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SpeededUpRobustFeaturesDetector Class |
Speeded-up Robust Features (SURF) detector.
Inheritance HierarchySystemObject
Accord.ImagingSpeededUpRobustFeaturesDetector
Accord.ImagingSpeededUpRobustFeaturesDetector
Namespace: Accord.Imaging
Assembly: Accord.Imaging (in Accord.Imaging.dll) Version: 3.6.0
Syntax[SerializableAttribute] public class SpeededUpRobustFeaturesDetector : ICornersDetector, ICloneable, IFeatureDetector<SpeededUpRobustFeaturePoint>, IFeatureDetector<SpeededUpRobustFeaturePoint, double[]>, IDisposable
The SpeededUpRobustFeaturesDetector type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | SpeededUpRobustFeaturesDetector |
Initializes a new instance of the SpeededUpRobustFeaturesDetector class.
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| SpeededUpRobustFeaturesDetector(Single) |
Initializes a new instance of the SpeededUpRobustFeaturesDetector class.
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| SpeededUpRobustFeaturesDetector(Double, Int32, Int32) |
Initializes a new instance of the SpeededUpRobustFeaturesDetector class.
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Properties| Name | Description | |
|---|---|---|
 | ComputeDescriptors |
Gets or sets a value indicating whether all feature points
should have their descriptors computed after being detected.
Default is to compute standard descriptors.
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| ComputeOrientation |
Gets or sets a value indicating whether all feature points
should have their orientation computed after being detected.
Default is true.
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| Octaves |
Gets or sets the number of octaves to use when building
the response filter.
Each octave corresponds to a series of maps covering a
doubling of scale in the image. Default is 5.
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| Step |
Gets or sets the initial step to use when building
the response filter.
Default is 2.
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| Threshold |
Gets or sets the non-maximum suppression
threshold. Default is 0.0002.
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Methods| Name | Description | |
|---|---|---|
| Clone |
Creates a new object that is a copy of the current instance.
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| Dispose |
Performs application-defined tasks associated with freeing, releasing,
or resetting unmanaged resources.
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 | Dispose(Boolean) |
Releases unmanaged and - optionally - managed resources.
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| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| GetDescriptor |
Gets the
feature descriptor for the last processed image.
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| GetHashCode | Serves as the default hash function. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| ProcessImage(Bitmap) |
Process image looking for interest points.
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| ProcessImage(BitmapData) |
Process image looking for interest points.
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| ProcessImage(UnmanagedImage) |
Process image looking for interest points.
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| ToString | Returns a string that represents the current object. (Inherited from Object.) |
Extension Methods| Name | Description | |
|---|---|---|
 | HasMethod |
Checks whether an object implements a method with the given name.
(Defined by ExtensionMethods.) |
| IsEqual | Compares two objects for equality, performing an elementwise comparison if the elements are vectors or matrices. (Defined by Matrix.) |
| ToT |
Converts an object into another type, irrespective of whether
the conversion can be done at compile time or not. This can be
used to convert generic types to numeric types during runtime.
(Defined by ExtensionMethods.) |
RemarksBased on original implementation in the OpenSURF computer vision library by Christopher Evans (http://www.chrisevansdev.com). Used under the LGPL with permission of the original author.
Be aware that the SURF algorithm is a patented algorithm by Anael Orlinski. If you plan to use it in a commercial application, you may have to acquire a license from the patent holder.
References:
- E. Christopher. Notes on the OpenSURF Library. Available in: http://sites.google.com/site/chrisevansdev/files/opensurf.pdf
- P. D. Kovesi. MATLAB and Octave Functions for Computer Vision and Image Processing. School of Computer Science and Software Engineering, The University of Western Australia. Available in: http://www.csse.uwa.edu.au/~pk/Research/MatlabFns/Spatial/harris.m
See Also