Hello,
I was trying to reply to a thread to which I was participating but then it was abruptly closed, I’ll share here the link: How To Calibrate MINI?
I’ll give some more information on what my environment is and what I found out.
I’m scanning a plant (about 4cm minimum) in a pot, together with a reference object which is briefly described as a cube on a stick (cube dimention is 1.5x1.5x1.5cm).
I’m using these settings: high accuracy, feature tracking, dark object (because the green of the plant is better picked up).
I spent two months of trials to optimize the scanning properties and post-processing of the scanned model, and in these period everything worked fine, also scanning only two of my reference objects together (which has small dimentions as described before), this to say that the small size of the object might influence but it has worked before so the issue is strictly related to the scanner calibration.
The scanning procedure consist in placing the pot with the plant and the object on the rotator plate turning at 55 r/min, after 800 frames the scan is terminated.
A week ago the first issues raised when trying to scan (see image)
Therefore, I decided to calibrate the scanner for the first time, using the software present in the bottom left side of the RevoScan5 app. The results were miserable.
I then found this thread, so I tried to use the software shared here Revo_Calibration_for_win_v1.0.2.31.zip - Google Drive (by the way, very sketchy way to share important piece of softwares for commercialized products). This software does work better and gives you information about the sd at the end of the calibration procedure, but I still find it very difficult to calibrate properly the scanner. Using my hands it took me 4 tries to manage to finally get close to the expected 0.5 sd (reaching only 0.470).
After recalibrating the scanning procedure worked fine again which is good, but having to recalibrate the scanner scares me since the procedure could go very wrong and it’s very difficult to reach good results regarding the calibration.
I would suggest to find a better solution to calibrate than just holding the camera by hand in different position pointing it to the calibration plate and while looking at the screen. It’s not practical, not user friendly, and takes time and skills to carry on correctly and I will have to perform it many times throughout these years.
Thank you.