This information applies to the HP 3D Structured Light Scanners and HP 3D Scan Software Pro v5.
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HP 3D Scan Software Pro v5 Online Instructions
HP 3D Scanners and the HP 3D Scan Software Pro v5 provide a complete solution for creating precise 360⁰ 3D water-tight models of physical objects. The following information provides instructions for the entire process.
Figure : HP 3D Structured Light Scanner Pro
Set up the HP 3D Scanner hardware
Use the following instructions to set up your HP 3D scanner.
note:Before connecting the projector or camera to your computer, install the software and drivers.
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Set up the tripod according to the manufacturer’s instructions.
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Slide the scanner assembly (base rail with projector and camera) onto the tripod and fasten the thumbscrew on the tripod until the assembly is secure.
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Scanner assembly
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Thumbscrew on tripod
Figure : Attaching the scanner assembly
If you are setting up the scanner to scan with two cameras, see Setting up a second camera. -
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Connect the included power cable to the AC adapter, connect the power cord to an AC outlet, and then connect the AC adapter to the power connector on the rear of the projector.
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Power cord
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AC adapter
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AC adapter cable
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Power connector on projector
Figure : Connecting the projector to power
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Connect the included HDMI cable to the HDMI port on the rear of the projector, and then connect the other end of the cable to an HDMI port on your computer.
note:
By default, the projector source is set to HDMI. However, if you press the source button on top of the projector twice, the source is toggled between VGA and HDMI. For more information, see Using the projector controls.Figure : Connecting the HDMI cable
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Turn the projector on by pressing the Power button on top of the projector.
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Connect the included USB cable to the USB port on the rear of the camera, making sure to tighten the screws on the cable. Then connect the other end of the cable to an USB port on your computer.Figure : Connecting the USB cable between the camera and the computer
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Remove the lens caps from the projector and camera/s.
Set up a second camera
When using two cameras (second camera sold separately), mount a camera on each side of the projector. Both cameras must "see" the projected patterns at the same time. In most cases, both cameras can be set to a similar triangulation angle.
To mount the second camera on the other side of the projector, use the
following procedure.
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Stopper screw
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Thumb screw for camera mount
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Thumb screw for projector
Figure : 3D scanner showing location of stopper and thumbscrews
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Remove the thumbscrew fastening the projector to the base rail, and move the projector towards the center of the base rail. Align the projector with a hole on the base rail. When the projector is in the new position, tighten the thumbscrew.Figure : Loosening the thumbscrew for the projector
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Use the included Allen key to loosen the stopper screw at the end of the base rail where you want to add the camera, and then remove the screw from the rail.Figure : Removing the stopper screw
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Slide the camera mount onto the base rail, position it, and tighten the thumbscrew.Figure : Tightening the thumbscrew for the camera mount
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Replace the stopper screw.Figure : Replacing the stopper screw
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If necessary, use the thumbscrews to adjust both cameras so that they are an equal distance apart from the projector lens, (not the sides of the projector). Then tighten the screws.Figure : Example of two-camera setup
With two cameras, you can use camera rotation angles less than 20°, but not less than 10°. With this setting however, do not use Extended View mode.
Set up the HP 3D Automatic Turntable Pro
With the HP 3D Automatic Turntable Pro, you can easily and quickly achieve an accurate 360⁰ scan.
The turntable automatically rotates an object so you get an all-around scan. The HP 3D Scan Software then fuses the scans to create a complete digitalized model.
Figure : HP 3D Automatic Turntable Pro
Use the following steps to set up the turntable.
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If you are using the turntable for the first time, attach the feet to the bottom of the turntable. If you have already done this, skip to the next step.Figure : Attaching the feet
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Connect the included power cable to the AC adapter, connect the power cord to an AC outlet, and then connect the AC adapter to the power connector on the rear of the turntable.
