 | MontiVision Development Kit |
 | Product Release Notes |
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| What's new? |
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| Installation |
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| Overview |
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| Components |
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| The MontiVision Workbench |
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| How to use the Workbench |
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| How to insert an Filter |
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| How to make a connction between two filter |
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| How to change filter properties |
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| How to get mediatypes of a pin or connection |
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| How to delete a connection |
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| How to delete a filter |
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| How to find a filter |
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| How to select a filter, pin or connection |
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| How to make a video visible |
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| How to preview a video stream |
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| Workbench Menus and Commands |
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| File menu commands |
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| Edit menu commands |
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| View menu commands |
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| Graph menu commands |
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| Extras menu commands |
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| Help menu commands |
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| Context menu commands |
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| Status Bar |
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| Toolbar |
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| Sorting Filters |
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| MontiVision DirectShow Filter |
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| Common filter functions |
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| MV Absolute Difference |
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| MV Advanced Optical Flow |
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| MV Affine Transformation |
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| MV Alignment |
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| MV Audio Test Source |
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| MV Batch Image File Source |
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| MV Background Subtraction |
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| MV Bayer To Gray |
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| MV Bayer To RGB |
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| MV Bitmap Overlay |
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| MV Blob Counter |
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| MV Blob Finder |
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| MV BlockRecording |
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| MV Buffer Access |
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| MV Camera Calibration |
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| MV Camera Syncronisation |
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| MV Camera Undistortion |
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| MV Color Filter |
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| MV Color Channel Mixer |
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| MV Color Space Converter |
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| MV Color To Gray |
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| MV Color Twist |
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| MV Constant Framerate |
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| MV Convolution |
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| MV Cooccurrence |
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| MV Crop |
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| MV Deinterlace |
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| MV DeInterlace Temporal |
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| MV Delay |
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| MV Demo Source |
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| MV Demultiplexer |
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| MV DPS Renderer |
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| MV DPS Source |
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| MV Dyadic Arithmetic |
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| MV Dyadic Logic |
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| MV Fast Color Filter |
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| MV Frame Access |
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| MV Gauge |
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| MV GDI Overlay |
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| MV Gray To Color |
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| MV Image File Source |
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| MV Image Grabber |
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| MV Image File Renderer |
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| MV Integral |
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| MV Inverse |
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| MV I/O Bool Source |
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| MV I/O Comparator |
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| MV I/O Logic |
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| MV I/O Not |
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| MV I/O Renderer |
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| MV I/O RS232 |
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| MV I/O RS232 Trigger Source |
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| MV I/O Switch Source |
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| MV I/O Textfile Renderer |
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| MV I/O Textfile Source |
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| MV I/O To String |
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| MV IP Camera Source |
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| MV Look Up Table |
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| MV Mean |
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| MV Mean Profile |
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| MV Merge Frames |
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| MV Mirror |
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| MV MJPEG Compressor |
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| MV MJPEG Decompressor |
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| MV Mondic Arithmetic |
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| MV Mondic Logic |
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| MV Morphology |
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| MV Motion Detection |
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| MV Motion Direction |
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| MV Multi File Writer |
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| MV Network Renderer |
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| MV Network Source |
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| MV Nonlinear Filter |
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| MV Object Tracker |
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| MV Optical Flow |
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| MV Playlist Source |
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| MV Polar |
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| MV Presence Detection |
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| MV Profile |
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| MV Recording |
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| MV ReInterlace |
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| MV Resize |
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| MV Resized Rotation |
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| MV Rotate90 |
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| MV Rotation |
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| MV Segmentation |
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| MV Select Mediatype |
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| MV Separate Fields |
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| MV Smooth Sequence |
