Rangevision SPECTRUM Manual

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RANGEVISION
Setup and calibration
SPECTRUM
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Contents
Introduction 3
Technical specifications 4
System requirements 4
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Preparing for work
Package contents 5
Installing software and drivers 7
Setting up your computer for work with the scanner 
Connecting projector 8
Configuring computer parameters 9
Scanner Assembly
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Scanner setup
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
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Calibrating the scanner
Calibration plate 21
Full calibration 23
Fast calibration (orientation) 25
Focus assessment during calibration 27
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2

Introduction
ThankyouforchoosingRаngeVisiоnSpectrum!
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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.
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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.
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3

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Technicalspecifications
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3Dresolution
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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.
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4
Scanningzone
L
M
S
Scanning Area (WxHxD) (mm)
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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
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

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

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6
№
Name
qty.
1
Scanning module:
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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

Installingsoftwareanddrivers
Get the RаngeVisiоn software (equipped with the scanner) and run the installer -
RаngeVisiоn SсаnCenter setup.
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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.
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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.
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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.
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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.
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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.
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8

Configuringcomputerparameters
Toavoidarecurrenceoftheproblemsduringthescanneroperation,youmustturn off
the screensaverandsleepmode.
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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.
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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.
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*old color variant with identical specifications is pictured
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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:
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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.
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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.
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11

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Select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.
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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.
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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.
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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.
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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.
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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.
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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.
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Lensadjustmentiscarriedoutbyrotatingtheringontheobjective.Loosen(donot
unscrew!)theretentionscrewandrotatethering.
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Lensadjustmentiscarriedoutbythefollowingelements:
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1. Theiristuningring
2. Theirisringretentionscrew
3. Thefocustuningring
4. Thefocusringretentionscrew
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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.
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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.
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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.
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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.
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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.
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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.
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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.
16

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Finalcalibrationofthecameras
Afterthecamerasarepositionedaligntheprojectedcrosswiththecentralmarkon the
calibrationplateandproceed.
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17

Beforesettingtheexposureadjustthesharpnessofthelenses:
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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.
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Itisconvenienttousecameraviewzoombyleft-clickingthecameraviewstoassess
sharpness.
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Settheprojectortothelinesandstripesmode.Settheexposureforthecameras
between 30and60(lessiftheobject,whichyouareplanningtoscanisdarkand more if
it isbright).Bydefaultthevalueis45.
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18

Areasilluminatedwithredmeanoverlitareaswithtoobrightimage.
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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!
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19

If you are setting up the 3rd scanning area, 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.
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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.
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20