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Power cord
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AC adapter
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Power connector on turntable
Figure : Connecting the turntable to power
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Connect the included USB cable to the USB port on the rear of the projector. Then connect the other end of the cable to a USB port on your computer.Figure : Connecting the USB cable between the projector and the computer
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Place the turntable in front of the scanner, making sure that it is on a stable surface. The turntable must be horizontal for safe and reliable operation.
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In the HP 3D Scan software, select Connect Turntable. The software initializes the turntable and places a check in the checkbox indicating that the turntable is ready. In addition, the LED indicator light on turntable changes from red to green.Figure : Connecting the turntable
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When the scanner is set up and calibrated and you are ready to scan, place your object on the turntable. When you scan, the software will simultaneously rotate the turntable and scan your object.
Position the camera
Use the information in this section to setup the position and rotation of the camera.
Determine the camera position
The camera can be mounted on either the right or left side of the projector.
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Size of the object or area to be scanned
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Position of the camera (seen from behind)
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Up to 110 mm (4.3 in)
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To the left of the projector
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Between 110 and 350 mm (4.3 and 13.7 in)
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Optional, but better to the left of the projector
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Greater than 350 mm (13.7 in)
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To the right of the projector
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If necessary, mount the camera slide to the other side of the projector. The exact position of the slide (distance from the projector) is set later in the operation. The distance between the camera and the projector optics will be similar to the size of the object or region to be scanned.
Figure : Camera position left of projector for small objects
Figure : Camera position right of projector for large objects
Rotate the camera
To aim the camera at the projection area, use the following steps.
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Loosen the thumbscrew under the camera.Figure : Loosening the thumb screw under the camera
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Use the degree scale on the camera slide to set the rotation angle, then tighten the thumbscrew. Typically, an angle of 22⁰ is used.Figure : Setting the camera angle
For very large objects or objects with deep cavities, you might need a smaller camera angle. Angles less than 20° cause reduced scan quality, introducing more camera noise and other inaccuracies. For flat objects, a very large camera angle, up to 30°, might be beneficial for the highest precision.Two camera scanning: If using two cameras (second camera sold separately), HP recommends using the same angle for each camera for optimal results. Similar angles can be used; however, if the difference in camera angles is too large, the scan is not as precise. You can use an angle smaller than 20⁰, but do not use an angle smaller than 10⁰. If using a smaller angle, do not use Extended View mode in the software.
Set up the projector in the software
Make sure the camera, projector, and the HP 3D Scan USB flash drive are connected to your computer.
Use the following steps to set up the projector in Windows and in the HP 3D Scan software.
Check the projector settings
Press the Menu button to open the projector menu. HP does not recommend changing
the settings. The required settings are as follows:
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Projection Mode: F
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Projection Location: Table
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Auto Keystone: Off
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Manual Keystone: 0
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Focus lever
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Source button or Up button in a menu
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Left button
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Down button
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Right button
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Power button
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Menu button
Figure : Using the projector controls
note:To restore these settings, see the projector manual from the manufacturer.
Set the projector as an Extended Desktop in Windows
Use the following steps to set the projector as an Extended Desktop.
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Right-click in a blank area of the Windows desktop and select Screen resolution or Display Settings, depending on your Windows version.
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The Screen Resolution or Display Settings window displays. In this window, you can separately configure your two displays, the monitor and the projector.
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Select your monitor and select Make this my main display.
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Click the projector (Acer K132) in the Display window. Next to Multiple displays, select Extend these displays. This enables the HP 3D Scan software to project the stripe patterns while the user interface displays on your screen.Verify that the projector resolution is set to its native (recommended) value, which is 1280 x 800 for the Acer K132.Figure : Example of extending the displays (image may vary)
Figure : Example of extending the displays in Windows 10
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Choose the projector and click Advanced settings. In the Monitor tab, make sure the projector is set to its correct native refresh rate, which is 60 Hz for the Acer K132.
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When the settings are correct, the monitor and projector show the same desktop wallpaper, but different contents. You can move your mouse between the monitor and the projector image. Any window can be moved back and forth between the monitor and the projector.If the main HP 3D Scan window is displayed on the projector, click the title bar and drag it onto the monitor.