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| MV Splitter |
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| MV Text Overlay |
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| MV Ticker Overlay |
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| MV Topography |
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| MV Trigger Source |
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| MV Video File Overlay |
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| MV Video Overlay |
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| MV Video Scaler |
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| MV Watchdog |
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| MV Zoom |
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| Filter Event Mechanism |
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| MontiVision DirectShow Filter SDK |
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| Create a new Filter SDK DLL |
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| Implement your custom Algorithm |
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| Register the Filter SDK DLL |
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| Use the new DirectShow Filter |
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| Debugging a DirectShow Filter |
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| Configure a Filter SDK DirectShow Filter |
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| MontiVision Smart ActiveX Control |
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| MV Smart Control Functions |
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| MV Smart Control Interfaces |
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| IMVSmartControl |
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| IMVSCFilterGraph |
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| IMVSCFilterGraph2 |
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| IMVSCVideoWindow |
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| IMVSCVideoWindow2 |
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| IMVSCFullScreen |
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| IMVSCSetFile |
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| IMVSCSetSourceFilter |
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| IMVSCSelectInput |
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| IMVSCSetupVideoStream |
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| IMVSCSetupVideoStream2 |
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| IMVSCClock |
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| IMVSCFilterProperties |
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| IMVSCLog |
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| IMVSCCameraControl |
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| IMVSCFilterEvents |
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| IMVSCMediaSeeking |
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| IMVSCMediaSeeking2 |
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| IMVSCQualityProperties |
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| IMVSCFilterData |
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| IMVSCCommonProperties |
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| IMVSCExtDeviceControl |
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| IMVSCVideoControl |
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| IMVSCAnalogVideoFormat |
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| IMVSCTVTuner |
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| IMVSCTVAudio |
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| Application Development with the MV Smart Control |
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| Visual Basic 6.0 |
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| Visual Basic .NET |
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| Visual C++ 6.0 |
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| Visual C++ .NET |
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| Borland Delphi |
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| MV Smart Control Samples |
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| AviPlay Sample |
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| CropVideo Sample |
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| DirFinder Sample |
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| FindObject Sample |
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| FullScreen Sample |
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| ImageStream Sample |
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| IP Camera Sample |
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| LiveDraw Sample |
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| LoadFromString Sample |
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| LumeneraCameraProperties Sample |
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| MotionDetection Sample |
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| PutBitmap Sample |
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| SendReceiveRS232 Sample |
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| MV Smart Control How To's |
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| How to handle Input Events (Mouse, Keyboard) of the Video Window |
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| How to Select and Configure a Video Input Device |
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| How to handle Multiple Video Outputs |
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| How to use Fullscreen Functionality |
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| How to access the Results of a MontiVsion DirectShow Filter |
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| MontiVision Utility ActiveX Controls |
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| Video Source Combo Box |
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| Video Format Combo Box |
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| Video Size Combo Box |
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| Input Selection Combo Box |
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| Frame Rate Combo Box |
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| Seeking Slider |
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| Filter Property Page Display |
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| Trigger Button |
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| MontiVision I/O Controls |
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| MVIODisplay |
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| MVIOMonitor |
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| MVIOLed |
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| MVIOOutput |
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| VMR Wrapper ActiveX Control |
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| MV VMR Wrapper Interfaces |
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| IMVVMRWrapper |
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| IMVVMRFilterConfig |
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| IMVVMRMixerControl |
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| IMVVMRMixerBitmap |
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| MV VMR Wrapper Sample Applications |
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| VMR Control Sample |
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| VMR Bitmap Overlay Sample |
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| Extended Video Source ActiveX Control |
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| MV Extended Video Source Control Interfaces |
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| IMVExtendedVideoSource Interface |
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| IMVLumeneraCustomConfig Interface |
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| _IMVExtendedVideoSourceEvents Interface |
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| MontiVision Tools |
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| Getting Started |
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| Create a MontiVision Project |
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| Create a MontiVision Project using the MontiVision Workbench |
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| Create new DirectShow Filters using the MontiVision Filter SDK |
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| Use the new DirectShow Filter in your MontiVision Project |
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| Integrate the MontiVision Project into your Application |
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| Distribute your Application |
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| Distributing your Applications |
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| Application Development Examples |
