background image

 

 

46 

 

 

Caution!

 

When scanning large objects (like a car) and moving the scanner frequently, the scanner 
eventually may report that it cannot find markers.

 

You need to perform orientation. 

 

If the scan during stitching is in obviously incorrect position, it is clear that such scan should 
be deleted - select it in the tree and press Delete. If you want to create the reference grid 
press the 

File 

 Save reference grid.

 

 

Scan an object from all required sides, visually observing the correct alignment of the scans 
in the model view mode. 

 

Go to ScanMerge for further processing or create a new project to scan the object from the 
other side. 

Scanning on the turn table 

Scanning on the turn table is performed without markers. Scanned object is installed on the platform of 

the table and is automatically scanned from multiple angles. 

Scanning on the turn table: 

 

Create new 

project on turn table

 or open an existing one 

 

Center the object on the platform of the table 

 

Place  the  turn  table  to  the  scanner  so  that  during  scanning  the  object  is  on  the  optimal 
distance from the scanner. 

 

Configure exposure, brightness of lines and stripes, projector sharpness 

 

Go to 

Options

, set the scan area clipping parameters in the field 

Cut cylinder

, based on the 

size of scanned object 

 

Set the number of scans per the full turn of the table in the 

Positions

 field, or specify the set 

of rotation angles in angles in the 

Angles

 line. 

 

Note

 

The  optimal  number  of  table  positions  -  8-12.  With  the  increase  in  the  number  of  the 
possible positions, surplus amount of object fragments may also be created, which will led 
to a more long processing. 

 

Remove the scanned object from the platform of the table and set a calibration plate instead. 
The size of this  calibration plate should be one size smaller than the  one used  during the 
scanner calibration procedure. For calibration of turn table on the 4th scan area you should 
use the field "Evaluate rotation axis". 

 

Measure the distance from the central marker on the plate to the table plane, record this 
value in the field

 Height of central marker in Options. 

 

Press the button 

Define the axis of turn table

 in the 

Table calibration

 menu

Summary of Contents for Standard Plus

Page 1: ...1 RangeVision ScanCenter 2016 1...

Page 2: ...arameters 13 Connecting the turntable 14 Scanner setup 17 First launch of ScanCenter 18 Inital setup of cameras and lenses 19 Finding a working distance 21 Adjustment of the projector focus 20 Bringin...

Page 3: ...o object 39 Setting exposure of the cameras 40 Starting and stopping the scanning process 40 Viewing the model 40 Unwanted noise on the 3D model 41 Scanning without markers 42 Scanning with markers 42...

Page 4: ...ublications System requirements Operating system Windows 7 8 10 64bit Processor Intel Core i5 2 0 GHz and better RAM Not less than 4 GB Graphics Card Graphics card with HDMI output Other 3 USB ports W...

Page 5: ...R ngeVisi n is not a metrological tool for measuring Scanning zone number 1 2 3 4 0 Scanning Area WxHxD mm 460 345 345 300 225 225 133 100 100 66 50 50 850 530 530 3D point accuracy 0 085 mm 0 05 mm 0...

Page 6: ...ark objects Package contents R ngeVisi n 3D scanner is supplied in a plastic box with lodgement optionally can be supplied in a protected road hard case Camera tripod is placed in a separate bag The s...

Page 7: ...2 Machine vision camera 2 3 Tripod 1 4 Calibration plate 1 4 5 Kit of interchangeable optics 1 5 6 Stand for the calibration plate 1 2 7 USB disk with the software 1 8 The electronic key 1 9 Matting s...

Page 8: ...Carefully get the scanning module and all accessories out of the plastic case Set the tripod on the flat and stable surface Fit the scanning module 1 on the tripod Install module 2 on the front part...

Page 9: ...electronic key 8 into a free USB port Connect the rotary table 14 if equipped to your computer using the USB cable connect the power cord 3m cable Installing software and drivers Get the R ngeVisi n...

Page 10: ...or After connecting the projector it should be displayed in the system If the computer has several video outputs define the one to be used Note If the second monitor projector is not defined by the sy...

Page 11: ...settings of your projector are reset which can have an adverse impact on the scanner operation If this happens you need to adjust your projector using the control buttons on its body You must set the...

Page 12: ...ong with this the projector must be set up as mentioned above When using light filters there is no need to change user settings of projector color temperature for previous versions UAC setting For the...

Page 13: ...le most likely it is used by some third party application for example Skype Turn off the software which uses cameras and check camera availability in IDS Go to the menu item Additional settings and di...

Page 14: ...e name of connected device in Device Manager may be different for example Silcon Labs Arduino Uno Rangevision Table and so on Go to the Device Manager in the computer properties and look the number of...

Page 15: ...15 Model Type Additional power supply Default till 01 2016 Yes...

Page 16: ...nnected and all the settings are correct you will see the graphic mode of the table platform in the 3D model preview area In case of an error you will see the corresponding message Check the connectio...

Page 17: ...direction change the settings of the parameter Change direction in the configuration settings In contrastto the other modes before scanning on the turn tableyou should firstevaluate its axis perform t...

Page 18: ...tighten the lenses and light filters Place the calibration plate on the stand in front of the scanner Size of calibration plate is specified in the table on the back side of each plate Scanning zone T...