Perform the initial hardware setup in the HP 3D Scan Software
After successfully connecting all of the devices, use the following steps to select the hardware settings.
Step 1: Select the Setup Type
On the Setup tab, under Setup Type, select HP 3D Structured Light Scanner Pro S2 or S3, depending on your product.
Figure : Selecting the Setup Type
Step 2: Select the projector
Under Projector Setup, select your projector from the list. After the projector is selected, it projects the setup pattern.
Figure : Selecting the Projector Setup
Step 3: Set the working distance
Place the scanner in front of the object to be scanned and aim the projector so that it illuminates the surface. Make sure the entire object is illuminated, but as little as possible of the area around the object.
Figure : Object setup showing projector and camera arrangement
Step 4: Focus the projector
Adjust the projector focus with the focus lever so that the projected stripes are perfectly focused on the object surface.
Step 5: Select the camera
Under Camera Setup, select your camera(s), for example DAVID-CAM-3.1-M. The live image from the camera displays.
Set the mechanical aperture and focus so that you get a picture. Camera focus instructions
If you have two cameras, click one of the preview images in the right pane under Camera Control to display that image in the live preview area in the center of the screen.
Step 6: Check the camera position
If necessary, move the camera slide by loosening the thumbscrew so that the camera is aimed on the projected pattern on the object. Then tighten the thumbscrew.
If the viewing range of the projector and / or camera contains much more than the surface of the object to be scanned, reduce the working distance of the scanner by moving the scanner closer to the object. For the HP 3D Structured Light Scanner S2 and S3, the minimum scan area is around 100 mm by 60 mm (3.9 in by 2.3 in).
Step 7: Set the exposure time
Set the exposure time to the same value as the frame rate of the projector, usually 1/60s; otherwise the camera image will flicker or pulsate when looking at the projection. If this happens, adjust the exposure time.
Figure : Setting the exposure time
Step 8: Focus the camera
Adjust the aperture of the camera with the aperture dial so that you get a bright picture. Look at the camera image in the software and watch the sharpness of the object and the sharpness of the projected black and white stripes. Adjust the camera focus with the focus dial so that the object focus is as sharp as possible.
note:The aperture f-stop can be set between 16 and 1.4. Set the aperture to a lower f-stop in dark conditions and a higher f-stop in bright conditions. The sharpness of the image is lost if the camera aperture is set to an f-stop higher than 16.
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To set the camera aperture, loosen the lens screw closer to the body of the camera (1) and twist the adjustment ring closest to the camera (2). Fasten the screw when the aperture is set.Figure : Adjusting the aperture, then tightening the screws
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To set the camera focus, loosen the lens screw farther from the body of the camera (1) and twist the adjustment ring farther from the camera (2). Fasten the screw when the focus is set.Figure : Adjusting the focus, then tightening the screws
Step 9: Set the projector brightness and camera aperture
Under Projector Control, move the Brightness slider to the maximum setting. Reduce the brightness only if a clean modulation is not possible.
Figure : Setting the Projector Brightness
Adjust the mechanical aperture dial on the camera. The live preview evaluates the brightness as colors. Set the brightness so that the preview shows as few red areas on the object as possible.
Figure : Typical live image with good setup and settings
This more technical view is shown with red curves overlaying the center camera image. Consider only those areas in the camera image that show the regular sine waves. The displayed intensity curves (red) must be sinusoidal and may neither be under saturated nor over saturated, meaning that the red sine curve should not be cropped at the blue lines.
If the curves are strongly flattened in the dark area (bottom or left) without being close to the lower blue lines, the ambient light might be too strong. In this case, darken the room.
note:The aperture dial on the camera has a scale (f-stop from 16 to 1.4). Even for very bright conditions (small objects), do not set the f-stop higher than 16, otherwise you will lose sharpness. If necessary, reduce the Projector Brightness value in the software.
