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Insect Speed & Displacment

Hi All;

 

I've been reading up on the new 3d stereo imaging algos for LabVIEW.  I have an application that needs measurments of Bee displacement & velocity.  Does this require 3d stereo imaging? Can I do it with 2d? Any references to something similiar would be greatly appreciated.

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Hi rberger,

 

Could you please be more specific as to which algorithms you are referring to?  A link to the information you are referencing would be great.

 

In the meantime, here is some documentation on 3D imaging within LabVIEW which you might find useful:

 

http://www.ni.com/white-paper/14103/en

Andrew T.
National Instruments
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Hi Thibber:

 

From reading the white paper, I understand one can retrieve depth information using stereo vision setup.  We have an underground cylindrial tunnel with 5ft diamter and 208ft length set up to take measurments on bees.  Two important measurements we would like are displacement and velocity.  The white paper describes how defects can be obtained in 3D.  I understand THEORETICALLY one can obtain displacement & velocity mesurements within 3D space.  My concern is the white paper does not address limitation in NI's vision acquisition rates, realtime processing, etc.  Ideally, we will have a colony of bees flying together, acquire images and calculate displacment and velocity in realtime.  Max speed of bees can be as high as 20mph.  But typical measurements will be 12-15mph.  Is there any limitation in NI's 3D vision?  Am I limited in computing power?  What is the fastest acquisition rates anyone using NI Vision (2D & 3D) has encounterd?  Is this wishful thinking?

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Are you hoping to track all of the bees at once or a single bee?

 

Have you implemented a 2D setup at all to start? The Optical Flow Example is a good place to start for 2D tracking.

Cameron T
Applications Engineer
National Instruments
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