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gaussian curvature

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• Gives where surface is convex, saddle, or flat • Indicates surface shape at a pixel Gaussian Curvature The average of the principal curvatures If zero, minimal surface

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Gaussian Curvature. Gives where surface is convex, saddle, or flat Indicates surface shape at a pixel. Mean Curvature. The average of the principal curvatures If zero, minimal surface. Noise. Normal and Curvatures. Norm in Z direction. Norm in X direction. Norm in Y direction. - PowerPoint PPT Presentation

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Page 1: Gaussian Curvature

• Gives where surface is convex, saddle, or flat• Indicates surface shape at a pixel

Gaussian Curvature

The average of the principal curvatures If zero, minimal surface

Page 2: Gaussian Curvature
Page 3: Gaussian Curvature

Noise

Page 4: Gaussian Curvature

Norm in Y directionNorm in X direction

Norm in Z direction

Gaussian Curvature

Mean Curvature

Normal and Curvatures

Page 5: Gaussian Curvature

• Use the median to smooth• Save images in lossless format (such as .png)• Changing the range of values from 0 to 255 to

0 to 4000– Allows more detail to be maintain

Fixing Noise

Page 6: Gaussian Curvature

Gaussian Smoothed Median Smoothed

Page 7: Gaussian Curvature

Testing

• Extracted data• Made annotations• Trained and Tested

Page 8: Gaussian Curvature

Problems

• Kinect Studio does not work on my computer• RGB and depth images are not in sync• Everything breaks


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