GridMotionAreaProcessing Class |
Namespace: Accord.Vision.Motion
The GridMotionAreaProcessing type exposes the following members.
Name | Description | |
---|---|---|
GridMotionAreaProcessing |
Initializes a new instance of the GridMotionAreaProcessing class.
| |
GridMotionAreaProcessing(Int32, Int32) |
Initializes a new instance of the GridMotionAreaProcessing class.
| |
GridMotionAreaProcessing(Int32, Int32, Boolean) |
Initializes a new instance of the GridMotionAreaProcessing class.
| |
GridMotionAreaProcessing(Int32, Int32, Boolean, Single) |
Initializes a new instance of the GridMotionAreaProcessing class.
|
Name | Description | |
---|---|---|
GridHeight |
Height of motion grid, [2, 64].
| |
GridWidth |
Width of motion grid, [2, 64].
| |
HighlightColor |
Color used to highlight motion regions.
| |
HighlightMotionGrid |
Highlight motion regions or not.
| |
MotionAmountToHighlight |
Motion amount to highlight cell.
| |
MotionGrid |
Motion levels of each grid's cell.
|
Name | Description | |
---|---|---|
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.) | |
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.) | |
ProcessFrame |
Process video and motion frames doing further post processing after
performed motion detection.
| |
Reset |
Reset internal state of motion processing algorithm.
| |
ToString | Returns a string that represents the current object. (Inherited from Object.) |
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.) | |
To(Type) | Overloaded.
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.) | |
ToT | Overloaded.
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.) |
The aim of this motion processing algorithm is to do grid processing of motion frame. This means that entire motion frame is divided by a grid into certain amount of cells and the motion level is calculated for each cell. The information about each cell's motion level may be retrieved using MotionGrid property.
In addition the algorithm can highlight those cells, which have motion level above the specified threshold (see MotionAmountToHighlight property). To enable this it is required to set HighlightMotionGrid property to .
Sample usage:
// create instance of motion detection algorithm IMotionDetector motionDetector = new ... ; // create instance of motion processing algorithm GridMotionAreaProcessing motionProcessing = new GridMotionAreaProcessing( 16, 16 ); // create motion detector MotionDetector detector = new MotionDetector( motionDetector, motionProcessing ); // continuously feed video frames to motion detector while ( ... ) { // process new video frame detector.ProcessFrame( videoFrame ); // check motion level in 5th row 8th column if ( motionProcessing.MotionGrid[5, 8] > 0.15 ) { // ... } }