Tutorial on Gabor Filters
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منابع مشابه
3D Gabor Based Hyperspectral Anomaly Detection
Hyperspectral anomaly detection is one of the main challenging topics in both military and civilian fields. The spectral information contained in a hyperspectral cube provides a high ability for anomaly detection. In addition, the costly spatial information of adjacent pixels such as texture can also improve the discrimination between anomalous targets and background. Most studies miss the wort...
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Introduction: The process of discriminating among benign and malignant hyperplasia begun with subjective methods using light microscopy and is now being continued with computerized morphometrical analysis requiring some features. One of the main features called Volume Percentage of Stroma (VPS) is obtained by calculating the percentage of stroma texture. Currently, this feature is calculated ...
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Gabor representations have been widely used in facial analysis (face recognition, face detection and facial expression detection) due to their biological relevance and computational properties. Two popular Gabor representations used in literature are: 1) Log-Gabor and 2) Gabor energy filters. Even though these representations are somewhat similar, they also have distinct differences as the Log-...
متن کاملMulti-Fold Gabor, PCA and ICA Filter Convolution Descriptor for Face Recognition
—This paper devises a new means of filter diversification, dubbed multi-fold filter convolution (í µí³-FFC), for face recognition. On the assumption that í µí³-FFC receives single-scale Gabor filters of varying orientations as input, these filters are self-cross convolved by í µí³-fold to instantiate an offspring set. The í µí³-FFC flexibility also permits the self-cross convolution amongst...
متن کاملDigital Gabor Filters with Mra Structure*
Digital Gabor filters are indispensable tools of local time-frequency analysis in signal processing. With strong orientation selectivity, discrete (tight) Gabor frames generated by 2D Gabor filters also see their wide applications in image processing and volume data processing. However, owing to the lack of multi-scale structures, discrete Gabor frames are less effective than multiresolution an...
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