT;volume rendering;3D painting;random walks;segmentation editing
Abstract in different language:	We present an efficient interactive tool for separating collectively segmented bones and bone fragments in 3D computed tomography (CT) images. The tool, which is primarily intended for virtual cranio-maxillofacial (CMF) surgery planning, combines direct volume rendering with an interactive 3D texture painting interface to enable quick identification and marking of individual bone structures. The user can paint markers (seeds) directly on the rendered bone surfaces as well as on individual CT slices. Separation of the marked bones is then achieved through the random walks segmentation algorithm, which is applied on a graph constructed from the collective bone segmentation. The segmentation runs on the GPU and can achieve close to real-time update rates for volumes as large as 5123. Segmentation editing can be performed both in the random walks segmentation stage and in a separate post-processing stage using a local 3D editing tool. In a preliminary evaluation of the tool, we demonstrate that segmentation results comparable with manual segmentations can be obtained within a few minutes.
Rights:	© Václav Skala - UNION Agency
Appears in Collections:	Volume 23, Number 2 (2015)

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