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Computer Vision

• Finding the Underground
• A Seeing Machine
  • Digitized Images
  • Internal Representation
• Method 1: Template Matching
  • Dealing with Differences in Viewing Angle and Size
  • Dealing with Variations Due to Lighting
• Method 2: Matching Descriptions
  • Regions and Edges
  • Matching
• Describing Shape and Position
• Conclusion
• Appendix: Recognizing an Underground Sign
  • A POP-11 Procedure to Find Regions
• Exercises