Does anyone know how to create coordinate system using Particle analysis in Vision Development Module?

[Maverick...]

Hi All,

Does anyone know how to create coordinate system using Particle analysis in Vision Development Module?

I am developing a VI for visual inspection of a product. The product under inspection is not positioned in the camera field of view consistently enough to use fixed search areas. So I have to inspect based on a Coordinate system. When I searched for the solution I found 3 different methods.

1. Finding the edges

2. Finding Pattern

3. Particle analysis

I am unable to use the 1st method because I don't have any reliable edges on the product.

The second method also is not possible because the pattern which is available as reference is a circle. It can create orientation issues.

I think the third method may work because I have two circular objects which can be used as reference.

I have got idea how to use the first 2 methods. Can anyone help me with the third method?

[Silver_Shaper]

Hi Maverick,

Fixing co-ordinate system with particle analysis (one method) can be done by finding centroid of the particle (x and y locations), with reference from these locations you can fix the coordinate system.

Post your image so that will guide you easily..

[Maverick...]

Hi,

Thank you for your reply.

I am trying with "Pattern matching" method for creating coordinate system. Fortunately it is working fine for me till now. I will come back if this method fails.