Rangevision SPECTRUM Use and care manual

RANGEVISION
Setup and calibration
SPECTRUM

Contents
Contents 2
Introduction 3
Technicalspecifications 4
3Dresolution 4
Systemrequirements 4
Preparingforwork 5
Packagecontents 5
Installingsoftwareanddrivers 7
Settingupyourcomputerforworkwiththe scanner 8
Connectingprojector 8
Configuringcomputerparameters 9
ScannerAssembly 10
Scannersetup 11
ScanCenterNGlaunch 11
Selectscanningzone 12
Calibrationfieldparameters 13
Placingthecalibrationplate 13
Initialsetupofcamerasandlenses 14
Checkingcameraarrangement 15
Findingaworkingdistance 15
Adjustmentoftheprojectorfocus 16
Bringingthecamerastogether 16
Finalcalibrationofthecameras 17
Calibratingthescanner 21
Calibrationplate 21
Fullcalibration 23
Fastcalibration(orientation) 25
Focus assessment during calibration 27
2

Introduction
ThankyouforchoosingRаngeVisiоnSpectrum!
PleasereadthismanualbeforeusingRangeVision3Dscanner.Herearedescribed the
procedures for preparing the scanner, installing the required drivers, calibration
procedure, scanning procedure,andtipsforacquiringhigh-quality three-dimensional
object model.
Informationmaybeamendedfromtimetotime.Thesechangeswillbeinserted into the
new versionsofthemanual,orintheadditionaldocumentsandpublications.
3

Technicalspecifications
Scanningzone
L
M
S
Scanning Area (WxHxD) (mm)
520*400*400
320*250*220
120*90*100
3Dpointaccuracy
0.12mm
0.06mm
0.04mm
Model
Spectrum
Resolutionofcameras
3Mpix
Diagonalofthematrix
1/2”
Texturescanning
Yes
3Dresolution
Scanningzone
L
M
S
3Dresolution
0.25mm
0.15mm
0.06mm
Operationdistance
1.05m
0.6m
0.3m
Systemrequirements
●operatingsystem-Windows7/8/1064bit,
●processor-IntelCorei3/i51.8GHzandbetter,
●graphicscardwithHDMIoutput,
●RAM-Notlessthan8GB,
●3 USB-ports.
4

Preparingforwork
Packagecontents
RаngeVisiоn3Dscannerissuppliedinaprotectedroadhardcase.Cameratripodis
placedinaseparatebag.
Thescannerisequippedwiththreescanningareas.Scanningareaisacalibrationplate
andstandforthecalibrationplate.
5

№
Name
qty.
1
Scanning module:
Installation construction with projector
1
Cable kit for connection to a PC (2 USB + HDMI)
1
2
Machine vision camera
2
3
Tripod
1
4
Calibration plate
3
5
Kit of optics
1
6
Stand for the calibration plate
2
7
USB disk with the software
1
8
License dongle
1
9
Power Cord 5 m
1
10
USB hub
1
11
Hex key
1
12
Rotary table + cables
1
6

Installingsoftwareanddrivers
Get the RаngeVisiоn software (equipped with the scanner) and run the installer -
RаngeVisiоn SсаnCenter setup.
Followingtheprompts,selectthedesiredlanguage,typeandpathforinstallation.
Afterthefileshavebeencopiedinstalldriversandgraphicslibraries,necessaryfor
thecorrectoperationofRangeVision3Dscanner.
If you have access to the Internet RangeVision ScanCenter NG will automatically notify
you when updates are available. You can check for updates manually by clicking
About → Check for Updates.
7

Settingupyourcomputerforworkwiththe scanner
ForthecorrectoperationofRаngevisiоn3Dscanneryouwillneedtosetupyour
computer. Thisprocedureisperformedoncebeforethefirstuseofthescanner.
Connectingprojector
TurnontheprojectorandconnectittotheHDMI-portofyourvideocard.After
connecting the projector,itshouldbedisplayedinthesystem.Ifthecomputer has
several videooutputs,definetheonetobeused.
1. Right click on the desktop, select Screen resolution,
2. Makesurethattheprojectorhasbeensuccessfullyrecognizedbythesystem
andthatbothconnectedscreensaredisplayed.
8

Configuringcomputerparameters
Toavoidarecurrenceoftheproblemsduringthescanneroperation,youmustturn off
the screensaverandsleepmode.
Byclickingrightmousebuttononthedesktop,selectPersonalize→Screensaver and
turn off thescreensaver,disableturningoffthedisplayandputtingthe computer in sleep
mode.
9

ScannerAssembly
1. Mountthecamerasonthescanningmodule.
2. Installthescanningmoduleontripod.
3. ConnecttheprojectorwithHDMIcable.
4. ConnectcameraswithUSBcables.
5. Connectpowersupplyandturnontheprojector.
*old color variant with identical specifications is pictured
10

Scannersetup
ScanCenterNGlaunch
Run RangeVision ScanCenter NG.
If the scanner is not connected or drivers aren't installed, an indication will appear on the
Start Screen, as shown below:
Check the connection of cables, power supply, and then click Update. If you are sure that
all the components of the scanner are connected correctly and the connection error
persists, manually select hardware in Hardware settings. If necessary, contact the
technical support of your reseller. If the scanner is not connected intentionally and none
of the components can be found, only the processing functions of ScanCenter NG will be
available.
In the case if all the settings are correct, after starting the program, you should see the
image from the cameras in the main application window.
11