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Figure : Too dark
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Figure : Good aperture setting
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Figure : Too bright
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Open the aperture further
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Well-controlled sine wave (red) almost reaches the blue borders
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Close the aperture some
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Step 10: Fasten the screws
Tighten the screws for the projector, camera, and camera slide, so that nothing moves. Tighten the camera lens dials with the screws.
The scanner is now optimized for your object with the size of the scanning area, working distance, and brightness of the object.
Calibrate the scanner
An advantage of the modular design of the HP 3D scanner is that it can be adjusted to scan a wide range of object sizes. After such adjustment, a calibration, a measurement of the scanner hardware in the software, is required so that the software can obtain precise and undistorted 3D data at the correct scale.
To do this, a 90° pair of glass calibration panels is used as a reference object.
Figure : Calibration panels
Follow the steps below to calibrate the scanner.
Step 1: Set up the calibration panels
Set up the calibration corner using both 90° fixing brackets and the glass calibration panels.
Place one fixing bracket flat on the table and insert the calibration panels in the bracket. Then place the second bracket at the top of the panels. The two brackets hold the panels to exactly 90⁰.
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Calibration corner - 90⁰
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Bottom bracket
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Top bracket
Figure : Calibration panels
note:Set up the calibration panel only on a flat surface.
Step 2: Select the calibration pattern scale
Move the calibration panel assembly so that it is in front of the scanner, at approximately the same
distance as the object or region to be scanned. Set the projector and camera at an angle to the panel,
and set the projected pattern as large as possible.
From the calibration patterns on the panels, choose the calibration pattern that best fits the scanned object. The pattern should be slightly larger than the object or region to be scanned. For objects larger than 200 mm (7.8 in), use the 240 mm pattern on the back of the
calibration panel.
Set the camera so that 15 to 70 calibration markers
are displayed in the camera image.
note:The smallest pattern, 30 mm scale, is not required or suitable for the HP S2/S3 scanners.
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Calibration pattern too small
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Suitable calibration pattern
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Calibration pattern too large
Figure : Choosing the correct pattern scale
note:You can move the scanner assembly and tilt or adjust the tripod, but do not change any of the projector or camera settings. If you move the camera or projector separately or adjust the focus, repeat the calibration process.
Step 3: Move the scanner into position
Remove the object and set up the glass calibration panels and the scanner at the same distance that the object was, so that the projection and camera image are sharp.
Check the following items:
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The camera and projector should not look at too flat an angle at the calibration panels.
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The camera image should show the projected pattern as large as possible.
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The 6 rings and several other points on the calibration pattern must be visible.
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The entire camera image should be filled with 15 to 70 calibration markers.
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The camera should not be able to look aside the glass calibration panels.
To adjust anything, move the scanner and tilt or adjust the tripod. In this step, do not change anything above the red base rail of the scanner.
Figure : Typical setup for calibration
Step 4: Enter the correct scale
Locate the calibration scale on the edge of the selected calibration pattern (30, 60, 120, or 240).
Figure : Example of the calibration scale
Enter the correct scale in the Calibration Scale field in the software.
Figure : Example of entering the Calibration Scale in the software
Step 5: Check the camera image
In the areas where the waves are visible, the red intensity curves must not reach the blue lines. If the object to be scanned is considerably darker than the white glass calibration panels, the sine waves will now be overdriven. Correct this by temporarily reducing the Projector Brightness slider in the software.
Figure : Ideal live camera image for calibration
Step 6: Calibrate
Click Calibrate to calibrate the scanner.
Figure : Calibrating the scanner
During calibration, the software first measures the position, orientation, focal length, and distortion characteristics of the camera. Then a pattern sequence is projected to measure the same optical characteristics of the projector. For color texturing, a white balance is also performed.
After a successful calibration, a checkerboard pattern is projected with the corners falling exactly into the calibration points.
The scanner is now calibrated. This refers to the position and rotation of the camera and projector according to each other, as well as focus and brightness settings. You can move, tilt, and rotate the scanner as a whole, and you can close and restart the HP 3D Scan software without losing the calibration.
