VNDetectTrajectoriesRequest: Minimum and maximum size

Question

Created Mar ’21

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Hi,

in which measurement unit are the diameters expected by the VNDetectTrajectoriesRequest when specifying a minimum and maximum size?

For example: A soccer ball has a diameter of roughly 22 cm.
Is the expected size then (if its meters?):

request.minimumObjectSize = 0.17 / videoWidth
request.maximumObjectSize = 0.27 / videoWidth

?

Thanks for your help!

Answered by konsti_q in 669421022

For anyone interested in this:

I came to the conclusion that the best way to setting these properties ist trial and error.

Just record the action and adjust the properties from "both sides" (min and max).

I am not done doing this, but i am tracking a golf ball and setting the max size to 0.2 is still "too big".

Hope this helps everyone else who doesn't know the unit of these properties.

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Answer 1

konsti_q OP

Apr ’21

Accepted Answer

For anyone interested in this:

I came to the conclusion that the best way to setting these properties ist trial and error.

Just record the action and adjust the properties from "both sides" (min and max).

I am not done doing this, but i am tracking a golf ball and setting the max size to 0.2 is still "too big".

Hope this helps everyone else who doesn't know the unit of these properties.

1