Selectingscanningzone
After preparatory actions on setting up the computer, you should carry the
scanner setting procedure. Select Configure scanner for a new area in
Calibration window on the Start screen and follow the instructions for each step.
Before beginning the configuration, select the desired scan area (zone), depending on
the object scanned. Scanning area is a set of interchangeable optics, calibration plate
and standforthecalibrationplate, which help toconfigurethescannertoscan a certain
area. Inthemajorityofcases, scan areaiscorrectlymatched,ifthesizeof the object
approximately equalstothe size calibrationplate.
12

Calibrationfieldparameters
Takethenecessarycalibrationtoconfigurethescannertotheselectedscanarea. Make
sure thatthescanareaisincludedinthepackageofyourscanner.
The exact size and measurement temperature are written on the label on the reverse side
of the calibration plate. Enter these values into the Configuration Wizard or select from
the drop-down list of previously entered values.
Placingthecalibrationplate
To find a working distance place the calibration plate in front one of the cameras. To
install calibration plate use special stands.
For plates L and M use large stand with special slots for plate installation; for plates S
and axis evaluation plate use a small stand.
13

Initialsetupofcamerasandlenses
Whenyoufirstsetupthescanner,imagefromthecamerasmaynotbeinfocusorcan
betoobrightortoodarkduetodifferentexternallightingconditions.Adjustcamera
lenses,sothatthebrightnessisacceptable:withouttheredoverexposedareasandnot
toodark.
Lensadjustmentiscarriedoutbyrotatingtheringontheobjective.Loosen(donot
unscrew!)theretentionscrewandrotatethering.
Lensadjustmentiscarriedoutbythefollowingelements:
1. Theiristuningring
2. Theirisringretentionscrew
3. Thefocustuningring
4. Thefocusringretentionscrew
Donotcompletelyremovetheretainingscrewsofthelensrings,itisenoughjustto
loosenthem.Afteryoufinishedtuningthelens,locktheadjustmentringswiththe
screwsprovided.
14

Checkingcameraarrangement
Images from right and left cameras can be mismatched or flipped. Use the buttons
present on this step to arrange them correctly.
Ifthissetupwizardstepisnotneededaftercompletion,itcanbeturnedoffby checking
the Don't show thisstepanymorebox.Itcanbebroughtbackbychecking the Show the
camera arrangementstepinsetupwizardboxlocatedin Settings→Software →Cameras
menu.
Findingaworkingdistance
Thescannerhasownworkingdistance(distancetotheobject)foreach scanning area.
When youconfigureyourscanner,thisdistanceis determined bycalibrationplate.
Tofindaworkingdistanceplacethecalibrationplateinfrontofoneof the cameras. By
moving thefieldclosertoorfurtherawayfromthecamera, align the far markers of
calibration platewithbluelines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.
15

Adjustmentoftheprojectorfocus
Duringthescanneroperationtheprojectorprojectstructuredlighttotheobject- coded
lines andstripes.Toensurethatthelinesaresharp,theprojectormust be focused on
the workingdistanceofthescanner.
Byswitchingthemode"LinesandStripes",adjustthefocusoftheprojector,sothat the
lines on thecalibrationplatewereassharpaspossible.Checkandifit’s necessary to
adjust the projector focus.
16

Bringingthecamerastogether
Fortheworkofthescanneritisnecessarytopointbothcamerastothesame position
on the specifiedworkingdistance.Installthecalibrationplatein front of the scanner on
the foundworkingdistance(ifyouchangeditsposition after the projector focusing
procedure).
Turn on the Cross light mode and aim the scanner to the calibration plate. It is not
necessary to combine cross with marks on the plate at this stage, the focused projector
should be projecting a cross on any surface, located at the working distance from the
scanner. Move the cameras on the bar so that the vertical line of the light cross lies
approximately on the central vertical blue line in the both camera views.
17

Finalcalibrationofthecameras
Afterthecamerasarepositionedaligntheprojectedcrosswiththecentralmarkon the
calibrationplateandproceed.
Beforesettingtheexposureadjustthesharpnessofthelenses:
1. Turnon"Blacklight"projectormode.
2. Settheminimalexposurevalue(1)usingtheslider.
3. Openthelensirisasmuchaspossiblewithoutgettingoverexposure.
4. Adjustthelenssharpness.
Itisconvenienttousecameraviewzoombyleft-clickingthecameraviewstoassess
sharpness.
18

Settheprojectortothelinesandstripesmode.Settheexposureforthecameras
between 30and60(lessifthe scanning object is dark and more if it is bright).
By default the value is 49~50.
Areasilluminatedwithredmeanoverexposedareaswhere the image istoobright.
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brightnessof
bothcamerasmustbethesame!
19

If you are setting up for the ”S” FOV, it may be necessary to decrease the brightness of
lines and stripes due to the close distance to object. Decrease the brightness value, as
shown in the figure. Brightness value of lines is approximately 2 times greater than the
brightness of the stripes. Visually lines and stripes must be the same brightness.
Uponcompletionofallscanneradjustments,youshouldfulfilthefollowing conditions:
●camerasarepointedtoonepoint,locatedattheworkingdistancefromthe
scanner,
●atthesamedistancefocusedcamerasandimagefromtheprojector,
●atthestandardvaluesofelectronicexposure(30-60)imagefromthe
camerasisnotexcessivelybrightandnottoodark,
●alltheadjustmentandtheclampingscrewsaretightened.
20