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| Apply standard Image Processing Operators to a Video Stream |
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| Process a Sequence of Still Images, Do Batch Processing |
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| Make your Existing Algorithms DirectShow compatible |
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| Creating your own Image/Video Processing DirectShow Filters |
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| Access the Image Data of a Video Stream directly from within a Windows Application |
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| Capture Still Images from a running Video Stream |
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| Convert a Video Stream to a Sequence of Still Images or vice versa |
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| Sample Applications using the Smart Control |
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| Camera Calibration |
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| Additional HowTo's |
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| How to Set Up Visual C++ for the MontiVision Development Kit |
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| How to Set Up Borland Delphi for the MontiVision Development Kit |
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| How to Set Up Borland Delphi 2005 for the MontiVision Development Kit |
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| Interface Reference |
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| _IMVFilterPropertyControlEvents |
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| _IMVSeekingSliderEvents |
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| _IMVSmartControlEvents |
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| _ISelectInputComboBoxEvents |
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| _IVideoFormatComboBoxEvents |
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| _IVideoSizeComboBoxEvents |
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| _IVideoSourceComboBoxEvents |
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| IMVAbout |
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| IMVAdvancedOpticalFlow |
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| IMVAdvancedOpticalFlow2 |
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| IMVAffineTransformation |
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| IMVAlignment |
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| IMVAudioTestSource |
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| IMVAutoCalcSetup |
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| IMVBackgroundSubtraction |
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| IMVBatchFileSource2 |
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| IMVBatchFileSource3 |
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| IMVBatchFileSource |
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| IMVBinary |
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| IMVBitmapOverlay |
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| IMVBitmapOverlay2 |
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| IMVBlobCounter |
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| IMVBlobCounter2 |
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| IMVBlobCounter3 |
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| IMVBlobCounter4 |
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| IMVBlobFinder |
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| IMVBlobFinder2 |
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| IMVBlobFinder3 |
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| IMVBlobPostProcessing |
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| IMVBlobPreProcessing |
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| IMVBlockRecording |
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| IMVBufferAccess |
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| IMVBufferAccessCallbackC |
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| IMVBufferAccessCallbackVB |
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| IMVCameraCalibration |
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| IMVCameraSync |
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| IMVCameraUndistortion |
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| IMVColor |
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| IMVColorChannelMixer |
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| IMVColorTwist |
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| IMVConstantFramerate |
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| IMVConvolution |
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| IMVCooccurrence |
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| IMVCrop |
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| IMVCrypt |
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| IMVDeinterlace |
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| IMVDeInterlaceTemporal |
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| IMVDelay |
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| IMVDemoSource |
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| IMVDemoSource2 |
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| IMVDPSRenderer |
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| IMVDPSSource |
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| IMVDyArith |
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| IMVDyLogic |
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| IMVEnumAudioEncoder |
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| IMVEnumVideoEncoder |
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| IMVFastColor |
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| IMVFilterData |
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| IMVFilterEvents |
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| IMVFilterInfo |
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| IMVFilterPropertyControl |
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| IMVFilterSDK |
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| IMVFrameAccess |
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| IMVFrameAccessCallbackC |
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| IMVFrameAccessCallbackVB |
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| IMVGauge |
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| IMVGaugeCalculations |
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| IMVGDIOverlay |
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| IMVGray |
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| IMVGrayToColor |
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| IMVGrid |
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| IMVHistogram |
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| IMVHistogram2 |
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| IMVHistogram3 |
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| IMVImageCapture |
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| IMVImageCapture2 |
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| IMVImageCapture3 |
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| IMVImageFileSource |
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| IMVImageFileSource2 |
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| IMVImageFileSource3 |
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| IMVImageInfo |
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| IMVIntegral |
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| IMVIOBoolSource |
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| IMVIOBoolSource2 |
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| IMVIOComparator |
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| IMVIOIntRenderer |
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| IMVIOIntSource |
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| IMVIOIntSource2 |
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| IMVIOLogic |
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| IMVIONot |
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| IMVIORenderer |
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| IMVIORS232 |
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| IMVIORS232DataASCII |
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| IMVIORS232DataHex.htm |
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| IMVIORS232RxTxConnection |
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| IMVIORS232TriggerSource |
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| IMVIOSwitchSource |
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| IMVIOTextfileRenderer |
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| IMVIOTextfileSource |
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| IMVIOToString |
