Minolta | Scanner Mode | Minolta Scanner Plugin

Raindrop Geomagic, Inc.
Minolta Scanner Plugin
Geomagic Studio and Qualify
Minolta Scanner
Plugin
For Geomagic Studio 6, Qualify 6, and Qualify 7
Copyright © 2004, Raindrop Geomagic, Inc.
The Minolta Vivid 700 and Vivid 910 are non-contact 3D digitizers that scan
an object on or without a turntable. [See Konica Minolta Photo Imaging
U.S.A., Inc. at www.minoltausa.com.] The Vivid 700 and Vivid 910 can be
controlled by Geomagic Studio and Geomagic Qualify.
The purpose of this (or any) scanner plugin is to eliminate the need to import
scan data into Geomagic products. With the plugin, scanned data exists in the
Geomagic Model Manager immediately after the data capture process.
In This Chapter
•
•
For reference information on the controls and indicators of the Minolta
Scanning plug-in, see Controls and Indicators on 3-1.
For a sample scanning procedure, see Minolta Scan -- Step-by-Step.
Controls and Indicators
The controls and indicators on the Minolta Scan dialog (some not available
with the Vivid 700) are divided into three categories: General, Camera, and
Turntable.
General Controls
•
•
•
Name (text field) - is the name assigned to the next scan, in the form
text-degree, where degree is 0 to 360. The degree part increments by the
amount configured at Rotation Step each time the Next button is
pressed.
Scan button - initiates a laser scan named in the Name field. To re-scan
an object from a given angle, press Scan instead of Next.
Next button - function depends on the Scan Mode:
• when Scan Mode is Single, saves the previous scan in the Geomagic
Model Manager,
• when Scan Mode is MultiShot, saves the previous scan in the Geomagic Model Manager, increments the degree part of Name by the
amount configured at Rotation Step, and rotates the turntable by that
amount. When you are ready for the next scan, click Scan.
page 3-1
Raindrop Geomagic, Inc.
•
Minolta Scanner Plugin
Geomagic Studio and Qualify
• when Scan Mode is Continuous, saves the first scan in the Geomagic
Model Manager, increments the degree part of Name by the amount
configured at Rotation Step, rotates the turntable by that amount, initiates another laser scan, and continues according to the description of
continuous scan mode below.
Show Current Scan Only checkbox - specifies whether to show only the
most recent scan in the Studio 6 or Qualify 6 Viewing Area, or a composite of all scans. This is useful in determining the quality of the most recent
scan.
Camera Controls
•
•
•
•
•
•
•
•
•
Fine Scan and Fast Scan radio buttons - specify a slower, higher-resolution scan or a faster, lower resolution scan.
Dynamic Range Expansion Mode checkbox (default On) - specifies
that 3 varying-intensity passes of the laser beam be made at every angle
to improve color detection.
Auto Focus checkbox - Specifies whether the camera uses automatic
focusing. When Auto Focus is turned off, use the Distance control to
focus manually.
Distance thumbwheel (500 to 3000 millimeters; applicable when Auto
Focus is Off) - specifies the distance between the lens and the focal
point.
Auto Intensity checkbox (default On) - specifies that the beam intensity
be selected by software based on reflectivity of the object. When deactivated, set Laser Power by hand.
Laser Power slide bar (simultaneously controls Laser Power in the
range 1 to 100 and Gain in the range 1 to 100; applicable when Auto
Intensity is off) - controls the intensity of the laser beam and the CCD
gain. Higher intensity is suitable for darker colors, lower intensity for
lighter colors. When Laser Power reaches 100, the same slider starts to
control CCD gain. Use CCD gain only when Laser Power of 100 is insufficient because the object reflects light, transmits light, or has low reflectance for red and similar colors.
Variable Distance Mode checkbox (default Off) - specifies whether to
focus at more than one distance to increase the scan quality of “deep”
objects. When enabled, the number of focal points is set by Number of
Scans.
Number of Scans (2 or 3, default 3; applicable when Variable Distance Mode is On) - specifies the number of focal points. Two focal
points means one close point and one far point, the two points being Distance Increment apart. Three focal points means one close point, one
point at the detected center of the object, and one far point, each point
being Distance Increment apart.
Distance Increment (10 to 100 millimeters, default 50; applicable when
Variable Distance Mode is On) - specifies the distance between each of
two or three focal points.
page 3-2
Raindrop Geomagic, Inc.
•
Minolta Scanner Plugin
Geomagic Studio and Qualify
Show Image Window checkbox - specifies whether to display a separate Image Viewer window containing a color image of the object and a
color-encoded range map of the object. The Enable Streaming Video
checkbox on the Image Viewer window specifies whether to update the
image in real time, useful while the operator positions an object in the
scanner’s field of view.
