3rdTech DeltaSphere-3000 Manuale utente

DeltaSphere-3000
Laser 3D Scene Digitizer
User Manual v3.2
Revision B
3rdTech, Inc.
Copyright ©2001-2005 3rdTech, Inc.
9/23/2005
3rdTech, Inc.

Table of Contents
1
Introduction .....................................................3
5
DeltaSphere Color Setup...............................32
1.1 Using This Manual............................................4 5.1 Color Option Hardware................................... 32
5.1.1 Components............................................ 32
2
DeltaSphere-3000 Setup..................................5
5.1.2 Mounting the Camera............................. 32
2.1 Components.......................................................5 5.2 Installing the DeltaSphere Color Option
Software.......................................................... 36
2.2 Physical Setup ...................................................5
2.2.1 Camera Tripod Installation......................6 5.2.1 IEEE 1394 and Camera Driver.............. 36
2.2.2 Tribrach Installation.................................8
6
Scanning Operation with Color....................37
2.2.3 Tripod Accessories ...................................9 6.1 Range and Color Scanning Overview............. 37
2.3 Installing DeltaSphere Software......................12 6.1.1 Scan for range........................................ 37
2.3.1 Installation Procedure............................12 6.1.2 Adjust and Connect the Camera............. 37
2.3.2 SceneVision-3D Configuration...............14 6.1.3 Set Color Scanning Controls.................. 38
2.3.3 DeltaSphere-3000 Network Connection.14 6.1.4 Acquire Images....................................... 40
3
SceneVision-3D Introduction........................16
6.1.5 Manual Color......................................... 40
3.1 Data/File Types ...............................................16 6.2 Color Scanning Controls................................. 41
3.2 Scene Files.......................................................17 6.2.1 Camera Settings Window ....................... 41
6.2.2 Auto Acquire........................................... 42
3.2.1 Creating Scene Files from a Scan
Session....................................................18 6.2.3 Manual Acquire...................................... 43
3.3 SceneVision-3D Uses......................................18
7
Viewing Tools.................................................45
3.3.1 Acquiring Data.......................................18 7.1 Viewing Range Data....................................... 45
3.3.2 Viewing Data..........................................19 7.2 Viewing 3D Model Data................................. 47
3.3.3 Processing Scan Data.............................19
3.3.4 Data Analysis and Annotation................19 7.3 Viewing images............................................... 51
3.4 Creating a Scene..............................................20
8
Annotation and Analysis Tools.....................53
3.4.1 The SceneVision Window Layout............20 8.1 Draw & Measure Tools................................... 53
3.4.2 Creating Scenes from a Scan Session.....21 8.1.1 Landmark Points.................................... 53
3.4.3 Creating Scenes from a Single Data
File..........................................................21 8.1.2 Select and Move Annotation................... 55
8.1.3 Draw Measure Line................................ 55
3.4.4 Creating Scenes from a Directory..........22 8.1.4 Outline Tool ........................................... 56
4
Basic Scanning Operation.............................24
8.1.5 Select Region.......................................... 57
8.1.6 Create Plane........................................... 59
4.1 Operating Guidelines.......................................24 8.1.7 Perpendicular Line Tool ........................ 61
4.2 The SceneVision Scan Tab..............................24 8.1.8 Intersecting Planes................................. 62
4.2.1 Running SceneVision..............................25 8.1.9 Intersecting Lines and Planes ................ 62
4.3 Scan Parameters ..............................................26 8.1.10 Wall Intersection Wizard........................ 62
4.3.1 Setting Scan Parameters.........................26 8.1.11 Corner Line Wizard................................ 64
4.3.2 Using the Pan Controls ..........................29 8.1.12 Angle Measures...................................... 66
4.3.3 Start… Button.........................................30 8.1.13 Intersecting Planes with the Model........ 66
4.3.4 Range Data.............................................30 8.1.14 Linking Endpoints .................................. 66
4.3.5 Additional Scans.....................................31
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8.2 Additional Functions.......................................67
8.2.1 Viewpoint Tool........................................67
8.2.2 Blood Spatter Tool..................................69
8.2.3 Annotation Layers...................................72
8.2.4 Save Window as Image...........................72
8.2.5 Print........................................................72
8.2.6 Create 3D Popup from Region...............72
9
Processing Data – Range Alignment............74
9.1 General Approach............................................74
9.2 Range Alignment Procedure............................74
9.2.1 Create or Load a Scene..........................75
9.2.2 Select the Range Align Tab.....................75
9.2.3 Aligning More Files................................78
10
Processing Data – Color Alignment ......79
10.1 Procedure.................................................79
