Gom Aramis: Startfacetten können nicht identifiziert werden

[[Ma...]]

Hello everyone,

I'm having an issue with GOM Aramis Professional 2017 and would be really grateful for any support. In Essence, I'm trying to create a surface component on a measurement from a GOM stereo camera system (I need to check the exact camera type, I don't have the system here, but I can get that information later if required), in order to measure the strain distribution (see pic_1.png).

The Problem is, that GOM does not find any starting facette, and the problems looks similar to the one here: 

I checked if I can create a single Facet point, but I cant, since GOM is telling me that the matching is ambiguous (see pic_2.png). Trying to solve the problem, I already tried with other specimen with a new speckle pattern, but it didnt work neither. I checked the focus, recalibrated the camera system, but both initiatives didnt help neither.

My question is: Does somebody have any idea, what the problem could be? How could I do further analysis, to find out what the problem is? What do the values in pic_2.png mean? I am not sure how I can interpret the values in pic_2.png.

 

I would be really grateful for any help / support! Thanks already in advance.

[[Iv...]]

Moin,

please check the following TechGuide article. ZEISS Quality Tech Guide 

The problem in your case can be the pattern itself. "Mehrdeutiges Matching" lead to the fact that the sw can't clearly identify the facet in both camera images.  

Also the fact that the quality is very low with 1,571 is an indicator that the pattern isn't ideal. 

Greetings, Ivan