Noise Reduction Using Stochastic Resonance

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Noise Reduction Using Stochastic Resonance

• Larry Zeng

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Method

• Reducing noise in an image by adding right
  amount of noise to the image
• Your enemy can be your friend

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Examples
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Algorithm

• Binary image
• threshold noisy_image noise

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Why?

• Naïve (wont work)
• noisy_image image n
• processed _image noisy_image - n
• Non-linearity

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My Theory
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My Computer Simulations
2.4
10.4
True
Noisy
Improved
1.4
3.5
Average of 600 images
8
My Computer Simulations
2.4
10.4
True
Noisy
Improved
1.4
3.5
Average of 600 images
9
My Computer Simulations
2.4
10.4
THE END
True
Noisy
Improved
1.4
3.5
Average of 600 images