3D digital model reconstruction of insects from a single pair of stereoscopic images
Lau, JohnMark
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https://hdl.handle.net/2142/46786
Description
Title
3D digital model reconstruction of insects from a single pair of stereoscopic images
Author(s)
Lau, JohnMark
Issue Date
2014-01-16T18:02:29Z
Director of Research (if dissertation) or Advisor (if thesis)
Hart, John C.
Department of Study
Computer Science
Discipline
Computer Science
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Computer Graphics
Computer Vision
Digitization and Image Capture
Three-Dimensional Graphics and Realism
Stereo Vision
Abstract
This thesis proposes a robust method of creating a 3D digital model of an object through stereoscopic reconstruction. There are existing methods and tools for achieving this, but they tend to only perform well under favorable conditions, such as specializing to a specific class of objects or requiring certain geometric and textural characteristics. Hence, when the object in question has a relatively monochrome color, minute distinctive features, curved or unusual shapes, or specular surfaces, the results are often warped and do not resemble the original object. A prime example of this loss of digital fidelity can be found in the insect kingdom. Insects come in an enormous variety of shapes and sizes, providing a sizeable database that can rigorously test the algorithm. Our method takes a pair of stereo images and a set of calibration images, finds dense correspondences between the two images, and outputs a colored 3D point cloud. The results are a remarkable improvement over existing tools that attempt to create models for a generic object. The generated models capture features from the original insects and show significant detail given the challenge of the generalized problem.
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