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| IMVIPCameraSource |
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| IMVIPCameraSource2 |
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| IMVLinFilter |
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| IMVLookUpTable |
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| IMVMask |
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| IMVMean |
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| IMVMeanProfile |
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| IMVMerger |
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| IMVMirror |
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| IMVMonArith |
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| IMVMonLogic |
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| IMVMorphology |
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| IMVMotionDetection |
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| IMVMotionDetection2 |
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| IMVMotionDirection |
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| IMVMultiFileWriter |
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| IMVNetworkReceiveInfo |
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| IMVNetworkRenderer |
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| IMVNetworkRenderer2 |
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| IMVNetworkRenderer3 |
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| IMVNetworkSendInfo |
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| IMVNetworkSource |
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| IMVNetworkSource2 |
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| IMVNonLinFilter |
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| IMVObjectTracker |
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| IMVOpticalFlow |
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| IMVOpticalFlow2 |
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| IMVPlaylist |
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| IMVPlaylistSource |
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| IMVPolar |
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| IMVPresenceDetection |
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| IMVProfile |
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| IMVRecording |
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| IMVRegionOfInterest |
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| IMVReinterlace |
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| IMVResize |
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| IMVResizedRotation |
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| IMVRotate90 |
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| IMVRotation |
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| IMVSCAnalogVideoFormat |
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| IMVSCCameraControl |
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| IMVSCCommonProperties |
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| IMVSCClock |
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| IMVSCExtDeviceControl |
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| IMVSCFilterData |
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| IMVSCFilterEvents |
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| IMVSCFilterGraph |
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| IMVSCFilterGraph2 |
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| IMVSCFilterProperties |
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| IMVSCFullScreen |
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| IMVSCLog |
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| IMVSCMediaSeeking |
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| IMVSCMediaSeeking2 |
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| IMVSCQualityProperties |
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| IMVSCSelectInput |
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| IMVSCSetFile |
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| IMVSCSetSourceFilter |
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| IMVSCTVTuner |
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| IMVSCTVAudio |
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| IMVSCVideoControl |
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| IMVSCSetupVideoStream |
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| IMVSCSetupVideoStream2 |
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| IMVSCVideoWindow |
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| IMVSCVideoWindow2 |
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| IMVSeekingSlider |
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| IMVSetImageFormat |
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| IMVSmartControl |
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| IMVSeparateFields |
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| IMVSmoothSequence |
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| IMVTextOverlay |
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| IMVTextOverlay2 |
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| IMVTextOverlay3 |
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| IMVTickerOverlay |
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| IMVTickerOverlay2 |
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| IMVTopography |
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| IMVTrigger |
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| IMVTriggerFilter |
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| IMVVideoFileOverlay |
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| IMVVideoScaler |
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| IMVVMRFilterConfig |
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| IMVVMRMixerBitmap |
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| IMVVMRMixerControl |
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| IMVVMRWrapper |
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| IMVWatchdog |
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| IMVZoom |
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| IMVZoomConfig |
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| ISelectInputComboBox |
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| IVideoFormatComboBox |
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| IVideoSizeComboBox |
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| IVideoSourceComboBox |
MV Optical Flow DirectShow Filter
The MontiVision OpticalFlow filter is used to find optical flow withhin a video stream. The filter uses a block matching algorithm to find moved blocks in the current image. The I/O output pin signals if the number of moved block oversteps an adjustable threshold. For example you can control the MV Recording filter to record a video stream only if there is motion within a scene.
This MontiVision DirectShow Filter is used in combination with the MontiVision Smart Control in the DirFinder Sample Application.
| File: | OpticalFlow.ax |
| CLSID: | CLSID_MVOpticalFlow |
Supported Interfaces
Supported COM Events
The filter supports following events through the IMVFilterEvents interface. Look at the filter events page for more information.
| Event |
Value |
Description |
| MV_ALGORITHM_START_EVENT |
0 |
A filter starts processing a video frame or sample. |
| MV_ALGORITHM_END_EVENT |
1 |
A filter finishes processing a video frame or sample. |
Supported I/O Pins
| I/O Pin | Corresponding method | Discription |
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Motion Out [BOOL] |
IMVOpticalFlow::get_MotionDetection | Returns the currently state of the motion detection flag. The flag is TRUE, if the last image contains an adjustable minimum motion to the previous image. |
MV Optical Flow Property Page
Implements the IMVOpticalFlow configuration interface.
| use previous velocity field | Enables the continous storing of the motion vectors. |
| copy image | Copy the input image to the output image. |
| segmentation | Enables the segmentation mode from the filter. The output image contains all moved blocks. |
| draw vectors | Draws the motion vectors into the output image. |
| colour | Select a color for the motion vectors. |
| threshold | Percentage blocks that must have a motion vector to set the I/O output pin to TRUE. |
| post-roll | Image count after the last detected motion for the motion detection output flag is set to "motion detected". |
| Block/Shift Size | The block/shift size sets the size of a block for the matching algorithm and the shift value for motion detection. Both values have the same size and the image size must be perfectly divisible by the block and shift size. |
| Max Range | Spezifies a range around the block. Withhin this range the filter search for the moved block. Kindly note that a greater range decrease the performance. |