Page 19: ...t also check whether such programs as ICQ Skype Sipp int or similar software use one of the cameras as a web camera Initial setup of cameras and lenses Caution Check that the right hand camera represe...

Page 20: ...g ring 2 The iris tuning ring 3 The focus ring retention screw 4 The iris ring retention screw Do not completely remove the retaining screws of the lens rings it is enough just to loosen them After yo...

Page 21: ...th blue mesh on the camera view as shown in the figure below Blue vertical lines in the camera view must match the marks on the calibration plate Note To test the found distance D there is a formula L...

Page 22: ...e position on the specified working distance Install the calibration plate in front of the scanner on the found working distance D if you changed its position after the projector focusing procedure Tu...

Page 23: ...line in the both camera views as shown below Adjusting the position of the camera in a horizontal plane is controlled by the change of front frame To do this loosen the adjustment screws and by changi...

Page 24: ...rizontal plane For the correct operation of the scanner projector beam and optical axis of cameras must be lying in one plane This is done through regulating the position of cameras in relation to the...

Page 25: ...tion of the projector relative to the cameras To do this loosen the body at the bottom of the scanner and pick the position in which the check will be carried out successfully Final calibration of the...

Page 26: ...setting the exposure adjust sharpness of the lenses To do this turn on the Black light projector mode adjust the slider bar in the tool bar to a minimum value of electronic exposure value 1 open diap...

Page 27: ...ith red mean overlit areas with too bright image Configure lenses iris so that the lines on the calibration plate are as bright as possible but without a significant amount of excessive light Image br...

Page 28: ...ately 2 times greater than the brightness of the stripes Visually lines and stripes must be the same brightness Caution After the end of the setting up procedure carefully lock sharpness and diaphragm...

Page 29: ...canner setup can be completed by following the prompts of setup wizard in RangeVision ScanCenter menu Run the setup wizard select scanning zone to which you need to set up the scanner and carefully re...

Page 30: ...uspect that the camera moved due to unreliable mounting If you want to check the accuracy of performed calibration Before the work with the scanner recommended Calibration of rotary table is performed...

Page 31: ...is very different from the specified it is necessary to amend the formula L L b Co L change of the size of calibration plate L the size of calibration plate o change in the temperature in relation to...

Page 32: ...32 Mounting constructions Special stands are used in order to facilitate the calibration process and fix the calibration plates For plates 1 and 2 is used the construction S1 for plates 3 and 4 S2...

Page 33: ...n the dropdown list choose the calibration plate in use Focal distance of the lenses is detected automatically when the field is selected from the list Caution Check that the size of the plate specifi...

Page 34: ...itial accuracy value during calibration Working with the scanner don t forget to once in a while perform orientation it also serves as an accuracy indicator If the accuracy during orienting starts to...

Page 35: ...ion command Mount the calibration plate at the central position in the distance D to the scanner the first calibration position Press the Capture button Next following the steps make two more shots Af...

Page 36: ...D1 49 For example for scanning area 2 D1 49 236 mm Near end D1 49 2 118 mm Far end D1 49 2 118 mm Specify these values in the settings of plane clipping Adding new plates In the menu Service Full cali...

Page 37: ...30x530 mm This scan area can be used only if there is already a scanning zone 1 To configure the scanning zone 0 Install lenses with focal length of 9 mm and Blue light filters on the cameras Perform...

Page 38: ...objects that contain large contrast areas for example black lettering on white paper Geometrical distortion may appear in places with strong contrast Scanning principle and methods If you re shooting...

Page 39: ...th where you want to save the project consider a large volume of scan data If you have created a project with markers the Markers dialogue box with a choice of colors appears it is described in more d...

Page 40: ...ese parts or set the scanner for a larger scanning zone Setting exposure of the cameras After you place an object at the needed distance switch the projector to the Lines and Stripes lighting mode Adj...

Page 41: ...view As long as computer resources allow it the model is displayed in the original quality without simplification When loading a project with a largeamount of data visualization of themodel can be sim...

Page 42: ...ination Blue Light On lenses you should install special light filters which allow only the blue light projected by the scanner This allows to carry out scanning procedures in bright lighting condition...

Page 43: ...and delete by pressing the Delete button Place an object or the scanner in a different position and scan the next fragment Thus scan the desired areas of the surface As you finished go to the S nMerge...

Page 44: ...in different formats b segrid b txt from third party sources for example from photogrammetric system that allows you to scan large objects for example vehicles without significant loss in accuracy Wh...

Page 45: ...a reference grid select the markers mode left picture below on the top toolbar If you are scanning the object itself with the grid or without it select the Model and markers mode right picture below o...

Page 46: ...to the scanner so that during scanning the object is on the optimal distance from the scanner Configure exposure brightness of lines and stripes projector sharpness Go to Options set the scan area cl...

Page 47: ...However if much more check the accuracy of installed lenses and that cameras location corresponds to the selected calibration plate by the scale The distance should be found from the plate The formul...

Page 48: ...then the calculated diameter of a marker may not match the specified one and markers will not be considered as such Perform orientation or calibration In addition check the size of the markers specif...

Page 49: ...s of rotary table is not evaluated The position of scanner or table changed after evaluation The scan object should be mounted in a fixed position on the area otherwise there may be slippage of the ob...

Reviews: