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Region-based 3D Mesh Compression Using an Efficient Neighborhood-based Segmentation
2008
Simulation (San Diego, Calif.)
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The server needs to segment the object into parts and send them individually or sequentially. This paper presents a segmentation based 3D mesh compression scheme that can meet this requirement. ...
We propose an efficient eXtended Multi-Ring neighborhood (XMR) based 3D mesh segmentation algorithm that decomposes the object into meaningful regions. ...
Efficient and Robust XMR Neighborhood based Watershed Segmentation In this section, we propose an efficient and robust XMR neighborhood based watershed segmentation algorithm using Gaussian curvature and ...
doi:10.1177/0037549708093374
fatcat:4ayswms75zdzhk2utaizaycwxm
A New Hybrid Algorithm based on Watershed Method, Confidence Connected Thresholding and Region Merging as Preprocessing for Statistical Classification of General Medical Images
2013
International Journal of Privacy and Health Information Management
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In this work an algorithm is presented for presegmentation of general medical input data, based on a watershed-segmentation strategy utilizing both, original intensities and derived gradient magnitudes ...
Based on such a context-independent pre-segmentation, the resulting manageable number of regions can be further merged and classified, utilizing texture features and a priori statistical models. ...
This research is part of the INVERSIA project (http://inversia.fh-linz.at) which was funded by the European Regional Development Fund (ERDF) in cooperation with the Upper Austrian state government (REGIO13 ...
doi:10.4018/ijphim.2013070104
fatcat:rgro2rq5lrdj5jnu6omdknm26m
Robust region segmentation based on a pseudo-distance map
2004
Journal of Electronic Imaging (JEI)
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We present a robust region segmentation method based on a pseudo-distance map (PDM) that uses a watershed algorithm as a segmentation tool. ...
We also propose a simple and efficient region-merging criterion that considers both boundary strengths and inner intensities of regions to be merged. ...
Through several experiments we showed that the proposed region-merging criterion, along with the PDM-based method, yielded final segmentation results superior to conventional methods. ...
doi:10.1117/1.1758952
fatcat:fh3tifzcqvf77iddc564vmijmy
Hybrid segmentation of depth images using a watershed and region merging based method for tree species recognition
2013
IVMSP 2013
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Our method transforms the 3D point cloud of a 30 cm segment of the tree trunk into a depth image on which a hybrid segmentation method using watershed and region merging techniques is applied in order ...
In this paper, we propose a new method for individual tree species recognition based on the analysis of the 3D geometric texture of tree barks. ...
to produce a primary segm input depth images, while the second weakness boundary based region-mergin obtain the final segmented map [6] . ...
doi:10.1109/ivmspw.2013.6611901
dblp:conf/ivmsp/OthmaniPV13
fatcat:26kqzrj4rbh3znqb7tmz3qt7fm
Extraction and parametrization of grain boundary networks in glacier ice, using a dedicated method of automatic image analysis
2013
Journal of Microscopy
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The initial segmentation step of the software is to separate possible boundaries of grains and air inclusions from background. ...
High resolution is achieved, so that small grain sizes and local curvatures of grain boundaries can systematically be investigated. ...
Features based on the grey value do not allow to segment grain boundaries reliably and to keep the ratio of artificial segmentation boundaries low. ...
doi:10.1111/jmi.12029
pmid:23573838
fatcat:jzg7ippxsffwbhxange3kip3du
Hierarchical, model-based merging of multiple fragments for improved three-dimensional segmentation of nuclei
2004
Cytometry Part A
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Starting with oversegmented data, it searches efficiently for the optimal merging pattern guided by a quantitative scoring criterion based on object modeling. ...
, even with a modest merging tree depth of 3. ...
Fragments have been merged based on the shape and local curvature characteristics along the watershed lines (33) . ...
doi:10.1002/cyto.a.20099
pmid:15584021
fatcat:525ra2uamrehdfpzbfoa2tlwty
A Morphological Methodology for Three-dimensional Human Face Soft-tissue Landmarks Extraction: A Preliminary Study
2010
Aesthetic Plastic Surgery
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At present their detection and location is made by expert physicians with palpation operations. ...
In order to reach this aim it is necessary to implement a methodology, based on landmarks geometrical codification, that mathematically formalizes the physician visual and palpation analysis on the real ...
(a) Watershed depth, (b) merging adjacent regions with shallow depths.
