MediaBlocks Motion Detection
Apr 03 (3 months ago)
Ken
wrote
The MediaBlocks features page says that MotionBlocks supports motion detection. However, the online help for MediaBlocks does not have a topic regarding this. I do see it for the Video Capture SDK, but not MediaBlocks.
Is motion supported? If so, how do I get started?
I don't know if I'm missing something, if the online help is missing something, or if the features page is incorrect.
Is motion supported? If so, how do I get started?
I don't know if I'm missing something, if the online help is missing something, or if the features page is incorrect.
Reply
3 Answers
Apr 04 (3 months ago)
Roman Miniailov
agent
wrote
Hi
Yes, our document is not full sometimes. I'm sorry.
You can use the CVMotionCellsBlock, like:
private CVMotionCellsBlock _motionCells;
and
_motionCells = new CVMotionCellsBlock(new CVMotionCellsSettings());
_motionCells.MotionDetected += _motionCells_MotionDetected;
_pipeline.Connect(_videoSource.Output, _motionCells.Input);
_pipeline.Connect(_motionCells.Output, _videoRenderer.Input);
VisioForge.CrossPlatform.OpenCV.Windows.x64 NuGet package is required. SDK can use OpenCV.
Yes, our document is not full sometimes. I'm sorry.
You can use the CVMotionCellsBlock, like:
private CVMotionCellsBlock _motionCells;
and
_motionCells = new CVMotionCellsBlock(new CVMotionCellsSettings());
_motionCells.MotionDetected += _motionCells_MotionDetected;
_pipeline.Connect(_videoSource.Output, _motionCells.Input);
_pipeline.Connect(_motionCells.Output, _videoRenderer.Input);
VisioForge.CrossPlatform.OpenCV.Windows.x64 NuGet package is required. SDK can use OpenCV.
Jul 09 (17 days ago)
Ken
wrote
Ater a long delay I am now trying this. I did add the nuget package referenced above (and after failure everything else with VisioForge and OpenCV in the name). If I call CVMotionCellsBlock.IsAvailable() it returns false and I get " [CVMotionCellsBlock][Build] Unable to build CVMotionCellsBlock" failures.
Is there another package I'm missing? Do I need a non-VisioForge package? If I need a non-VisioForge package it is unclear which one.
Is there another package I'm missing? Do I need a non-VisioForge package? If I need a non-VisioForge package it is unclear which one.
Jul 09 (17 days ago)
Ken
wrote
I guess I sort of figured it out. I had forgotten to add a NullRenderBlock and output the CV block to the null renderer. The strange thing was that for about 30 straight tries IsAvailable() returned false. After I added the null renderer and ran that way once IsAvailable decided to return true every time. I don't think that this is just my imagination.