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1 edition of Surface construction from planar contours found in the catalog.

Surface construction from planar contours

Patrick G. Hogan

Surface construction from planar contours

by Patrick G. Hogan

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  • 7 Currently reading

Published by Naval Postgraduate School in Monterey, California .
Written in

    Subjects:
  • Mode of access: World Wide Web

  • About the Edition

    Many scientific and technical endeavors require the reconstruction of a three-dimensional solid from a collection of two-dimensional contours. One method for this reconstruction involves a procedure whereby individual pairs of contours are mapped together to form triangular surface patches. In this paper, we present an algorithm which not only handles mapping situations of simple, closed contours but also mappings of multiple contours per plane and partial contour mappings. Also included is a discussion of the algorithm"s limitations and heuristics.

    Edition Notes

    StatementPatrick G. Hogan, Michael J. Zyda
    ContributionsZyda, Michael J., Naval Postgraduate School (U.S.)
    The Physical Object
    Pagination1 v. (various pagings) :
    ID Numbers
    Open LibraryOL25495170M
    OCLC/WorldCa460973541

    Terrain Reconstruction from Contours by Skeleton Construction Article (PDF Available) in GeoInformatica 4(4) December with Reads How we measure 'reads'. Bajaj, E. Coyle and K. Lin, Graphical Models and Image Processing 58 (6) () –), we provided a solution to the construction of a surface triangular mesh from planar -section contours. Here we provide an approach to tetrahedralize the solid region bounded by planar contours and the surface by:

    One of them (Optimal surface reconstruction from planar contours) is based on the dynamic programming technique and uses a cost function for determining which triangulation is . construction of a surface triangular mesh from planar -section contours. Here we provide an approach to tetrahedralize the solid region bounded by planar contours and the surface mesh. It is a difficult task because the solid can be of high genus (several through holes) as well as have complicated branching regions.

    Download Citation | Bio-CAD Reverse Engineering of Free-form Surfaces by Planar Contours | In this paper, an interactive application tool has been developed for creating 3D models of anatomical. We introduce a tool to build a surface mesh able to deal with sparse, heterogeneous, non-parallel, cross-sectional, non-coincidental contours and show its application to reconstruct surfaces of the heart. In recent years, much research has looked at creating personalised 3D anatomical models of the heart. These models usually incorporate a geometrical reconstruction of the anatomy in order to Cited by: 3.


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Surface construction from planar contours by Patrick G. Hogan Download PDF EPUB FB2

Surface construction from planar contours. Item Preview remove-circle Share or Embed This Item. some content may be lost due to the binding of the book. Addeddate Call number ocm Camera Canon EOS 5D Mark II line Computer Science rPages: One method for this reconstruction involves a procedure whereby individual pairs of contours are mapped together to form triangular surface patches.

In this paper, we present an algorithm which not only handles mapping situations of simple, closed contours Surface construction from planar contours book also mappings of multiple contours per plane and partial contour mappings.

relativeconnectionpointsinthecontourmappingprocessforhighlyconvolutedcontours. As the Fuchs algorithmcan, this algorithm can handlemappings ofsimple,closedcontours.

It also has capabilities for mapping togethersimplebranches. Surface Construction from Planar Contours by Patrick Gerard Hogan Lieutenant Commander, United States Navy B. S., Jacksonville University, Submitted in partial fulfillment of the requirements for the degree of MPSTER OF SCIENCE IN COMPUTER SCIENCE from the NPVAL POSTGRPDUPTE SCHOOL December ABSTRACT Many scientific and technical endeavors require the reconstruction of a three-dimensional solid from a collection of two-dimensional contours.

Surface construction from planar contours Once the concatenation process is completed. Shantz uses Fuchs' closed contour mechanism to formulate the connections between the composite contours. After the connections have been formed, any extraneous connections resulting from the concatenation process are removed.

A partial set of planar contours from a 3D Z2-orbital of a hydrogen molecule. Surface construction from planar contours Fig. Two-dimensional bounding box used for determining overlap percentage value. used to give priority to contour mappings that have the highest percentage of total overlap by: PDF | On Aug 1,Henry Fuchs and others published Optimal Surface Reconstruction from Planar Contours.

| Find, read and cite all the research you need on ResearchGate. A new fast algorithm for finding such cycles is utilized. Also developed is a closed-form expression, in terms of the number of contour points, for an upper bound on the number of operations required to execute the algorithm.

