Zippered Polygon Meshes From Range Images Greg Turk and Mark Levoy - - PowerPoint PPT Presentation

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zippered polygon meshes from range images
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Zippered Polygon Meshes From Range Images Greg Turk and Mark Levoy - - PowerPoint PPT Presentation

Mar 06, 2023 428 likes •559 views

Zippered Polygon Meshes From Range Images Greg Turk and Mark Levoy Stanford University SIGGRAPH 94 Presented by John Novatnack How Do We Construct 3D Meshes? Range Images Acquiring Range Images Image courtesy of

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Zippered Polygon Meshes From Range Images

Greg Turk and Mark Levoy

Stanford University SIGGRAPH 94 Presented by John Novatnack

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SLIDE 2

How Do We Construct 3D Meshes?

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SLIDE 3

Range Images

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Acquiring Range Images

Image courtesy of http://www.chromecow.com/MadScience/3DScanner/Sketch_2.jpg

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Range Scanner

Image coursey of http://www1.cs.columbia.edu/~atanas/research/scara/setup.jpg

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Paper Approach

  • 1. Registration: Align range images
  • 2. Integration: Zipper adjacent range

images

  • 3. Smoothing: Compute local weight

averages

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Registration: ICP

ICP - iterative closet point 1. User crudely aligns range images 2. Algorithm “snaps” range images together

  • Minimizes weighted least squares metric

Extremely effective!

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Integration: Zippering

  • 1. Remove overlap between meshes
  • 2. Clip the meshes
  • 3. Remove small triangles
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Results

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SLIDE 10

Results

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SLIDE 11

Results

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SLIDE 12

Overview

  • A method of constructing meshes from

range images

  • Keys:

– Incremental – Suspect data ignored