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Extracting skeletal curves from 3D scattered data

A. Verroust, F. Lazarus
1999 Proceedings Shape Modeling International '99. International Conference on Shape Modeling and Applications  
We introduce a method for extracting skeletal curves from an unorganized collection of scattered data points lying on a surface.  ...  The skeletal curves can be used for different applications ranging from surface reconstruction to object recognition.  ...  In [6, 14] the authors propose an implicit reconstruction of shapes from a set of 3D scattered points using the Voronoï graph of the data points to built a geometric skeleton.  ... 
doi:10.1109/sma.1999.749340 dblp:conf/smi/VerroustL99 fatcat:p7ikklw3hngj5nqdxdm2hzbq7u

Extracting skeletal curves from 3D scattered data

Anne Verroust, Francis Lazarus
2000 The Visual Computer  
We introduce a method for extracting skeletal curves from an unorganized collection of scattered data points lying on a surface.  ...  The skeletal curves can be used for different applications ranging from surface reconstruction to object recognition.  ...  In [6, 14] the authors propose an implicit reconstruction of shapes from a set of 3D scattered points using the Voronoï graph of the data points to built a geometric skeleton.  ... 
doi:10.1007/pl00007210 fatcat:whu6tnowpvct5mfode5fam6fqa

Kinect User Authentication using Multimodal Biometric

A. Saravana Priya, Rajeshwari Mukesh
2018 Indian Journal of Science and Technology  
Methods/Statistical Analysis: To increase the reliability and robust of the system, we superimpose skeletal biometric features with facial features where data combined using 3D Imaging Technology.  ...  Performance Curves (EPC) are used for performance evaluation.  ...  Figure 1 . 1 Skeletal Joints and Skeletal Dimensions. Figure 2 . 2 Logistic Regression Curve.  ... 
doi:10.17485/ijst/2018/v11i10/121126 fatcat:3gh5a35xifcwrodf52dgqkh2mu

Curve skeleton extraction from incomplete point cloud

Andrea Tagliasacchi, Hao Zhang, Daniel Cohen-Or
2009 ACM SIGGRAPH 2009 papers on - SIGGRAPH '09  
Figure 1 : From a raw scan with significant missing data, our algorithm extracts a complete curve skeleton, shown in the middle.  ...  Abstract We present an algorithm for curve skeleton extraction from imperfect point clouds where large portions of the data may be missing.  ...  The camel and fertility models are from the AIM@SHAPE shape repository and the horse model from the Stanford 3D Scanning Repository. The Victoria and fork models are courtesy of Dr. Andrei Sharf.  ... 
doi:10.1145/1576246.1531377 fatcat:6ebr5la6zvhv3olkklrg6tgvou

Curve skeleton extraction from incomplete point cloud

Andrea Tagliasacchi, Hao Zhang, Daniel Cohen-Or
2009 ACM Transactions on Graphics  
Figure 1 : From a raw scan with significant missing data, our algorithm extracts a complete curve skeleton, shown in the middle.  ...  Abstract We present an algorithm for curve skeleton extraction from imperfect point clouds where large portions of the data may be missing.  ...  The camel and fertility models are from the AIM@SHAPE shape repository and the horse model from the Stanford 3D Scanning Repository. The Victoria and fork models are courtesy of Dr. Andrei Sharf.  ... 
doi:10.1145/1531326.1531377 fatcat:2rdk55t4mretni6tszfiipnipu

Automatic rigging for animation characters with 3D silhouette

JunJun Pan, Xiaosong Yang, Xin Xie, Philip Willis, Jian J Zhang
2009 Computer Animation and Virtual Worlds  
The first step is to extract a coarse 3D curve skeleton and some skeletal joints of a character. This curve skeleton is then refined with a perpendicular silhouette.  ...  According to the connectivity of the skeletal joints, the hierarchical animation skeleton is finally constructed.  ...  All the models used for this paper are from 500 3D-Objects, the Ultimate Human (http:// www.cgcharacter.com/ultimatehuman.html) and the mesh data provided by Robert Sumner and Jovan Popović in the Computer  ... 
doi:10.1002/cav.284 fatcat:bp7knhbc2jfjjh4e5dsa4lx5l4

Skeletal dosimetry in the MAX06 and the FAX06 phantoms for external exposure to photons based on vertebral 3D-microCT images

R Kramer, H J Khoury, J W Vieira, I Kawrakow
2006 Physics in Medicine and Biology  
Additionally the microCT image-based results have been compared with corresponding data from earlier studies for other human phantoms.  ...  In order to use the segmented 3D-microCT images for skeletal dosimetry, spongiosa voxels in the MAX06 and the FAX06 phantom were replaced at runtime by so-called micro matrices representing segmented trabecular  ...  Florida, USA, for the 3D-microCT images of the vertebral bodies they made available for this study, and especially to Dr D Rajon for the patience he showed explaining the voxel effects.  ... 
doi:10.1088/0031-9155/51/24/001 pmid:17148818 fatcat:yoqlv5wrqvcibnuuyb43nd6wr4

A Skeleton-bridged Deep Learning Approach for Generating Meshes of Complex Topologies from Single RGB Images [article]

Jiapeng Tang, Xiaoguang Han, Junyi Pan, Kui Jia, Xin Tong
2019 arXiv   pre-print
This paper focuses on the challenging task of learning 3D object surface reconstructions from single RGB images.  ...  To learn skeleton from an input image, we design a deep architecture whose decoder is based on a novel design of parallel streams respectively for synthesis of curve- and surface-like skeleton points.  ...  The point sets regressed by PSG are sparse and scattered, leading to the difficulty of extracting triangular meshes from them.  ... 
arXiv:1903.04704v2 fatcat:37vgmxqsr5gylezt6bjzkdh44m