10.1.1 Create or Load a Scene..........................79
10.1.2 The Color Align Tab...............................79
10.2 Masking in Color Alignment...................84
10.3 Miscellaneous Color Alignment Features 86
11
Creating 3D Models................................87
11.1 Create 3D Popup from Region ................87
11.2 Create Model from Selected Data............88
11.3 Add Selected Data to Model....................89
11.4 Create Simplified Model .........................89
12
Editing......................................................90
12.1 Model Editing..........................................90
12.2 Inserting High-resolution Photos.............91
12.3 Making a Photo Hotspot..........................92
12.4 Deleting Data...........................................92
12.5 SceneVision-3D Viewer.......................... 93
12.5.1 Installation ............................................. 94
12.5.2 Data Preparation and Transfer.............. 94
13
Menu Reference.......................................96
13.1 File Menu ................................................ 96
13.2 Edit Menu.............................................. 100
13.3 Select Menu........................................... 102
13.4 View Menu............................................ 103
13.4.1 ‘View Menu’ for Model Data ............... 103
13.4.2 ‘View Menu’ for Photo or Range Data 105
13.5 Draw & Measure Menu......................... 107
13.6 Window Menu....................................... 109
13.7 Help Menu............................................. 109
13.8 Viewing Parameters Toolbar................. 110
14
Troubleshooting ....................................111
14.1 FAQ....................................................... 111
14.2 Support Information.............................. 112
15
Appendix................................................113
15.1 SceneVision Configuration File............ 113
15.2 RTPI File Format Version 3.0............... 117
15.3 C++ Code for Reading and Writing
RTPI Files ..................................................... 119
15.4 Changing the IP Address of the
DeltaSphere-3000.......................................... 119
15.4.1 Using DHCP ........................................ 123
Scanning Checklist..........................................124
Index.................................................................125
DeltaSphere-3000 3D Scene Digitizer 2 9/23/05

1Introduction
The DeltaSphere-3000 is a portable, long-range, high precision and high-speed 3D scene
digitizer. Employing an embedded time-of-flight laser rangefinder, the DeltaSphere-3000
measures millions of 3D points – their location and the intensity of the laser return – for areas
up to 40ft. distance from the scanner with the red laser; 50 ft. for the infrared laser. These clouds
of 3D points can be used for measuring the area or objects scanned, and for producing 3D,
computer graphics models. With the color option, the DeltaSphere-3000 can also provide a full
color value for each point as well as high-resolution texture maps.
This manual provides information about the DeltaSphere-3000:
•Software installation and hardware set-up
•Scanning operation
•Data viewing, processing, analysis and presentation
NOTE: The DeltaSphere-3000 includes a Class IIIa or Class 3R
Laser product. Please read the Operating Guidelines for safety
information about operating a laser in Section 4.1.
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1.1 Using This Manual
Set-up and Installation
Section 2 describes the set up of the DeltaSphere hardware and SceneVision software.
Background Information
Section 3 is an introduction to SceneVision software, including basic information about data
types and file formats.
Scanning
Section 4 is a guide to scanning with the DeltaSphere and SceneVision. All users should read
this section before operating the DeltaSphere-3000.
DeltaSphere Color Option
Section 5 describes the DeltaSphere color option set up.
Section 6 is a guide to range and color capture with the DeltaSphere and SceneVision.
SceneVision Functions – Data Preparation, Annotation, Analysis, and Editing
Sections 7 and 8, on Viewing Tools and Annotation and Analysis Tools, are principally for those
involved with viewing and analysis of DeltaSphere data, though they may be of interest to all
users.
Sections 9 and 10, on Range Alignment and Color Alignment, are primarily for those involved in
data preparation. They describe the alignment needed to combine multiple scans and to add
color to a scan.
Section 11describes how to create 3D models and Section 12 how to edit those models.
SceneVision Reference Guide
Section 13 is a reference to all of the functions found in SceneVision-3D, organized by menu.
This is often the easiest place to locate information about a particular function.
Troubleshooting
Section 14 provides troubleshooting information.
Appendix
The Appendix, Section 15, includes technical information for programmers, as well as some
useful details about the system configuration.
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2DeltaSphere-3000 Setup
2.1 Components
The DeltaSphere-3000 is a self-contained, portable unit combining a computer controlled laser
range finder, elevation and azimuth positioning motors, and embedded CPU. See Figure 1.
In addition, the system ships with a quick-release mount for a photographer’s tripod, an AC
power pack, software and a 12-volt DC cable for an automobile cigarette lighter or equivalent.
The DeltaSphere-3000 color option includes a professional color digital camera and lens, a
special camera mount and additional software. The infrared version includes one pair of laser
safety glasses.
