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Description: Description: Recent studies on Mathematical modeling of visual cortical cells [Kulikowski/Marcelja/Bishop:1982] suggest a tuned band pass filter bank structure. These filters are found to have Gaussian transfer functions in the frequency domain. Thus, taking the Inverse Fourier Transform of this transfer function we get a filter characteristics closely resembling to the Gabor filters. The Gabor filter is basically a Gaussian (with variances sx and sy along x and y-axes respectively) modulated by a complex sinusoid (with centre frequencies U and V along x and y-axes respectively).
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Size: 2387 |
Author: gz |
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Description: scalogram.m Function to calculate the phase and amplitude scalograms of a 1D signal. The analysis is done using quadrature pairs of log Gabor wavelets.
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Size: 3072 |
Author: wang gang |
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Description: gaborconvolve - function for convolving each row of an image with 1D log-Gabor filters
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％ Usage:
％ [template, mask] = createiristemplate(eyeimage_filename)
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％ Arguments:
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Size: 1532 |
Author: wpf |
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Description: Description: Recent studies on Mathematical modeling of visual cortical cells [Kulikowski/Marcelja/Bishop:1982] suggest a tuned band pass filter bank structure. These filters are found to have Gaussian transfer functions in the frequency domain. Thus, taking the Inverse Fourier Transform of this transfer function we get a filter characteristics closely resembling to the Gabor filters. The Gabor filter is basically a Gaussian (with variances sx and sy along x and y-axes respectively) modulated by a complex sinusoid (with centre frequencies U and V along x and y-axes respectively).
Platform: |
Size: 2048 |
Author: gz |
Hits:
Description: scalogram.m Function to calculate the phase and amplitude scalograms of a 1D signal. The analysis is done using quadrature pairs of log Gabor wavelets.
Platform: |
Size: 3072 |
Author: wang gang |
Hits:
Description: gaborconvolve - function for convolving each row of an image with 1D log-Gabor filters
％
％ Usage:
％ [template, mask] = createiristemplate(eyeimage_filename)
％
％ Arguments:-gaborconvolve- function for convolving each row of an image with 1D log-Gabor filters Usage: [template, mask] = createiristemplate (eyeimage_filename) Arguments:
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Size: 1024 |
Author: wpf |
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Description: Functions for 1D and 2D Gabor Filtering with
the parameters as Centre Frequencies (u,v) and
the Scale (sigmax,sigmay) of the Gabor Filter
- Functions for 1D and 2D Gabor Filtering with
the parameters as Centre Frequencies (u,v) and
the Scale (sigmax,sigmay) of the Gabor Filter
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Size: 7168 |
Author: Ts0 |
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Description: It is 1D gabor filter code in matlab
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Size: 1024 |
Author: Abdin
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