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== 노트 == | == 노트 == | ||
− | + | ===말뭉치=== | |
− | + | # The Gabor filter, named after Dennis Gabor, is a linear filter used in myriad of image processing application for edge detection, texture analysis, feature extraction, etc.<ref name="ref_65450400">[https://medium.com/@anuj_shah/through-the-eyes-of-gabor-filter-17d1fdb3ac97 Through The Eyes of Gabor Filter]</ref> | |
− | + | # Gabor filters are special classes of band pass filters, i.e., they allow a certain ‘band’ of frequencies and reject the others.<ref name="ref_65450400" /> | |
− | + | # A Gabor filter can be viewed as a sinusoidal signal of particular frequency and orientation, modulated by a Gaussian wave.<ref name="ref_65450400" /> | |
− | + | # When the input image is convolved with all the Gabor filters the patterns are easily highlighted as shown in figure 3.<ref name="ref_65450400" /> | |
− | + | # The Log-Gabor filter is able to describe a signal in terms of the local frequency responses.<ref name="ref_6f5b056a">[https://en.wikipedia.org/wiki/Log_Gabor_filter Log Gabor filter]</ref> | |
− | + | # Indeed, any application that uses Gabor filters, or other wavelet basis functions may benefit from the Log-Gabor filter.<ref name="ref_6f5b056a" /> | |
− | + | # Features formed from the response of Log-Gabor filters may form a good set of features for some applications because it can locally represent frequency information.<ref name="ref_6f5b056a" /> | |
− | + | # Because of this, the Gabor filter is a good method for simultaneously localizing spatial/temporal and frequency information.<ref name="ref_6f5b056a" /> | |
− | + | # A gabor filter set with a given direction gives a strong response for locations of the target images that have structures in this given direction.<ref name="ref_df3541f7">[https://dsp.stackexchange.com/questions/1603/what-is-the-gabor-filter-and-what-are-its-main-uses What is the Gabor filter? And what are its main uses?]</ref> | |
− | + | # Constructs the Gabor filter with the specified parameters and performs convolution.<ref name="ref_b183ff92">[https://dsp.stackexchange.com/questions/14714/understanding-the-gabor-filter-function Understanding the Gabor filter function]</ref> | |
− | + | # The following images show the original Lenna picture and Gabor filter results for different sampling factors.<ref name="ref_2188084e">[http://homepages.inf.ed.ac.uk/rbf/CVonline/LOCAL_COPIES/TRAPP1/filter.html Active Stereo Vision]</ref> | |
− | + | # Demonstration of a Gabor filter applied to Chinese OCR.<ref name="ref_594c9030">[https://en.wikipedia.org/wiki/Gabor_filter Gabor filter]</ref> | |
− | + | # Gabor filters are directly related to Gabor wavelets, since they can be designed for a number of dilations and rotations.<ref name="ref_594c9030" /> | |
− | + | # Therefore, usually, a filter bank consisting of Gabor filters with various scales and rotations is created.<ref name="ref_594c9030" /> | |
− | + | # Gabor filters have also been widely used in pattern analysis applications.<ref name="ref_594c9030" /> | |
− | + | # This is an example of how to create Gabor filters in Fiji using Beanshell scripting.<ref name="ref_32752cf0">[https://imagej.net/Gabor_Filter_script Gabor Filter script]</ref> | |
− | + | # Demonstration of a Gabor filter applied to the Leaf sample image.<ref name="ref_32752cf0" /> | |
− | + | # This script calculates a set of Gabor filters over the selected image.<ref name="ref_32752cf0" /> | |
− | + | # A raster or matrix to be filtered lamda Wavelength of the cosine part of Gabor filter kernel in pixel.<ref name="ref_b5cb5128">[https://www.rdocumentation.org/packages/wvtool/versions/1.0/topics/gabor.filter gabor.filter function]</ref> | |
− | + | # This is the wavelength of the cosine factor of the Gabor filter kernel and herewith the preferred wavelength of this filter.<ref name="ref_0b513202">[http://matlabserver.cs.rug.nl/edgedetectionweb/web/edgedetection_params.html Gabor filter for image processing and computer vision]</ref> | |
− | + | # The images (of size 100 x 100) on the left show Gabor filter kernels with values of the wavelength parameter of 5, 10 and 15, from left to right, respectively.<ref name="ref_0b513202" /> | |
− | + | # The images (of size 100 x 100) on the left show Gabor filter kernels with values of the orientation parameter of 0, 45 and 90, from left to right, respectively.<ref name="ref_0b513202" /> | |
− | + | # The images (of size 100 x 100) on the left show Gabor filter kernels with values of the phase offset parameter of 0, 180, -90 and 90 dgerees, from left to right, respectively.<ref name="ref_0b513202" /> | |
