Clients that are using a Cognex checkerboard calibration plate can use the Cog3DCheckerboardFeatureExtractor class to perform calibration feature extraction. These clients do not need to be concerned with this base class.
Clients that are not using a Cognex checkerboard calibration plate must implement their own calibration feature extractor class capable of extracting calibration features from images of the special calibration object. One way to implement such a custom calibration feature extractor class, is to derive the custom calibration feature extraction class from this base class. The derived calibration feature extraction class can then be passed into the Cog3DCameraCalibrator.Execute() overloads that require an ICog3DCalibrationFeatureExtractor.
This abstract base class provides an implementation of the ICog3DCalibrationFeatureExtractor.Execute(List< List< ICogImage > >) method. This implementation calls derived class' ICog3DCalibrationFeatureExtractor.Execute( ICogImage ) and will make the calls on multiple threads if the derived class' ICog3DCalibrationFeatureExtractor.IsThreadSave property is true. The provided implementation supports feature extraction progress events as well - the FeaturesExtracted event is fired as soon as feature extraction is completed on each calibration image.
Derived classes must: implement an override of the ICog3DCalibrationFeatureExtractor.Execute( ICogImage ) method as well as implement the IsThreadSafe property which specifies whether the override of Execute() is thread-safe or not.
System MarshalByRefObject
Cognex.VisionPro.Implementation CogObjectBase
Cognex.VisionPro.Implementation CogSerializableObjectBase
Cognex.VisionPro3D Cog3DCalibrationFeatureExtractorBase
Cognex.VisionPro3D Cog3DCheckerboardFeatureExtractor
Namespace: Cognex.VisionPro3D
Assembly: Cognex.VisionPro3D (in Cognex.VisionPro3D.dll) Version: 73.0.0.0
The Cog3DCalibrationFeatureExtractorBase type exposes the following members.
| Name | Description | |
|---|---|---|
 | Cog3DCalibrationFeatureExtractorBase |
Default constructor.
|
| Cog3DCalibrationFeatureExtractorBase(SerializationInfo, StreamingContext) |
| Name | Description | |
|---|---|---|
 | CreateObjRef | Creates an object that contains all the relevant information required to generate a proxy used to communicate with a remote object. (Inherited from MarshalByRefObject.) |
| Equals | (Inherited from Object.) |
| Execute(ICogImage) |
Extract features from a calibration image.
|
| Execute(List List ICogImage ) |
Extract features from a set of calibration images, acquired
from one or multiple cameras over different calibration plate poses.
The images are organized in a List, indexed by calibration plate pose.
Each item in the list is a List of images, indexed by camera.
It is expected that the fiducial defining the calibration plate's
origin is within the field of view.
The feature extraction is done by calling the Execute( ICogImage )
method for each calibration image.
The Execute( ICogImage ) method will be invoked on multiple threads
if the IsThreadSafe property is true.
The FeaturesExtracted event is fired after the featues are extracted from each image.
|
| Finalize | Allows an Object to attempt to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
| GetAttributes |
Implements the corresponding member of the ICustomTypeDescriptor interface.
May be overridden in derived classes to provide custom type information.
(Inherited from CogObjectBase.) |
| GetClassName |
Implements the corresponding member of the ICustomTypeDescriptor interface.
May be overridden in derived classes to provide custom type information.
(Inherited from CogObjectBase.) |
| GetComponentName |
Implements the corresponding member of the ICustomTypeDescriptor interface.
May be overridden in derived classes to provide custom type information.
(Inherited from CogObjectBase.) |
| GetConverter |
Implements the corresponding member of the ICustomTypeDescriptor interface.
May be overridden in derived classes to provide custom type information.
(Inherited from CogObjectBase.) |
| GetDefaultEvent |
Implements the corresponding member of the ICustomTypeDescriptor interface.
May be overridden in derived classes to provide custom type information.
(Inherited from CogObjectBase.) |
| GetDefaultProperty |
Implements the corresponding member of the ICustomTypeDescriptor interface.
May be overridden in derived classes to provide custom type information.
(Inherited from CogObjectBase.) |
| GetEditor |
Implements the corresponding member of the ICustomTypeDescriptor interface.
May be overridden in derived classes to provide custom type information.
(Inherited from CogObjectBase.) |
| GetEvents |
Implements the corresponding member of the ICustomTypeDescriptor interface.
May be overridden in derived classes to provide custom type information.
(Inherited from CogObjectBase.) |
| GetEvents( Attribute ) |
Implements the corresponding member of the ICustomTypeDescriptor interface.
May be overridden in derived classes to provide custom type information.
(Inherited from CogObjectBase.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetLifetimeService | Retrieves the current lifetime service object that controls the lifetime policy for this instance. (Inherited from MarshalByRefObject.) |
| GetObjectData |
Implements the GetObjectData method of the ISerializable interface.
(Inherited from CogSerializableObjectBase.) |
| GetProperties |
Implements the corresponding member of the ICustomTypeDescriptor interface.
May be overridden in derived classes to provide custom type information.
(Inherited from CogObjectBase.) |
| GetProperties( Attribute ) |
Implements the corresponding member of the ICustomTypeDescriptor interface.
May be overridden in derived classes to provide custom type information.
(Inherited from CogObjectBase.) |
| GetPropertyOwner |
Implements the corresponding member of the ICustomTypeDescriptor interface.
May be overridden in derived classes to provide custom type information.
(Inherited from CogObjectBase.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| InitializeLifetimeService | Obtains a lifetime service object to control the lifetime policy for this instance. (Inherited from MarshalByRefObject.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| MemberwiseClone(Boolean) | Creates a shallow copy of the current MarshalByRefObject object. (Inherited from MarshalByRefObject.) |
| OnFeaturesExtracted |
Method to support feature extraction progress event.
|
| ToString | (Inherited from Object.) |
| Name | Description | |
|---|---|---|
 | IsThreadSafe |
Gets whether the implementation of the Execute(ICogImage) method is thread-safe.
thread-safety is required to allow multithreading within implementations
of the
Execute(List< List< ICogImage > >) method.
|
| Name | Description | |
|---|---|---|
 | FeaturesExtracted |
Feature extraction progress event.
|