blob detection

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venkateshn
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blob detection

Postby venkateshn » Thu Nov 08, 2018 2:39 pm

in blob detection i am able to identify the object, i wan to find out that how much time it is taking to detect blob object (single or multiple blob object).
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kwagyeman
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Re: blob detection

Postby kwagyeman » Thu Nov 08, 2018 3:19 pm

Hi, this is just the inverse of the FPS. So, if you're running at 30 FPS then it's 33ms.
Nyamekye,
venkateshn
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Re: blob detection

Postby venkateshn » Thu Nov 08, 2018 11:28 pm

What is the SI unit of fps?? is it hertz in this case
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kwagyeman
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Re: blob detection

Postby kwagyeman » Sat Nov 10, 2018 10:26 pm

Yes.
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venkateshn
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Re: blob detection

Postby venkateshn » Mon Nov 12, 2018 12:34 am

how to measure latency and accuracy in blob detection experiment
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kwagyeman
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Re: blob detection

Postby kwagyeman » Mon Nov 12, 2018 12:10 pm

? You have to write some more detail on what you want.
Nyamekye,
venkateshn
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Re: blob detection

Postby venkateshn » Mon Nov 12, 2018 12:21 pm

I am doing marker based detection with normal color led like rgb colors.. I am using blob detection single color script for tracking leds.. Since it is finding blob.cx() and blob.cy() I want to find out how accuratey it is tracking and finding blob.cx and blob.cy
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kwagyeman
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Re: blob detection

Postby kwagyeman » Mon Nov 12, 2018 12:36 pm

I see. We have no metric for this.

Um, cx and cy are just the sum of x/y pixel positions in the tracked color list divided by the number of pixels tracked. Google centroid.

If you want a tracking confidence... then just use the density() method to determine if the object is solid or not. density is the number of pixels divided by the size of the bounding box. When low it means the lock is bad. When high it means the lock is better (i.e. you are tracking all pixels well).
Nyamekye,

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