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= 1.0 k = 1.26 LoG approximation (G k - G ) LoG Laplacian of Gaussian approximation

= 1.0 k = 1.26

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Laplacian of Gaussian approximation.  = 1.0 k = 1.26. LoG approximation (G k - G  ) LoG. Laplacian of Gaussian approximation. Image pyramid (10 octaves). subsampling. Original image. -. =. First “octave”: 4 successive blurred image 3 corresponding DoG. - PowerPoint PPT Presentation

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Page 1: = 1.0 k = 1.26

= 1.0k = 1.26

LoG approximation (Gk - G)LoG

Laplacian of Gaussian approximation

Page 2: = 1.0 k = 1.26

Laplacian of Gaussian approximation

Original image

Image pyramid(10 octaves)

First “octave”:-4 successive blurred image-3 corresponding DoG

- =

subsampling

Page 3: = 1.0 k = 1.26

Image pyramid visualisation

Linearly interpolated and absolute value (for visualisation purpose)

Page 4: = 1.0 k = 1.26

Other example

Linearly interpolated and absolute value (for visualisation purpose)

Page 5: = 1.0 k = 1.26

Other example

Linearly interpolated and absolute value (for visualisation purpose)