Image Stitching on a Camera Cell Phone

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Image Stitching on a Camera Cell Phone

• T. Brow, S. Elayaperumal, A. Rajgarhia
• CS223B
• Winter 2008

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Problem

• CPU Size / Memory Budget
• CV Libraries not Available

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Viewfinder Alignment

• To Estimate Homography
• For Faster Similarity Metric

Images from Viewfinder Alignment by A. Adams,
N. Gelfand K. Pulli (Eurographics 2008)
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VIDEO
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Better Stitching in Less Steps

• Corner Detector
• Estimate Area of Corresponding Corners
• Run NCC in Nearby Corners
• Find Homography

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Finding Correspondences
Nearby Search Size 20 pixels NCC Threshold
0.80
Nearby Search Size 10 pixels NCC Threshold
0.95
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Work Allocation

• Tom Brow
• Automatic Stitching on N95
• Santhi Elayaperumal
• Using Viewfinder Alignment as a Similarity Metric
• Aditya Rajgarhia
• Implementing MORF and SURF, Fast Feature Finding
  Methods

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