An illustrated example which involves the construction of a minimum area surface describing a human head is by: Next, we use Voronoi diagrams and operations on a planar map to create a partition, which guarantees a correct reconstruction.

Finally, a surface-interpolation algorithm is applied to the contours translated according to both their correspondence and the created partition to produce the actual surface. contour interpolation algorithm was implemented in SlicerRT for reconstructing surfaces from planar contours.

The implemented algorithm was able to generate qualitatively good 3D mesh from the set of 2D contours for most tested structures. Keywords: surface reconstruction, contour interpolation, triangulation, radiation therapy 1. INTRODUCTION. Abstract. This paper researches the method of constructing 3D surface from planar contours.

We base our work on distance field function method and mainly concentrate on how to simply and uniformly solve the problems of isosurface generation caused by non-manifold surface.

Our work includes three main steps: grid adjustment analysis, Author: Xiaohui Liang, Xiaoxiao Wu, Aimin Liang, Chuanpeng Wang. The problem of surface construction from two-dimensional parallel planes is characterized by mapping and triangulating pairs of planar contours into surface patches that form a display.

The surface construction algorithm identifies the appropiate contours, including the specific portions of those contours, that should be mapped. The problem addressed here is the determination of three-dimensional surfaces given the planar contours of cross-sections of the surface. The authors first describe past work on the four main aspects of this problem, namely, correspondence, tiling, branching, and surface fitting.

The new work focuses on the correspondence and branching : MeyersDavid, SkinnerShelley, SloanKenneth. Book, volume I & II. NASA Reference Publication [30] Anonymous. Nasa man-systems integration manual.

Technical Report NASA-STD [31] Surface construction from planar contours. Graphics, {},Warm-up Smooth Piecewise Smooth “Simple”. Fuchs, H., etal., "Optimal Surface Reconstruction from Planar Contours," COMMUNICATIONS OF THE ACM, XX (October ), Google Scholar Digital Library; 4.

Keppel, E., "Approximating Complex Surfaces by Triangulation of Contour Lines," IBM JOURNAL OF RESEARCH AND DEVELOPMENT, XIX (January ), Google Scholar Digital Library; by: In this paper we consider the problem of reconstructing triangular surfaces from given contours. An algorithm solving this problem must decide which contours of two successive slices should be connected by the surface (branching problem) and, given that, which vertices of the assigned contours should be connected for the triangular mesh (correspondence problem).Cited by: tomatically reconstructing surfaces from planar contours.

Our al-gorithm is based on scanline rendering and separating surface ex-traction. By rendering the contours as distinctly colored polygons and reading back each rendered slice into a segmented volume, we reduce the complex problem of building a surface from planar con.

Construction of the tetrahedral mesh of a solid bounded by planar contours and the surface mesh is difficult because the solid can be of high genus (several through holes) and have branching regions. Surface reconstruction from contours is an important problem especially in medical applications.

Other uses include reconstruction from topographic data, or isosurface generation in general. The drawback of existing reconstruction algorithms from contours is, that they are relatively complicated and often have numerical by: 5.

This paper presents a new triangulation method to define surfaces of 3D object from parallel 2D contours. These contours represent the boundary of a human organ segmented from 2D images acquired from radiological volumetric data using ultrasound (US), computer topography (CT) Cited by: 1.

create a surface between the contours P and Q. The surface is constructed of triangular tiles between these two contours. The vertices of these tiles are contour points, with the vertices of each tile taken two from one sequence and one from the other.

Thus each tile is.A novel contour generation algorithm is developed to convert dexel data into a series of planar contours on parallel slices. The algorithm categorizes the dexels on two adjacent rays into different groups by using a “grouping” criterion.

The dexel points in the same group are connected using a set of rules to form by: An open source contour interpolation algorithm was implemented in SlicerRT for reconstructing surfaces from planar contours.

The implemented algorithm was able to generate qualitatively good 3D mesh from the set of 2D contours for most tested by: 4.