MV Motion Detection DirectShow Filter
The MontiVision Motion Detection filter detects motion
within one or more predefined regions of the input video
stream. The sensitivity of the motion detection algorithm is
Supported COM Events
The filter supports following events through the IMVFilterEvents interface.
Look at the filter events page
for more information.
|A filter starts processing a video frame or sample.
|A filter finishes processing a video frame or sample.
|The filter recognized motion within the video.
|The filter recognized that the motion within the video
|The filter set the boolean record I/O output pin to TRUE.
|The filter set the boolean record I/O output pin to FALSE.
Supported I/O Pins
||Set to TRUE while motion is detected and FALSE
||Set to TRUE while motion is detected and stays
TRUE until the number of defined post roll frames are processed.
This pin is perfectly used to control the MV Recording filter.
I/O Pins are dominant, that means that they have a higher
priority than the corresponding method of the filters
MV Motion Detection Property Pages
Uses the IMVMotionDetection
||Enables or disables motion detection.
|Visualize areas showing motion
||Specifies whether areas wherein motion is detected are
||The colour that is used to highlight motion areas.
|Minimum pixel luminance
||Motion is signaled for a single pixel if the luminance
change of the pixel between the last and the current video
frame is higher than this value.
|Minimum number of changed pixels in
||Motion is signaled for a specified region if the number of
pixels that are signaled is higher than this value.
|Number of post roll frames
||After the state of a region returned to nonsignaled, a defined
number of post roll frames will additionally be send.
|Number of used
||Number of different regions that are set up for motion
|Currently selected region
||Currently selected region. This region can be modified using
the controls within the Origin and Dimension group boxes.
|Origin and Dimension
||Used to adjust the size and the origin of the currently
||Specifies whether the rectangles of the motion detection
regions are drawn onto the video stream.