A Fire Drill Training System Based on VR and Kinect Somatosensory Technologies

Li Nian Feng, Zhiguo Xiao
2018 International Journal of Online Engineering (iJOE)  
objects in virtual simulation environment, 3D modeling, scene building with Unity, identified human skeletal by Kinect, and using Euclidean distance matching recognition algorithm for body movements,  ...  combined Somatosensory camera Kinect and VR can achieve self-construction and virtual simulation fire drill based on somatosensory interaction; the platform achieves interaction between human and the 3D  ...  The extraction method of a feature is based on the quaternion method, including 3D coordinates and rotation angle for each bone/skeletal point that is represented by four data.  ... 
doi:10.3991/ijoe.v14i04.8398 fatcat:njliv6b4o5fyxdtcfzgzmws2te

Error-based segmentation of cloud data for direct rapid prototyping

G.H. Liu, Y.S. Wong, Y.F. Zhang, H.T. Loh
2003 Computer-Aided Design  
By constructing an intermediate point-based curve model (IPCM), a layer-based RP model is directly generated from the cloud data and served as the input to the RP machine for fabrication.  ...  Second, based on the FPs of each region, an IPCM is constructed, and RP layer contours are then directly extracted from the models.  ...  A 3D skeletal curve is therefore generated, as shown in Fig. 5(a) .  ... 
doi:10.1016/s0010-4485(02)00087-8 fatcat:5rl3g45lvjhk5nrgx2yvkftvnu

Monte Carlo Modeling of Photon Propagation Reveals Highly Scattering Coral Tissue

Daniel Wangpraseurt, Steven L. Jacques, Tracy Petrie, Michael Kühl
2016 Frontiers in Plant Science  
Extraction of Coral Skeleton Optical Properties from Monte Carlo Model To solve the inverse radiative transfer problem for our two layer model, i.e., the extraction of inherent optical properties based  ...  The experimental data are black squares (mean ± SD, n = 13 repetitions). The match between experiment and simulation was based on both the slope and absolute values of the φ(r) curves.  ... 
doi:10.3389/fpls.2016.01404 pmid:27708657 pmcid:PMC5030289 fatcat:gzej2sdv3ja2znj6sh6y43ymyu

Microscale light management and inherent optical properties of intact corals studied with optical coherence tomography [article]

Daniel Wangpraseurt, Steven L Jacques, Niclas Lyndby, Jacob B Holm, Christine Ferrier Pages, Michael Kuhl
2018 bioRxiv   pre-print
,Hydnophora pilosa) no difference was found between tissue and skeletal scattering.  ...  Our results reveal that light scattering between coral species ranges from μs= 3 mm-1(Stylophora pistillata) to μs= 25 mm-1(Echinopora lamelosa).  ...  developed for brain tissues in optogenetics [54] and can 283 now in theory also be developed using 3D segmented tissue and skeletal architectures from OCT scans 284 (Fig.1) [31] combined with data on  ... 
doi:10.1101/376723 fatcat:vspwi5k2ejcwjp4m6ifhsz52de

Bionic 3D printed corals [article]

Daniel Wangpraseurt, Shangting You, Farooq Azam, Gianni Jacucci, Olga Gaidarenko, Mark Hildebrand, Michael Kuhl, Alison G. Smith, Matthew P. Davey, Alyssa Smith, Dimitri D. Deheyn, Shaochen Chen (+1 others)
2019 bioRxiv   pre-print
Corals are characterized by an elastic animal tissue hosting microalgae and a light scattering calcium carbonate skeleton that maximizes light delivery towards otherwise shaded algal-containing tissues4,5  ...  Here, we developed 3D printed bionic corals capable of growing various types of microalgae with cell densities approaching 109 cells mL-1, up to 100 times greater than in liquid culture.  ...  efficient white light scatterers (Extended Data Fig. 2a ).  ... 
doi:10.1101/834051 fatcat:ssqm4c22orclhpddna6hbrlseq

Anatomy of triply-periodic network assemblies: characterizing skeletal and inter-domain surface geometry of block copolymer gyroids

Ishan Prasad, Hiroshi Jinnai, Rong-Ming Ho, Edwin L. Thomas, Gregory M. Grason
2018 Soft Matter  
Mesogeometric anatomy – 2D inter-material surfaces and 1D skeletons – extracted from triply-periodic, double-gyroid network assembled from triblock copolymers.  ...  3D EMT re-  ...  G. ) and JSPS KAKENHI Award Nos. 16H02288 & 16K14001 and Management Expenses Grants for National Universities Corporations from Ministry of Education, Culture, Sports, Science and Technology of Japan (  ... 
doi:10.1039/c8sm00078f pmid:29683466 fatcat:osd2m3nu6rfljlvq3ss6uhevee

Quantitative assessment of automatic reconstructions of branching systems obtained from laser scanning

Frédéric Boudon, Chakkrit Preuksakarn, Pascal Ferraro, Julien Diener, Philippe Nacry, Eero Nikinmaa, Christophe Godin
2014 Annals of Botany  
Highlights: In this work, we propose a method to evaluate and compare different reconstruction methods from laser data using expert reconstruction and a new structural distance.  ...  Extracting skeletal curves from 3d scattered data. Visual Computer 16, 15-25. Livny Y., Yan F., Olson M., Chen B., Zhang H., El-Sana J. 2010.  ...  Reconstructing plant architecture from 3D laser scanner data. Proceedings of the 6th International Workshop on Functional-Structural Plant Models,16-18. Sinoquet H., Rivet P., Godin C., 1997.  ... 
doi:10.1093/aob/mcu062 pmid:24769534 pmcid:PMC4156121 fatcat:yqqr6jbotrbqxm5qvymu4zpy3y
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