Turntable Controls
•
•
•
•
•
Current Position field (0 to 360) - is an indicator and control of the current position of the turntable with respect to the zero position.
Rotation Step field (1 to 359; default 45; applicable when Scan Mode is
MultiShot or Continuous) - specifies the number of degrees of rotation of
the turntable per click of the Next button.
Scan Mode (Single, Multishot, Continuous):
• Single - This mode can be used to take individual shots, and is the only
mode available when the turntable is disabled.
• MultiShot - causes the turntable to rotate by Rotation Step degrees
and a new scan to take place every time the user presses Next. During
a MultiShot process, click Next to move on to the next scan, or adjust
the parameters and click Scan to re-scan the object at its current position.
• Continuous - is similar to MultiShot mode except that scanning and
rotation are non-stop (without pressing Next) until the Current Position reaches 360 degrees or less (until Rotation Step would cause
Current Position to exceed 360 degrees).
Reset Zero button - defines the current position of the turntable as the
home (zero) position.
Calibrate Axis button - prompts the user to install the axis calibration
“chart” onto the turntable, performs the calibration, and displays the axis
in the Viewing Area.
Configuration Controls
•
Configure button - activates the Minolta Scan Configuration dialog. The
controls there are:
• Vivid Model (900/910 or 700) - specifies the Minolta model in use.
• SCSI Id field - indicates the address of the Minolta device detected at
system boot. Do not modify.
• Turntable type - The choices in the pulldown menu correspond to
Minolta-supported model numbers.
• Turntable COM Port (COM1, 2, 3, or 4) - specifies the serial port to
which the turntable is connected.
• Disable Turntable checkbox - specifies whether to disable the turntable (and the turntable controls and the MultiShot and Continuous Scan
Modes in the Minolta Scan dialog).
• Always Prompt User for Axis Calibration checkbox - specifies
whether Studio/Qualify prompts the user to calibrate the turntable axis
page 3-3
Raindrop Geomagic, Inc.
Minolta Scanner Plugin
Geomagic Studio and Qualify
every time the Minolta Scan plugin is started. Experienced users can
disable the prompt with this option. To perform the calibration, see the
explanation of the Calibrate Axis button.
• Angle (degrees) (0 to 90 degrees; default 75) - specifies the “maximum divergence from perpendicular” of surfaces whose points are to
be captured. A point whose surface normal is more than Angle degrees
away from parallel to the beam direction will be ignored. Example: If
you are scanning a ball at an Angle of 75 degrees, scan data would be
collected from points whose normal is up to 75 degrees away from the
closest point to the camera (for a total of 150 degrees across the face
of the ball).
• Version - indicates the version of this Minolta Scan software plugin for
this Geomagic product.
Data from a Minolta Vivid 700 or 910 scanned directly into a Geomagic product with the Minolta Scan tool is handled as ordered data.
Minolta Scan -- Step-by-Step
This is a typical, simple procedure for performing a scan with the turntable.
1. Click the Minolta icon
, or select Plugins > Minolta Scan on the
Geomagic toolbar.
2. Place the calibration chart on the turntable, click Calibrate Axis, wait for
the center axis to appear in the Viewing Area, and remove the chart from
the turntable.
3. Set the values in the Minolta Scan dialog appropriately. Most notably, set
Scan Mode to Multishot and Rotation Step to 45.
4. Place an object on the turntable.
5. Set the Show Image Window checkbox, and set Enable Streaming
Video on the Image Window, and move the object on the turntable until
the object is well framed in the Image Window.
6. Disable Enable Streaming Video and Show Image Window.
7. Press the Scan button in the dialog. See the first scan in the Viewing
Area.
8. Press Next. The table rotates 45 degrees, a scan is performed, and the
second set of scan data appears in the Viewing Area.
9. Set Show Current Scan Only to see a separation of the first scan and
second scan.
10. Un-set Show Current Scan Only.
11. Perform additional scans at new angles by pressing Next several more
times, allowing time for each scan to complete.
page 3-4
Raindrop Geomagic, Inc.
Minolta Scanner Plugin
Geomagic Studio and Qualify
12. The several scans appear in the Viewing Area to be a single merged
object, but they are not. They are simply a set of scans that occupy the
same position in space.
13. Press OK. Click the Model Manager tab to see that each individual scan
appears as a separate object. To create a single merged object, use
Points > Merge.
page 3-5
Raindrop Geomagic, Inc.
page 3-6
Minolta Scanner Plugin
Geomagic Studio and Qualify
Download PDF