You can also change the Projector Brightness to adjust the brightness (red sine curves) to the respective object to be scanned. However, if you rotate or move the camera or projector separately or adjust the focus, (for example for scanning significantly larger or smaller objects), you must repeat the calibration.
Scan an object
The Scanning menu provides functions to setup scan parameters, capture new scans including texture, filtering, exporting, and sending your scans to Shape Fusion.
The following list describes the steps in a basic scanning workflow with various options.
Step 1: Position the scanner
Place the scanner and the object in front of each other, at the same distance as during setup and calibration. With an incorrect working distance, the camera image and projected stripes will be blurred. If necessary, correct the distance between the object and the scanner, but do not change the camera or projector focus. If you change the focus, you must calibrate the scanner again.
note:Before each scan, check that the red sine curves are not cropped or overdriven. (This is relevant only in the areas where the wave pattern is visible). If adjustment is necessary, adjust the Projector Brightness in the software.
Step 2: Select the pattern parameter profile
On the Scanning tab, select the pattern parameter profile from Quality, Default (recommended), or Speed. This setting affects scan quality and scan time.
Figure : Selecting the Pattern Parameter profile
Step 3: Start a scan
On the Scanning tab, click Start to scan your object. Each time you click Start, a new scan is generated. HP 3D Scan projects and records a series of patterns while scanning. This can take between 2 to 4 seconds or longer.
Figure : Starting a scan
Using the mouse, click 3D Scan to change the view from the camera view to the object view. Click the Live Camera button in the top toolbar to return to the live video feed.
Figure : Example of 3D scan with 3D view selected
To assure that multiple scans of the same object can be combined later, they must overlap sufficiently. You usually need about 6 to 8 scans around the object, plus some angular views of the top and bottom. Textures can also help later when aligning multiple scans.
Step 4: Post processing new scans
Modify the parameters of the Scan Result to your requirements. The filtering result displays immediately in the 3D Scan view.
Use Shape Fusion
The Shape Fusion menu provides functions to clean, align, fuse, and merge multiple scans into a single 360° model, then compare scans, and measure distances. The fused object can then be exported to various formats to be used for 3D printing, for example.
Save and load projects
Under Project, use the Save function to save all relevant data such as scans, fusion results, and measurements within a single project file. Load Project discards the current project and loads an existing one into the software.
note:Saving as a Project is the preferred method to save your data. A Project is much faster and easier than using multiple OBJ files.
List of Scans
Individual scans are collected with the Add to List button during scanning. You can also import more scans into the List of Scans, either by dragging and dropping from Explorer, or by using the plus (+) icon below the list.
Make individual scans visible or invisible by clicking the View
icon.
icon.Supported file formats for import and export:
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HP3DSCANMESH
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Proprietary HP 3D Scan file format. All mesh data is saved. This is the default for projects.
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Import / Export
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OBJ
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3D object file format from Wavefront Technologies. Some meta data is lost in export.
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Import / Export
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STL
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Stereo lithography file format. Only geometry is imported and exported.
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Import / Export
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PLY
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Polygon file format. Only geometry is exported.
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Export
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Right-click a scan to display a context menu with various options.
Click Scan Properties (blue I button) on selected scans to get additional information such as triangle count, vertex count, pose, surface area, volume, and more.
Clean the scans
Your scans might contain some surface parts that you want to remove. Use the following procedure.
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Select parts of the surface with the Select Triangles tool.
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You can invert your selection by clicking Invert Selection.
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Click Delete Triangles to remove all selected triangles. Be careful: this cannot be undone.
Align the scans
To see a good overview of your scans, under Alignment, click Arrange 1D or Arrange 2D to arrange all scans side by side.
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Arrange 2D - arrange visible scans 2D
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Arrange 1D - arrange visible scans 1D
Figure : Select Arrange 1D or Arrange 2D
Figure : Single scans before alignment, arbitrarily arranged
HP 3D Scan offers several alignment modes.