− | + | # Analyzing a signal by a Gabor filter in terms of convolution or spatial filtering, two pieces of information—phase and magnitude—can be obtained.<ref name="ref_6cf86278">[https://link.springer.com/chapter/10.1007/978-3-642-02611-9_7 An Analysis of Gabor Detection]</ref> | |
− | + | # In the paper, Gabor filter is considered as a Gabor atom detector.<ref name="ref_6cf86278" /> | |
− | + | # In this example, we will see how to classify textures based on Gabor filter banks.<ref name="ref_762cdcac">[https://scikit-image.org/docs/dev/auto_examples/features_detection/plot_gabor.html Gabor filter banks for texture classification — skimage v0.19.0.dev0 docs]</ref> | |
− | + | # The images are filtered using the real parts of various different Gabor filter kernels.<ref name="ref_762cdcac" /> | |
− | + | # Purpose: We propose a method and approach for cup and disc detection based on 2-D Gabor filter with the addition of some constraints.<ref name="ref_ebbac220">[https://www.amhsr.org/articles/applying-a-set-of-gabor-filter-to-2dretinal-fundus-image-to-detect-the-optic-nerve-head-onh-4215.html Applying a Set of Gabor Filter to 2D-Retinal Fundus Image to Det]</ref> | |
− | + | # The 2D-Gabor filters occupy an irreducible volume in a four-dimensional hyper-space of information whose axes can be interpreted as 2D visual space, Orientation and spatial frequency.<ref name="ref_ebbac220" /> | |
− | + | # A novel peripheral processing method is proposed to segment total field strain distributions from interferometric deformation patterns by use of Gabor filters.<ref name="ref_ebbac220" /> | |
− | + | # This novel strategy is specifically proposed for strain measurement with a Gabor filter used as a set of wavelets.<ref name="ref_ebbac220" /> | |
+ | # Gabor filters are a traditional choice for obtaining localised frequency information.<ref name="ref_21292e53">[https://www.peterkovesi.com/matlabfns/PhaseCongruency/Docs/convexpl.html Log-Gabor Filters]</ref> | ||
+ | # This difficulty can be seen if we look at the transfer function of an even-symmetric Gabor filter in the frequency domain.<ref name="ref_21292e53" /> | ||
+ | # Transfer function of a high bandwidth even-symmetric Gabor filter.<ref name="ref_21292e53" /> | ||
+ | # In image processing, a Gabor filter, named after Dennis Gabor, is a linear filter used for edge detection.<ref name="ref_74a2fc27">[http://accord-framework.net/docs/html/T_Accord_Imaging_Filters_GaborFilter.htm GaborFilter Class]</ref> | ||
+ | # In the spatial domain, a 2D Gabor filter is a Gaussian kernel function modulated by a sinusoidal plane wave.<ref name="ref_74a2fc27" /> | ||
+ | # Some of the filters learned during training of the first layer of a CNN resemble the Gabor filter.<ref name="ref_353dbffa">[https://ir.lib.uwo.ca/etd/6155/ "Gabor Filter Initialization And Parameterization Strategies In Convolu" by Long Pham]</ref> | ||
+ | # Gabor filters are extremely good at extracting features within an image.<ref name="ref_353dbffa" /> | ||
+ | # We have taken this as an incentive by replacing the first layer of a CNN with the Gabor filter to increase speed and accuracy for classifying images.<ref name="ref_353dbffa" /> | ||
+ | # We created two simple 5-layer AlexNet-like CNNs comparing grid-search to random-search for initializing the Gabor filter bank.<ref name="ref_353dbffa" /> | ||
===소스=== | ===소스=== | ||
<references /> | <references /> | ||
+ | |||
+ | == 메타데이터 == | ||
+ | |||
+ | ===위키데이터=== | ||
+ | * ID : [https://www.wikidata.org/wiki/Q2447890 Q2447890] | ||
+ | ===Spacy 패턴 목록=== | ||
+ | * [{'LOWER': 'gabor'}, {'LEMMA': 'filter'}] |
2020년 12월 28일 (월) 07:20 기준 최신판
노트
말뭉치
- The Gabor filter, named after Dennis Gabor, is a linear filter used in myriad of image processing application for edge detection, texture analysis, feature extraction, etc.[1]
- Gabor filters are special classes of band pass filters, i.e., they allow a certain ‘band’ of frequencies and reject the others.[1]
- A Gabor filter can be viewed as a sinusoidal signal of particular frequency and orientation, modulated by a Gaussian wave.[1]
- When the input image is convolved with all the Gabor filters the patterns are easily highlighted as shown in figure 3.[1]
- The Log-Gabor filter is able to describe a signal in terms of the local frequency responses.[2]
- Indeed, any application that uses Gabor filters, or other wavelet basis functions may benefit from the Log-Gabor filter.[2]
- Features formed from the response of Log-Gabor filters may form a good set of features for some applications because it can locally represent frequency information.[2]