Table 1. Topographic classes. ...
doi:10.1007/s00266-010-9579-6
pmid:20848098
fatcat:2xvzdd6tgja4loiyv7kirwxrri
Integrated profiling of three dimensional cell culture models and 3D microscopy
2013
Computer applications in the biosciences : CABIOS
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The proposed curvature-based partitioning method is validated with both synthetic and real data, and is shown to have a superior performance against previous techniques. ...
formed by perceptual boundaries from adjacent nuclei. ...
(i) Figure 5 shows a sample of segmentation results and comparison with variants of watershed-based method. ...
doi:10.1093/bioinformatics/btt535
pmid:24045773
pmcid:PMC3834800
fatcat:uxeukidjszezpe4ekfeyq4ymby
A Unified Framework for Automated 3-D Segmentation of Surface-Stained Living Cells and a Comprehensive Segmentation Evaluation
2009
IEEE Transactions on Medical Imaging
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This revealed that combination of the respective cell types with the most suitable microscopy method resulted in high success rates up to 97%. ...
The segmentation results from two different automated approaches for segmentation are compared to manual segmentation of the same data using a rigorous evaluation scheme. ...
The second merging criterion restricts the allowed difference in size of the two merging candidates. ...
doi:10.1109/tmi.2008.2011522
pmid:19131295
fatcat:mrqyxpug4jcn3m7f65ugl7klcq
Automatic segmentation of HeLa cell images
[article]
2011
arXiv
pre-print
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Lot of images with young, adult and mixture cells were able to prove the quality of described algorithms. ...
Proper segmentation is one of the main task of image analysis and steps order differ from work to work, depending on input images. ...
Watershed
Boundary curvature ratio Merging criterion to improve the oversegmentation of watershed algorithm attempting to utilize boundary information to more visually appropriate segmentation. ...
arXiv:1101.2312v1
fatcat:obmg5bwryvbc7mdmf7zimd67ly
Model design for scalable two-dimensional model-based video coding
2002
Electronics Letters
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As the boundary is almost a line in some positions, no point is allocated if we only use curvature as a criterion. This is not the optimal mesh structure based on the results in [7] . ...
Using curvature as a criterion has some advantages. First, the number of points can be easily controlled. Points are allocated on the position with highest curvature first. ...
doi:10.1049/el:20020980
fatcat:l6tduqlf3jfdvabt4jvnfsvldq
Watersnakes: Energy-driven watershed srgmentation
2003
IEEE Transactions on Pattern Analysis and Machine Intelligence
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Watersnakes: energy-driven watershed segmentation Nguyen, T.H.; Worring, M.; van den Boomgaard, R. ...
In [3] , Leclerc suggests a segmentation approach based on the minimum description length criterion. ...
COMPARISON OF WATERSNAKES WITH ENERGY-BASED SEGMENTATION METHODS In this section, we compare watersnakes with other energybased segmentation methods. ...
doi:10.1109/tpami.2003.1182096
fatcat:esjdfdumyrefdipbvlh2wmzkbm
Merging toward natural clusters
2009
Optical Engineering: The Journal of SPIE
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Under a region merging framework, we demonstrate the effectiveness of the stop criterion using two merging criterion: one based on optimizing a global functional, and another based on a local criterion ...
This problem inevitably occurs in region merging/growing, a well studied and popular technique in image segmentation. Region merging usually needs a stop criterion. ...
Question 2 points toward a merging criterion based on stepwise optimizing a global functional and also a modified criterion with local constraints. ...
doi:10.1117/1.3183892
fatcat:53kak6ktdfamfb2iy7s5u5iz4m
Detection of Spots in 2-D Electrophoresis Gels by Symmetry Features
[chapter]
2005
Lecture Notes in Computer Science
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The implementation was compared with a previously published Watershed segmentation and a commercial software. ...
A feed forward neural network is used to find decision boundaries in the feature space. The neural network is trained with features extracted from manually segmented 2-DE images. ...
2-DE image segmentation algorithm based upon Symmetry Derivatives and compared it with the widely used Watershed segmentation technique and a commercial software package. ...
doi:10.1007/11551188_47
fatcat:ftnxylthu5bxvmet27ot4m6sbe
Segmentation and Shape Extraction of 3D Boundary Meshes
[article]
2006
Eurographics State of the Art Reports
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In this report we present the state of the art on segmentation, or partitioning techniques used on boundary meshes. ...
We formulation the segmentation problem as an optimization problem and identify two primarily distinct types of mesh segmentation, namely parts segmentation and patch segmentation. ...
The watershed algorithm, originally used for images segmentation, is in fact a region growing algorithm with multiple sources. ...
doi:10.2312/egst.20061056
fatcat:scp6cwa6cjb4lauvpfebzzjf4y
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