Shining 3D Transcan-C_User Manual_V1.4.2
27
Turntable Alignment
If you do not want to stick marker points on the object you want to scan, and it is too big and covers
the coded targets on the turntable, you could choose turntable align.
Working Principle: Align the data with the assistance of turntable.
Note
: Need to keep the distance between turntable and scanner the same as it is during
calibration; Objects in regular shapes such as sphere and square are not suitable for this mode.
Turntable Coded Target Alignment
Note
: The feature of turntable coded target alignment is only available for Transcan-C.
The turntable coded target alignment works as follows: on every step of the turntable, the scanner
recognizes common coded targets on the turntable to calculate the new position of the object. At
least 4 common targets need to be recognized between 2 neighboring scans.
Note
: The object needs to be small without covering the coded targets, put the object on the
middle of the turntable, and make sure the object will not move during scanning; If you choose
turntable coded target alignment, the scanner head is requested to fix on the tripod to scan.
Feature Alignment
When the distance between turntable and scanner is inconsistent with it is during calibration, feature
alignment will be helpful.
Working principle: With feature alignment, after starting scanning, software will capture four data to
calibrate. The scans are matched by knowing the center and angle of rotation between successive
captures.
Note
: Objects in regular shapes such as sphere and square are not suitable for this mode. With
feature align, need to make sure the object will not move when turntable rotates. And the objects
need to have enough features for the software to recognize.
During the “verifying” steps, the software calculates the position of the turntable