- Because of this, the Gabor filter is a good method for simultaneously localizing spatial/temporal and frequency information.[2]
- A gabor filter set with a given direction gives a strong response for locations of the target images that have structures in this given direction.[3]
- Constructs the Gabor filter with the specified parameters and performs convolution.[4]
- The following images show the original Lenna picture and Gabor filter results for different sampling factors.[5]
- Demonstration of a Gabor filter applied to Chinese OCR.[6]
- Gabor filters are directly related to Gabor wavelets, since they can be designed for a number of dilations and rotations.[6]
- Therefore, usually, a filter bank consisting of Gabor filters with various scales and rotations is created.[6]
- Gabor filters have also been widely used in pattern analysis applications.[6]
- This is an example of how to create Gabor filters in Fiji using Beanshell scripting.[7]
- Demonstration of a Gabor filter applied to the Leaf sample image.[7]
- This script calculates a set of Gabor filters over the selected image.[7]
- A raster or matrix to be filtered lamda Wavelength of the cosine part of Gabor filter kernel in pixel.[8]
- This is the wavelength of the cosine factor of the Gabor filter kernel and herewith the preferred wavelength of this filter.[9]
- The images (of size 100 x 100) on the left show Gabor filter kernels with values of the wavelength parameter of 5, 10 and 15, from left to right, respectively.[9]
- The images (of size 100 x 100) on the left show Gabor filter kernels with values of the orientation parameter of 0, 45 and 90, from left to right, respectively.[9]
- The images (of size 100 x 100) on the left show Gabor filter kernels with values of the phase offset parameter of 0, 180, -90 and 90 dgerees, from left to right, respectively.[9]
- Analyzing a signal by a Gabor filter in terms of convolution or spatial filtering, two pieces of information—phase and magnitude—can be obtained.[10]
- In the paper, Gabor filter is considered as a Gabor atom detector.[10]
- In this example, we will see how to classify textures based on Gabor filter banks.[11]
- The images are filtered using the real parts of various different Gabor filter kernels.[11]
- Purpose: We propose a method and approach for cup and disc detection based on 2-D Gabor filter with the addition of some constraints.[12]
- The 2D-Gabor filters occupy an irreducible volume in a four-dimensional hyper-space of information whose axes can be interpreted as 2D visual space, Orientation and spatial frequency.[12]
- A novel peripheral processing method is proposed to segment total field strain distributions from interferometric deformation patterns by use of Gabor filters.[12]
- This novel strategy is specifically proposed for strain measurement with a Gabor filter used as a set of wavelets.[12]
- Gabor filters are a traditional choice for obtaining localised frequency information.[13]
- This difficulty can be seen if we look at the transfer function of an even-symmetric Gabor filter in the frequency domain.[13]
- Transfer function of a high bandwidth even-symmetric Gabor filter.[13]
- In image processing, a Gabor filter, named after Dennis Gabor, is a linear filter used for edge detection.[14]
- In the spatial domain, a 2D Gabor filter is a Gaussian kernel function modulated by a sinusoidal plane wave.[14]
- Some of the filters learned during training of the first layer of a CNN resemble the Gabor filter.[15]
- Gabor filters are extremely good at extracting features within an image.[15]
- We have taken this as an incentive by replacing the first layer of a CNN with the Gabor filter to increase speed and accuracy for classifying images.[15]
- We created two simple 5-layer AlexNet-like CNNs comparing grid-search to random-search for initializing the Gabor filter bank.[15]
소스
- ↑ 1.0 1.1 1.2 1.3 Through The Eyes of Gabor Filter
- ↑ 2.0 2.1 2.2 2.3 Log Gabor filter
- ↑ What is the Gabor filter? And what are its main uses?
- ↑ Understanding the Gabor filter function
- ↑ Active Stereo Vision
- ↑ 6.0 6.1 6.2 6.3 Gabor filter
- ↑ 7.0 7.1 7.2 Gabor Filter script
- ↑ gabor.filter function
- ↑ 9.0 9.1 9.2 9.3 Gabor filter for image processing and computer vision
- ↑ 10.0 10.1 An Analysis of Gabor Detection
- ↑ 11.0 11.1 Gabor filter banks for texture classification — skimage v0.19.0.dev0 docs
- ↑ 12.0 12.1 12.2 12.3 Applying a Set of Gabor Filter to 2D-Retinal Fundus Image to Det
- ↑ 13.0 13.1 13.2 Log-Gabor Filters
- ↑ 14.0 14.1 GaborFilter Class
- ↑ 15.0 15.1 15.2 15.3 "Gabor Filter Initialization And Parameterization Strategies In Convolu" by Long Pham
메타데이터
위키데이터
- ID : Q2447890
Spacy 패턴 목록
- [{'LOWER': 'gabor'}, {'LEMMA': 'filter'}]