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Halifax County, [North Carolina] (Geodetic Survey)

North Carolina Department of Cultural Resources
Publication Date
  • Halifax County (N.C.)--Maps.
  • Triangulation--North Carolina--Halifax County--Maps.
  • Computer Science
  • Mathematics


View Planning for Range Acquisition of Indoor Environments View Planning for Range Acquisition of Indoor Environments Kok-Lim Low A dissertation submitted to the faculty of the University of North Carolina at Chapel Hill in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Computer Science. Chapel Hill 2006 Approved by Advisor: Anselmo Lastra Reader: Dinesh Manocha Reader: Greg Welch Guido Gerig Marc Pollefeys ii © 2006 Kok-Lim Low ALL RIGHTS RESERVED iii ABSTRACT KOK-LIM LOW: View Planning for Range Acquisition of Indoor Environments (Under the direction of Anselmo Lastra) This dissertation presents a new and efficient next-best-view algorithm for 3D reconstruction of indoor environments using active range sensing. A major challenge in range acquisition for 3D reconstruction is an efficient automated view planning algorithm to determine a sequence of scanning locations or views such that a set of acquisition constraints and requirements is satisfied and the object or environment of interest can be satisfactorily reconstructed. Due to the intractability of the view planning problem and the lack of global geometric information, a greedy approach is adopted to approximate the solution. A practical view metric is formulated to include many real-world acquisition constraints and reconstruction quality requirements. This view metric is flexible to allow trade-offs between different requirements of the reconstruction quality. A major contribution of this work is the application of a hierarchical approach to greatly accelerate the evaluation of the view metric for a large set of views. This is achieved by exploiting the various spatial coherences in the acquisition constraints and reconstruction quality requirements when evaluatin

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