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Title: Systems and methods that generate height map models for efficient three dimensional reconstruction from depth information

Methods of generating a three dimensional representation of an object in a reference plane from a depth map including distances from a reference point to pixels in an image of the object taken from a reference point. Weights are assigned to respective voxels in a three dimensional grid along rays extending from the reference point through the pixels in the image based on the distances in the depth map from the reference point to the respective pixels, and a height map including an array of height values in the reference plane is formed based on the assigned weights. An n-layer height map may be constructed by generating a probabilistic occupancy grid for the voxels and forming an n-dimensional height map comprising an array of layer height values in the reference plane based on the probabilistic occupancy grid.
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Issue Date:
OSTI Identifier:
The University of North Carolina at Chapel Hill NNSASC
Patent Number(s):
Application Number:
Contract Number:
Resource Relation:
Patent File Date: 2011 Dec 08
Research Org:
The University of North Carolina at Chapel Hill, Chapel Hill, NC (United States); Eidgenossische Technische Hochschule Zurich, Zurich, CH (Switzerland)
Sponsoring Org:
Country of Publication:
United States

Works referenced in this record:

A Comparison and Evaluation of Multi-View Stereo Reconstruction Algorithms
conference, January 2006