Version 1.0 Manual10
Function Description
Measure only new images The image measurement is only carried out for newly added images. Old images are skipped.
If this option is not activated, the software carries out another image measurement for all
existing images, but this is only useful if the measurement parameters have been modied.
Itisrecommended to activate this option.
Example:
At the end of a measurement, a user realizes that some targets have been insufciently
captured. He takes 3 new images of this area. If this option is activated, the software carries
out an image measurement only for these 3 images and keeps the results oftheother images.
Bit code of targets Target coding: Users can select between 12-bit, 14-bit, 20-bit and Anco code oracombination
of Anco and 14-bit code. Depending ontheselected code, a valid point number range is
produced, which canbe further restricted under Index values (seebelow). Generally, only 14-
bit coding is used with the AMK software.
Target color Users can select between black and white targets. Simultaneous measurement of black and
white targets isalso possible.
Point numbers The range of the used point numbers can be restricted such that coded targets outside the
specied range are ignored.
Inner diameter of coded targets [mm] Entering the inner diameter of the coded targets prevents code segments being falsely
detected as non-coded targets. We recommend that users always specify the inner target
diameter of the smallest coded target to be used. If this function is to be deactivated, thevalue
0 must be entered asthe target diameter.
Allow very small targets If the images contain very small points (only ~3 pixels), this option should be activated.
However, this raises the risk ofincorrect measurements in the images, e.g. due to minimal
reflections, which increases the time required forpost-processing.
Image coordinates from le Instead of measuring in new images, it is also possible toimport the2Dimage coordinates
from a previous measurement (*.phc le).
Filter noisy images Activates additional lters to perform measurements in very noisy images (e.g.underwater
photogrammetry).
Contrast In the case of images with poor contrast, i.e. with a low grey scale value difference between
the target center and contrast ring, the value can be reduced to allow a target measurement to
be performed.
Min. target diameter [pixel] Minimum diameter that a target in the image must have toensure that itis detected
Recommendation: Increase the value when many incorrect points aredetected (reflection, texture of
the component).
Max. target diameter [pixel] Maximum size required for the diameter of a target intheimage toensure that this target is
detected.
Edge operator Users can select between Edge3, Edge5, Edge7 and Edge9. With higher values, blurred edges
are also detected.
Search rays to detect ellipses To detect the exact edge of an ellipses, a specic number ofsearch rays are used to examine
the ellipses. The number of search rays can be 32, 64, 128 or 256. The greater thenumber of
search rays employed, the more detailed theresult, but the higher thecomputation effort.
Max. deviation oftheellipses [pixel] Maximum permitted deviation of the measured ellipses from the shape of an ideal ellipse
Recommendation: Increase the value to perform measurements invery noisy images or when using
targets with poor print quality.
Lists the image measurement functions:
