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3rdTech DeltaSphere-3000 User Manual

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

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  • Page 1 DeltaSphere-3000 Laser 3D Scene Digitizer User Manual v3.2 Revision B 3rdTech, Inc. Copyright © 2001-2005 3rdTech, Inc. 9/23/2005 3rdTech, Inc.

  • Page 2: Table Of Contents

    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 ..........
  • Page 3 Changing the IP Address of the Editing............90 DeltaSphere-3000.......... 119 15.4.1 Using DHCP ........123 12.1 Model Editing.......... 90 12.2 Inserting High-resolution Photos..... 91 Scanning Checklist ..........124 12.3 Making a Photo Hotspot ......92 Index ..............125 12.4 Deleting Data........... 92 DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 4: Introduction

    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.

  • Page 5: Using This Manual

    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.

  • Page 6: Deltasphere-3000 Setup

    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.

  • Page 7: Camera Tripod Installation

    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.
  • Page 8 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’...

  • Page 9: 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.

  • Page 10: Tripod Accessories

    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.
  • Page 11 DeltaSphere. (You can adjust this later.) Figure 10 Super Clamp on Tripod Leg DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 12 In addition, optional wheels for the tripod make it easier to move to multiple positions within a room or other space. There are many available. One typical set would be • Bogen/Manfrotto #3156 Folding Auto Dolly Contact 3rdTech for additional information. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 13: Installing Deltasphere Software

    2.3 Installing DeltaSphere Software SceneVision-3D is the DeltaSphere’s software application. It serves many functions. It is the interface to the DeltaSphere-3000 during the scanning process and provides communication with the server software (pre-installed and running on the DeltaSphere-3000 scanner), device control, and data acquisition and display. With the color option, it also provides camera control and image acquisition.
  • Page 14 3rdTech. 2. Follow the instructions displayed after you run the program. It will show a machine serial number which you should email to 3rdTech. 3rdTech will use this number to send you a file that will unlock the SceneVision program.

  • Page 15: Scenevision-3D Configuration

    Figure 14). You will also need to connect the power pack to the power connection (2), plug in the power pack, and turn the power switch (3) on the DeltaSphere-3000 to on. Some systems also have a key that must be inserted and turned to on.
  • Page 16 Figure 14 DeltaSphere-3000 connections Note: SceneVision is described in great detail in the remaining sections of the manual. This is a quick test of the network setup. Enter your DeltaSphere’s IP address in the IP window. (The number may already be set from the factory settings in your configuration file.) Select Connect.

  • Page 17: Scenevision-3D Introduction

    The three principal kinds of data are described below. Range Data Range data is the raw data produced by the DeltaSphere-3000 Scanner. It consists of a long list of 3D points – typically millions of points. These points are described by their position when scanned and by the intensity of the laser’s reflection.

  • Page 18: Scene Files

    A scene file organizes all of the different data associated with a scanned scene. The scene might be a single scan of an object or room, multiple scans of an object or room, or DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 19: Creating Scene Files From A Scan Session

    – perhaps by two different users. 3.2.1 Creating Scene Files from a Scan Session Scanning a scene with the DeltaSphere-3000 can produce a large number of files. SceneVision provides a standard organization scheme so that all files are produced with a logical naming scheme and are stored with a logical file organization.

  • Page 20: Viewing Data

    (See section 12.) 3.3.4 Data Analysis and Annotation SceneVision provides a variety of tools for annotation and analysis of range, photo and 3D model data including: Measurement Drawing Adding labels, captions, and text annotations Attaching close-up photos DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 21: Creating A Scene

    All of these functions are described elsewhere in this manual. Note: You can turn the various toolbars on or off by right-clicking on an empty space in the toolbar and selecting from the popup menu that appears. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 22: Creating Scenes From A Scan Session

    SceneVision window. Note: If you try to open an image file, the program will assign to this photo the default ‘camera configuration file’. DeltaSphere-3000 cameras are calibrated and have associated configuration files (.cfg). This enables the mapping of photos to the range data.

  • Page 23: Creating Scenes From A Directory

    SceneVision you will be asked to specify the camera file at that time. Note: Accurate measurements and color alignment require having the correct camera configuration file specified for each image file used. Most current DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 24 File menu or by using ‘drag and drop’. Using the Open File command does not add to a scene but, rather, prompts you to close the current scene and create a new one. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 25: Basic Scanning Operation

    4 Basic Scanning Operation This section describes scanning with the DeltaSphere-3000 scanner. It is important to read the Operating Guidelines below before operating the system. 4.1 Operating Guidelines Use protective eyewear whenever there is a risk of being exposed to the output beam of the DeltaSphere-3000 or DeltaSphere-3000IR.

  • Page 26: Running Scenevision

    Windows Explorer. Connect to the DeltaSphere You are now ready to connect to the DeltaSphere-3000 scanner. Click on the Scan tab and new controls will appear along the bottom of the window, as shown in Figure 20, divided into three sections.

  • Page 27: Scan Parameters

    These will be explained individually in the sections that follow. The DeltaSphere-3000 scans a vertical array of points, then rotates about the vertical axis for the next vertical array, repeating this process until the specified field of view has been covered.
  • Page 28 0º in the vertical direction is defined to be a horizontal line from the center of the rotating mirror – again perpendicular to, and coming from, the front face of the DeltaSphere-3000. Positive values are measured up from that horizontal line; negative values are measured down. For example, a Vertical FOV from 0º...
  • Page 29 The Max range settings vary depending on the samples/degree and Speed. Several different settings are shown in the table below. Samples/Deg Speed (rev/s) Max Range Settings (in inches) 95, 280, 625, 999 55, 195, 480, 999 13.333 50, 185, 455, 985 35, 150, 390, 865 DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 30: Using The Pan Controls

    With the Pan controls, you can quickly and easily aim the scanner and specify the horizontal field-of-view of the DeltaSphere-3000. To use the Pan controls, you must first connect to the DeltaSphere-3000 as described at the beginning of this section. This enables the controls shown in Figure 21.

  • Page 31: Start

    DeltaSphere color option. The DeltaSphere-3000 acquires a large number of points. The client PC receives data over the network from the DeltaSphere-3000 and immediately saves it to disk. During a scan a progress bar, to the right of the Start button, shows what percentage of the scan is complete.

  • Page 32: Additional Scans

    Then, if the scene is still open, set the scan parameters once again and hit Start. You will be prompted for a new scan name which will be created in the same scene directory but in its own subfolder. Figure 22 SceneVision with Scan Data DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 33: Deltasphere Color Setup

    Note: This section describes the camera mount that began shipping in April, 2004. Prior versions used a different mount. The camera mount has two pieces: a receiver that permanently mounts to the DeltaSphere-3000, and a camera bracket that slides into the receiver and attaches to the camera’s tripod mount.
  • Page 34 Attach the Camera Mount The receiver part of the mount attaches to the back of the DeltaSphere-3000 as shown in Figure 24. If you ordered the color option with your DeltaSphere-3000, it will have been attached at the factory. If not, lay the DeltaSphere down on its side (leg-side down). Place the two spacers in the two spaces in the DeltaSphere as show in Figure 24.
  • Page 35 When in the downwar- view, the screw can be removed. Do not let the screw fall onto the rotating mirror as it could scratch the surface. You may want to rotate the mirror down to prevent this. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 36 ‘stop’ on the rotating arm as shown in Figure 27. Place the thumbscrew through the arm and firmly screw in to the camera’s tripod mount. Do not release the camera until you are sure it is firmly attached. Figure 27 Camera attached to bracket’s rotating arm DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 37: Installing The Deltasphere Color Option Software

    The DeltaSphere-3000 Color Option software is embedded in SceneVision software. This software provides camera control, image acquisition, and color-mapping functions. If you purchased the color option at the same time as your DeltaSphere-3000, it is already installed. If not, follow the installation instructions that came with your DeltaSphere-3000 Color Option shipment.

  • Page 38: Scanning Operation With Color

    Note: This focus will work for most situations. You may wish to adjust the focus for very close objects. Lower the tripod 8 inches (and tighten the geared-column locking screw). Mount the camera on the DeltaSphere as described in Section 5.1.2. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 39: Set Color Scanning Controls

    You might need to turn the camera off and on again to make the connection. Click on the Settings button. A camera controls popup window will appear as in Figure 29. In this window you can specify most of the camera settings needed for capturing color – DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 40 Adjust the settings and preview as often as necessary – these images are not saved. Figure 30 Camera Preview window DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 41: Acquire Images

    – perhaps a close-up photo of a part of the scene. These images typically will not be taken from the same viewpoint as the range data. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 42: Color Scanning Controls

    Image Size – There are four image size choices, ranging from 12 Mpixel (4256 x 2848) to 1.3 Mpixel (1440 x 960). We recommend using one of the two middle settings. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 43: Auto Acquire

    Select the Start button to open the Auto Acquire popup window as shown in Figure 31. This displays several parameters. Scan Name – If these pictures correspond to a laser scan you’ve already done, select that name from the list. Otherwise, provide a new name for this series of images. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 44: Manual Acquire

    Once the Manual Acquire tab is selected, as shown in Figure 32, the user is prompted for a file root name as in Auto Acquire. The default is one of the scan names with ‘_man’ appended and DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 45 FUNC button on the camera back. Then press the button below WB until you have the desired setting. You can use the Preview button to test the settings. See the camera manual for additional information about using the camera’s control buttons. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 46: Viewing Tools

    Intensity (i) – the intensity of the laser return (for grey scale data) • Color (RGB) – the color value of the point (for color data) • X, Y, and Z – the coordinates of the point DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 47 Tool Window View Change Log – The change log stores a text description of all changes made to the data and can be used to track all such changes. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 48: Viewing 3D Model Data

    SceneVision-3D includes a high-performance 3D model viewer. Its actual performance will depend on the size of your model and the performance of your PC graphics card. (For recommendations on graphics cards please contact 3rdTech.) Note: For a sample file, double click on clue.wrl in the clue scene tree.
  • Page 49 – which correspond to a subset of the points of the original scan. There are also simple keyboard shortcuts for these 3 view modes – w for wire frame, p for points, and f for fill. Hitting the key toggles the fill mode. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 50 Use Selected Plane button again. You can also move the visible slice by moving the slider at the bottom of the clipping plane window. When the clipping plane window is closed, the clipping planes are no longer active. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 51 This is particularly useful for viewing scenes with a measurement grid as shown in Figure 37. Notice how the walls are square to the floor in the left image (orthographic view) whereas they appear to merge in the distance in the right image (perspective view). DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 52: Viewing Images

    Several items in the View Menu pertain to image data. Data – Select to view or hide the data. This is used to view annotations, like line drawings, without the data. Annotations in this Window – Select to view or hide the annotations. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 53 Tool Window -> Get File Info – Selecting this displays technical information about the file in the active window including its location on the computer, the date it was last modified, its size, and its resolution. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 54: Annotation And Analysis Tools

    The dialog box also has a Properties section that shows the type of annotation, its location, and its size where appropriate and a check box for showing or hiding the annotation. This is handy for removing clutter from a scene without actually deleting any annotations. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 55 For example, if you create a landmark point in clue.wrl like the one shown in Figure 38, it will appear in several other files. Open v1_color.rtpi and im09-1.tif to see the point in the corresponding range and image data. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 56: Select And Move Annotation

    To turn off the length of the line, Ctrl-right click on any part of the line, or on its name in the scene tree, and select Toggle Measure Line Distance Display. (This will toggle the distance DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 57: Outline Tool

    – with and without measurements. You can also move any of the line segment end points (the points you selected) in the same way you moved a landmark point or a measure line endpoint. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 58: Select Region

    If a triangle overlaps the region you outlined, the entire triangle becomes selected. The images in Figure 40 show a region selection, the corresponding triangles (in wire frame view), the selected region and its corresponding triangles. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 59 This will keep the original selection, and add to it. The regions need not be contiguous. Similarly, if you would like to unselect a part of a selection, use Ctrl-Alt (a small ‘-’ sign will appear) and any region you outline will be unselected. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 60: Create Plane

    DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 61 Move Plane Along Normal You can move a plane along its normal (the axis perpendicular to the plane) by a specific distance. Select Move Plane Along Normal from the Draw & Measure menu. A window will DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 62: Perpendicular Line Tool

    It will remain perpendicular and will stay in the plane. If you would like to change the length of the line, select the arrow cursor, hold Ctrl-Alt, and drag the other endpoint of the line. The line will remain perpendicular but will change length. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 63: Intersecting Planes

    You can try this out on the sample data. Note that this room has two different ceiling planes which makes it a little tricky – DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 64 . You must then put them in the right order by moving planes up or down in the list. It doesn’t matter which is first, or whether you list them clockwise or counter-clockwise, just as long as they are in order. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 65: Corner Line Wizard

    If you choose to connect them, you can choose whether to connect the first and last in your list. In our example we will connect them all. You can group the lines this wizard produces in a layer. Layers are groups of annotations and are discussed in section 8.2.3. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 66 Next do the same thing for the leftwall | backceiling and rightwall | backceiling lines. Then connect the endpoints as necessary, renaming the new edges. Finally, delete the extra ceiling edge. The results should look like Figure 47. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 67: Angle Measures

    For example, if several lines connect at the corner of an object and the lines are ‘linked’, moving the endpoint will move all of them and keep them connected. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 68: Additional Functions

    Viewpoints are commonly created to correspond with a person’s location – perhaps to correspond to a person’s eyes 5 ft. above the floor. This kind of viewpoint can be created using the perpendicular line feature described in section 8.1.7. Create a perpendicular line of a DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 69 – but it only rotates about the viewpoint. When a Viewpoint is created, you specify only its location – not its direction. You can change the view frustum’s direction by rotating to the desired view, right clicking on the name of the DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 70: Blood Spatter Tool

    If you then continue to save, it will save the changed data overwriting the existing model data. Note that this does not change the original scan (RTPI) data – only the created model file. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 71 Note: Selecting two drops whose major axes are nearly parallel can make their ‘white lines’ converge well away from the appropriate spot. Care should be taken to choose drops that converge near the same point – and to delete choices that do not. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 72 Note: Though the calculations are standard, there are many different ways we could approach blood spatter analysis. If you have any suggestions about how you would like to see this procedure modified, please contact 3rdTech. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 73: Annotation Layers

    3D model for viewing, annotating, etc. This function works specifically with range data (RTPI files) – with or without color – and with aligned image data. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 74 200,000 triangles. The number your system can handle will depend on its memory, speed, and graphics processor. Note: There are additional functions for creating 3D models from multiple selections and/or multiple files. These are discussed in Section 11. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 75: Processing Data - Range Alignment

    This section will guide you through the steps of range alignment. You may want to work through this with the sample data, or you can read it in preparation for working with your own data. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 76: Create Or Load A Scene

    After you’ve specified your files, the Create Correspondence Point button ( ) is automatically selected. You will now select corresponding points in each window to begin the alignment. Selecting points is similar to creating landmark points – except that you must select them in pairs. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 77 At times, you may wish to exclude a region of data from consideration during the alignment process. For example, a person or object in the scene may have moved from one scan to the next DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 78 If you would like to undo the Apply function and edit the points, go to the Edit menu and choose Align -> Clear Alignment. You can also edit the points and choose Calc and Apply to overwrite the previous alignment. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 79: Aligning More Files

    -> Share Alignment With function solves this problem. Select the aligned rtpi file and the unaligned model created from the rtpi file, and choose this function. The model ‘shares’ the alignment with the rtpi file because it is derived from the same data. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 80: Processing Data - Color Alignment

    Color alignment requires range data (an RTPI file) and associated images that were captured with a calibrated camera. The camera that ships with the DeltaSphere is calibrated – but additional cameras can be calibrated. Please contact 3rdTech for additional information. 10.1 Procedure This section will guide you through the steps of color alignment.
  • Page 81 In color alignment, the points chosen determine mapping. Therefore, produce accurate mappings, correspondence points should be selected very carefully by ‘zooming in’ to the data as necessary. Look for points that are easy to identify – corners or centers of DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 82 If you would like to undo the Apply function and add to or edit the points, go to the Edit menu and choose Align -> Clear Alignment. You can also edit the points and choose Calc and Apply to simply overwrite the previous alignment. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 83 You can undo the application of color by selecting the Revert button in the Color Align toolbar. This reloads the last saved version of the range file. (You must do this before saving the file.) You then can select the DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 84 After selecting New and identifying the range and image files to be aligned, select a correspondence group from the Correspondence Groups folder in the Scene Tree. Then choose Copy Correspondence Points from the Edit -> Align menu. This will copy each point onto the DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 85: Masking In Color Alignment

    Once you’ve selected a region you add that section to the mask – in effect, masking it out – by selecting the Add Sel button. You can add multiple regions to a mask by selecting a new region and again selecting Add Sel. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 86 Once a mask has been created, or after one has been loaded, it can be used when applying color to a range data file. If the Mask button is highlighted, masked regions will not be added to the range data when 4:Color is chosen. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 87: Miscellaneous Color Alignment Features

    Then select the appropriate range file and the image. The program will see that this image is aligned and the Color button will be enabled. You can select Color without picking any correspondence points and without selecting Calc or Apply. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 88: Creating 3D Models

    If no region is selected, the entire file will be used. Note: When the file is created it is displayed but it is not automatically saved. In fact, the window title will include [temp]*. The [temp] indicates that if the DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 89: Create Model From Selected Data

    The models from each of the files will be included in a single, new model. As with the previous function, the model created is temporary and should be saved if you wish to keep it. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 90: Add Selected Data To Model

    If you would like to create simplified models from several files at once, you can select them all in the Scene Tree. You will have the opportunity to name each of them before the computing DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 91: Editing

    SceneVision is not a modeling package. For extensive data editing there are many different packages compatible with DeltaSphere data. Please contact 3rdTech for additional information. 12.1 Model Editing As described in Section 11, models are typically created from multiple scans.

  • Page 92: Inserting High-Resolution Photos

    Earlier in the manual we’ve described the use of the Select Region function. Though this could be used, it is not ideal because it doesn’t select a precise region. You might use it to DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 93: Making A Photo Hotspot

    Once selected, you can delete the data either with the Delete key on the keyboard, or Delete Selected Data from the Edit menu. This action can be undone with the Undo selection in the Edit menu. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 94: Scenevision-3D Viewer

    SceneVision-3D software includes a separate program, the SceneVision-3D Viewer, designed for viewing and presenting SceneVision data on systems where the full version of SceneVision- 3D is unavailable. The SceneVision-3D Viewer requires no installation key and can be installed DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 95: Installation

    Windows Explorer). You might want to create this folder within the data folder for the original scene – but it can be located anywhere. Then, save the new scene file to that folder. You will see the following dialog box. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 96 Select Copy Files. This will create copies of only the files in the edited scene, and organize them in the new folder. 4. The newly created folder can now be copied to a CD or DVD for transfer to a new PC. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 97: Menu Reference

    All Data or Selected Data Only, in all formats except Image. Also choose sub sampling (1 for every data point, ‘n’ for every nth data point, again in all formats except Image. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 98 (including jpg, bmp, tif, and png) Preferences Specifies many parameters for SceneVision-3D Basic Tab Display Units Specify inches, Feet and inches, meters, centimeters or millimeters for all measurements. (Currently all data is stored in inches.) DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 99 This tab shows the default parameters that will appear when the Scan tab is selected in SceneVision. To change the defaults, set the parameters in the SceneVision Scan tab, and then select Set To Current in this tab in Preferences. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 100 Prints the contents of the active window. Recent Scenes Provides list of recently used scene files to open. Exit Exits SceneVision-3D. If the scene, or any file, has changed you will be prompted to save the file. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 101: Edit Menu

    This is used to place high resolution photos into the scene (see Insert High-res Photo and section 12.2). DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 102 Small, Medium and Large refer to the size of the resulting file – Large files will provide the highest resolution and the largest number of triangles. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 103: Select Menu

    X, Y, Z, Range, Azimuth, Elevation or Intensity. You can specify whether the data selected is a new selection or is to be added to, or subtracted from, any current selection. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 104: View Menu

    Provides 6 preset views, along each axis from the positive or negative direction, as well as the last perspective view prior to choosing a preset view and a view from the center point of the model (useful for automatic rotation). DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 105 View Change Log Displays the log of all saved edits made to any of the files in the scene. Scene Tree Visible Displays or hides the Scene Tree. Toolbar Visible Displays or hides the toolbar. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 106: View Menu' For Photo Or Range Data

    Performs ‘histogram equalization’ on the display of the intensity data. This is a standard image processing technique that can enhance visible detail. This does not change the data in any way – but can provide additional information about the data. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 107 Show Messages Displays the program’s message file. Hide Messages Hides the program’s message file. View Change Log Displays the log of all saved edits made to any of the files in the scene. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 108: Draw & Measure Menu

    First select a region in the data. Then select Create 3D Popup from Region. You must save this as a new file if you want to keep it. Create Spatter Annotation Calculates trajectories for blood spatter. This is a multi-step DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 109 Then repeat the trim operation and it should move the correct endpoint. Wall Inersection Wizard Automatically creates the vertical intersection lines between a set of adjacent walls. Data from this function feeds into the Corner Line Wizard. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 110: Window Menu

    About Model Displays information about the model Set Scene/Model Info Select to enter information about the model that will be displayed when the model is opened and when About Model is selected from the Help menu. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 111: Viewing Parameters Toolbar

    VRML models created either with 3D Popup from Region or with the Show Fit step in range alignment. Large numbers can create models with more detail at the cost of more storage space and slower processing. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 112: Troubleshooting

    X, your index finger positive Y, and your middle finger positive Z. For the DeltaSphere-3000, with the origin at the center of the rotating mirror, positive X goes straight forward, positive Y goes straight up, and positive Z goes to the right (parallel to the broad face of the DeltaSphere –...

  • Page 113: Support Information

    A. SceneVision-3D offers this capability. See the SceneVision manual. There are also several commercial software products that will work with data from the DeltaSphere-3000. We have the most experience using PolyWorks/Modeler from InnovMetric (www.innovmetric.com). If you would like information on using PolyWorks/Modeler with the DeltaSphere contact delta- support@3rdtech.com.

  • Page 114: Appendix

    # The minimum angle between a triangle and the laser for it to # be included in generated 3D models model_angle_to_triangle = 12.0 # Largest file size in Mb for a 3D model to load without warnings model_size_warning = 250 DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 115 # combinations of mirror speed and samples per degree are allowed. max_sampling_rate = 45000 # Default samples per degree (5, 6.67, 10, 13.33, 15, 20) samples_per_degree = 13.33 # Default mirror speed, Hz (4, 8, 10, 16, 20) mirror_speed = 8 DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 116 # ISO value # Fuji: 100, 160, 200, 400, 800, 1600 camera_ISO = 200 # White balance (Auto not recommended) # Fuji: Auto, Daylight, Incandescent, Shade, Fluorescent1, # Fluorescent2, Fluorescent3, Custom1, Custom2 camera_WhiteBalance = Incandescent DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 117 # Start a camera settings block camera_block = null1 # Camera model: KODAK_DSC330C, FUJIFILM_FinePixS2Pro camera_type = NULL_Camera # Percent overlap between pictures camera_overlap = 20.00 # Camera/lens field of view. FACTORY SETTING. DO NOT CHANGE. camera_FOV = 54.00 camera_block_end DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 118: Rtpi File Format Version 3.0

    Note: Older versions of RTPI files (versions 1.0 and 2.0) have less header information and may have different data formats. Current DeltaSphere software can read older versions of RTPI files but can only write version 3.0. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 119 Sample density at scan time. # orig_samples_per_degree_el: 13.3333 # curr_samples_per_degree_az: Sample density in current file 13.3333 (may be different from above due to # curr_samples_per_degree_el: decimation) 13.3333 Mirror rotation speed in Hz; affects scan # mirror_speed: 4 accuracy DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 120: C++ Code For Reading And Writing Rtpi Files

    C++ code for reading and writing RTPI files, along with documentation, is included in the rtpi_read_write directory. These compile on Windows systems. 15.4 Changing the IP Address of the DeltaSphere-3000 Occasionally, the default IP address assigned to your DeltaSphere will need to be changed –...
  • Page 121 The DeltaSphere-3000 has an embedded PC running a version of Linux. To change the IP address you will log in to this PC via your network or direct Ethernet connection. IMPORTANT NOTE: Do not run the ‘backup_config’ command until the settings have been tested and are working properly. If you do, you may no longer be able to communicate with the DeltaSphere.
  • Page 122 Edit the file ‘hosts.allow’ (contents shown below) as needed. Match the numbers with the DeltaSphere’s new IP address where 255 appears in the ‘ipv4_netmask’ above (in this example – the first three numbers). # /etc/hosts.allow: list of hosts that are allowed to access the system. DeltaSphere-3000 3D Scene Digitizer 9/23/05...
  • Page 123 10. On a PC networked to the DeltaSphere (it must be able to network to the DeltaSphere with its new IP address and subnet mask), run SceneVision. Try connecting to the DeltaSphere with your new IP address. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 124: Using Dhcp

    /etc/network/ipv4/eth0 to be similar to the eth0.dhcp file in the same directory. Use the same command as listed above to restart your network interface, and test. If it works, follow the above directions for saving the configuration permanently. DeltaSphere-3000 3D Scene Digitizer 9/23/05...

  • Page 125: Scanning Checklist

    We’ve found this to be a short, but invaluable, list of items to check before each scan. Range Scan Warm up the DeltaSphere-3000 for at least 10 minutes before scanning Secure dolly (if being used) Raise geared column on tripod 8” (20.3cm) Lock tripod’s geared column screw...

  • Page 126: Index

    Corner Line Wizard, 64–65 Firewire, 38 quick release, 6 scan wizard, 98 FireWire, 36 range, 16 Wall Intersectiono Wizard, 62– FujiFilm FinePix S2Pro, 32 range alignment, 19, 74 aperture, 37 range data, 16 focus, 37 reference file, 23 DeltaSphere-3000 3D Scene Digitizer 9/23/05...

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