Start with Free alignment mode, which allows you to align arbitrarily positioned scans one-on-one. In order for the automatic mode to align two scans successfully, the two scans must have a unique region of overlap in common, which must not be too small.
To start the alignment, click Align Scans 
.
.In 3D view, click the scan to be aligned. Then click the object to which the first scan should be aligned. Repeat the same procedure for the other scans. Always align a new scan to one which was already aligned. Choose pairs with as much overlapping as possible.
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Object to be aligned
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Object to which you are aligning
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Result of aligned objects
Figure : Example of automatic alignment
When all scans are aligned, click Global Fine Registration mode, then click Align Scans.
note:Click Undo to reverse the alignment.
Contact Pair Selection: If automatic alignment finds false solutions, activate Contact Pair Selection. Then you can help the software by clicking on distinctive regions that are to be aligned with each other, such as the tip of the nose. With Contact Pair Selection activated, the mouse pointer has a red circle. The size of this circle defines the size of the contact region. Use the mouse to select the area within the red circle. If you want to define the contact pair points very precisely, zoom in with the mouse before you click. If you want to mark the contact area only roughly, zoom out before clicking.
After a few registration steps, it might be helpful to temporarily group two or more aligned scans. Select two or more scans in the List of Scans by checking the selection boxes of the respective scans. Then right-click and select Combine selected scans. This allows you to group scans and use them as if they were a single scan. To un-group, right-click the entry in the list and select Uncombine scans.
At the end, since most scans have only been aligned with 1 or 2 others, but overlap with more of them, run the Global Fine Registration to fine-align all scans perfectly to all their neighbors.
Figure : Scans after alignment
Fuse the scans
With Fusion, you can combine multiple scans into one 3D model. The scans are merged to form a closed triangle mesh, holes are (optionally) closed, smaller artifacts are removed, and if the scans have textures, a common texture is generated.
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Make all the scans you want to use visible. Invisible scans are not included in the fusion.
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Set a small Resolution value. High values cause very long computing times and higher memory usage.
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Set the Sharpness value. With Sharpness, you can influence how tight the fused surface is fitted to the 3D scan points. (The default value is 1.) Greater values make noise more visible. Negative values smooth your fusion result. Try different settings, depending on the object.
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Click Fuse to start the fusion. This is a computationally intensive process and will take a few seconds to several minutes to complete.
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When fusion is complete, export your fused 3D object into an OBJ, STL, or PLY file by using the Export button.
Figure : Fusion result
A-B Distances
The A-B Distances function allows you to measure distance values between two surface points.
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Under A-B Distances, click Add Distance (+).
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For Point A, click any surface within the 3D window.
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For Point B, click any surface within the 3D window.
Comparison
The Comparison function allows you to measure signed distances between two surfaces.
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Select a scan and set it as the Test Object.
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Select a scan and set it as the Reference Object.
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Enter the desired Tolerance [mm].
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Click Compare.
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Add data tips on the reference scan with Add Reference Marker (+).
Upgrade to HP 3D Scan Software Pro v.5
If you already own an original DAVID 3D Scanner 4 license, you can upgrade to HP 3D Scan Software Pro v5.
note:Upgrading is software/license installation only - no hardware is shipped. You cannot upgrade from a Single PC license to a USB license.
To upgrade your DAVID 4 license to HP 3D Scan Software Pro v5, purchase an upgrade code from a reseller in your country. To locate a reseller, see the HP 3D Scan website.
After you have purchased an upgrade license and have the upgrade code, you can upgrade directly from the software, but you must be online.
Use the following steps to upgrade your license:
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Go to the download URL to download and install the new software version onto the computer.
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When the new software is installed and running, click Help, then click License and Version Info.
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In the License and Version info screen, click Upgrade DAVID 4 to HP 3D Scan Software v5.
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Complete the information in the License Upgrader form, then click Start Upgrade!Figure : License Upgrader - David 4 to HP 3D Scan Software Pro v5
The upgrader automatically connects to HP and registers the upgrade, then stores the new license info on your license USB.
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