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Need to perform robust feature extraction and tracking to determine the motion of the camera with respect to a stationary background ?

Need to perform robust feature extraction and tracking to determine the motion of the camera with respect to a stationary background ?

‎11-25-2002 09:05 AM

i have tried to use intensity thresholding but the variations make this unreliable. I need to determine a way to efficiently extract reliable features within a ROI (which can be determined by the last known speed of the platform) and correspond these between successive images to determine speed ? Are there any image analysis/image processing gurus out there? I have enclosed a typical image from one of my sequences (please note the faint stripe of light moves with the platform - it is not a stationary feature)
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Re: Need to perform robust feature extraction and tracking to determine the motion of the camera with respect to a stationary background ?

‎11-26-2002 05:53 PM

I tried equalizing your image (Lookup Table: Equalize) and searched for a horizantal edge (Find Straight Edge: Horizantal Edge) with a very high contrast value (100) inside a very big ROI and that seems to work fairly robust. I'm attaching the Vision Builder Script.

Let me know if you have any questions.

Regards,

Yusuf C.
Applications Engineer
National Instruments
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