Figure 1 DeltaSphere-3000 3D Scene Digitizer
2.2 Physical Setup
The DeltaSphere-3000 has several mounting options designed to accommodate both
professional camera tripods and surveyor’s tripods. The DeltaSphere’s base plate has three
mounting holes – 1/4-20, 3/8-16 and 5/8-11.
The 5/8-11 hole can be used to attach a Tribrach mounting plate, available from
many surveyor’s supply companies, or to mount directly on a surveyor’s tripod.
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The 3/8-16 hole is for attaching one part of the two-part, quick-release camera mount
that is provided. The other part, the receiver end, attaches to a tripod with either a
¼-20 or 3/8-16 screw. This is described below.
The 1/4-20 hole can be used to attach to a standard camera mount. Using this size
mount is not recommended.
2.2.1 Camera Tripod Installation
Remove the DeltaSphere-3000 scanner from its shipping case and place it on a level surface as
shown in Figure 2.
Note: When placing the DeltaSphere-3000 on a flat surface, always
put the side with the rubber feet down; never place it on the side
with the various connectors.
The quick release camera mount provided is recommended for use with a photographer’s tripod.
We recommend a heavy-duty tripod with a 3/8-16 mounting screw and a ‘geared column’.
Figure 2 shows the base of the DeltaSphere-3000 as well as the two parts of the quick-release
camera mount.
Figure 2 DeltaSphere-3000 base plate and quick-release camera mount
To use this mount, first attach the 3/8-16 screw of the quick-release base plate to the
DeltaSphere base plate as shown in Figure 3.
Note: When tightening the quick release base plate, hold the
DeltaSphere’s cylindrical base plate firmly to avoid putting tension
on the positioning motor.
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Figure 3 Base plate with quick-release mount installed
Next, attach the receiver part of the mount to the tripod using either the 3/8-16 (highly
recommended) or 1/4-20 (not recommended) screw from the tripod. This is shown mounted in
Figure 4.
Figure 4 Quick-release mount base plate on tripod
To attach the DeltaSphere-3000 to the tripod, ‘open’ the receiver mount by moving the release
lever and safety lever as described in the quick mount instructions provided. Holding the
DeltaSphere securely by both handles, place the base of the DeltaSphere in the mount as shown
in Figure 5, with two sides of the hexagonal plate securely under the receiver’s ‘dovetail sides’ .
(The DeltaSphere-3000 is not shown in order to make the mount mechanism visible.)
DeltaSphere-3000 3D Scene Digitizer 7 9/23/05

Open
Figure 5 Tripod quick mount unlocked
Pressing down gently on the DeltaSphere will cause the mount to lock in a closed position as
shown in Figure 6. After it has snapped shut, apply firm pressure to the lever to ensure a tight
fit.
Closed
Figure 6 Tripod quick mount locked
The DeltaSphere-3000 can be removed by unlocking the mount mechanism and lifting the
DeltaSphere.
NOTE: Be careful to fully support the DeltaSphere-3000 at all times
until you are sure it is locked into place.
2.2.2 Tribrach Installation
The DeltaSphere-3000 can be mounted directly onto a surveyor’s tripod, or onto a Tribrach
adaptor, using the 5/8-11 mounting hole on the base plate.
Once the Tribrach adaptor is mounted on the DeltaSphere-3000, it can be mounted on a standard
Tribrach.
Note: The 5/8-11 hole is located directly under the ‘origin’ of the laser scanner
for alignment with surveying instruments.
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2.2.3 Tripod Accessories
When controlling the DeltaSphere-3000 from a laptop, it is helpful to mount the laptop on the
tripod. (See Figure 7) This shortens the cables needed for both the Ethernet and 1394
connections, and also makes it easier to move the system to different positions.
Figure 7 DeltaSphere-3000 with laptop
The configuration in the image is comprised of the following off-the-shelf components.
•Bogen/Manfrotto #475B Professional Tripod Legs with geared column
•Bogen/Manfrotto #3290 Monitor/Projector Platform
•Bogen/Manfrotto #2900 Super Clamp with Standard Stud (attaches to tripod leg)
•Bogen/Manfrotto #155 Double Ball Joint Head with #2933 Camera Platform (attaches
to Super Clamp and to the Monitor Platform)
These components are available from many photographic equipment suppliers, as well as from
3rdTech. In this section we will describe how to assemble the laptop stand.
1. Place the double ball joint in the super clamp as shown in Figure 8. To do this, loosen the
thumbscrew on the ball joint and hold in the metal button release to insert the shaft of the
double ball joint. Tighten the thumb screw securely.
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