DT VISION FOUNDRY USUARY MANUAL

DT Vision Foundry
OS: Windows 2000/XP
Rapid Development Inspection Software
DT Vision
Foundry ® 3.7
Rapid Development Software for
Inspection Applications
Now With FDA 21 CFR Part 11
Support, New Color Split Tool,
and Many Enhancements!
Key Features
■ Supports FDA 21 CFR Part 11
Define security levels for users, including names, passwords, and permissions. User events are logged to disk.
■ Rapid program development. Create
robust inspection applications rapidly
using the graphically-based Point &
Click Script tool. Simply configure the
tools you want to use and add them to
your script – no programming required!
■ Flexible and extensible. Add BASIClike code to your script, if you wish,
using the Custom Script tool, or create
custom tools using Microsoft Visual
C++ and the supplied library of
object-oriented API functions.
■ Advanced vision algorithms for highaccuracy inspection. You can use DT
Vision Foundry in environments where
ideal conditions, such as part positioning, lighting, and reflectivity, cannot be
easily controlled or maintained,
reducing cost and increasing accuracy.
■ Powerful tools for image capture, processing, inspection, and analysis.
■ Supports a wide range of imaging
devices. All of Data Translation’s PCI
frame grabber boards are supported.
Figure 1. Use DT Vision Foundry’s Point & Click Script tool to develop applications rapidly.
Simply configure the tools you want to use and add them to your script to create complete,
robust, production-ready inspection applications — all without writing any code!
inspection application – all without
writing any code!
Use DT Vision Foundry’s Point &
Click Script tool to view, modify, and
step through your script. With a couple
of mouse clicks, you can add nested
conditional branching (while, do-while,
if-then, for-next, compound if), error
branching, and variable assignments.
Simply drag and drop the elements of
your script to define the flow of your
application. You can configure the Point
& Click Script tool to run your script
automatically whenever the system starts,
to handle failure conditions, and to provide debugging information. Enhanced
point and scripting in version 3.7 allows
you to save scripts in XML format.
Direct Show-Compatible
FireWire and USB Cameras
RS-232
Serial
Devices
■ Supports Direct Show 8.0-Compatible
FireWire and USB Cameras.
■ Development and run-time versions
available.
MACH I and MACH II
Series Frame Grabbers
Overview
DT Vision Foundry is a rapid development environment for creating highaccuracy inspection applications.
Simply add one or more of the graphical
image acquisition, processing, inspection, and analysis tools that DT Vision
Foundry provides into a "script" to create a complete, robust, production-ready
External
Device
(PLC)
DT351
Digital I/O Board
Figure 2. DT Vision Foundry supports a wide range of imaging devices and peripheral
equipment for a complete machine vision solution.
If you need more flexibility, DT Vision
Foundry provides the Custom Script tool
for adding BASIC-like functions, expressions, loops, and branches to your script.
You can even create your own tools by
calling DT Vision Foundry’s extensive
library of object-oriented API functions
from Microsoft Visual C++.
You can capture images using a wide
range of imaging devices, including:
Capture Images and
Exchange Data
■A
DT Vision Foundry supports the following image formats: binary; 8-bit, 16bit, and 32-bit grayscale; floating-point
grayscale; and true 24-bit color. TWAIN
image formats and 8-, 16-, and 24-bit AVI
files are also supported.
■ Any
Data Translation PCI frame grabber
board, such as the DT3145 Camera Link
board and the DT3162 high-accuracy
variable scan board, and an appropriate
camera for the board.
Direct Show 8.0-compatible FireWire
or USB camera (with uncompressed
data in either 8-bit monochrome or 24bit RGB format). DirectX 9.0 is required
for these cameras. (Note that FireWire
DV devices are not supported.)
To acquire an image from one of these
devices, simply install the board and/or
camera you want to use along with its
software, use DT Vision Foundry’s Device
Manager to configure the board/camera,
and open the Picture tool to acquire the
image.
DT Vision Foundry provides the ability
to control and exchange data with many
other devices and applications using the
Input-Output tools summarized in Table
1. You can also share variable and image
data with DT Measure Foundry and other
applications that use DCOM technology
using DT Vision Foundry’s built-in peerto-peer communication server, called
DTiX.
Table 1. Input-Output Tools for Acquiring Images and Exchanging Data
Tool
Description
Picture Tool
Acquires an image to disk, acquires an image to memory, captures to an AVI file, averages an image, and provides
user selectable date and time-stamps for each captured frame.
AVI Player
Plays AVI video clips, and allows you to single-step, pause, and save individual images for further image processing
and analysis.
TWAIN Tool
Imports TWAIN format image files from scanners, digital cameras, and many other TWAIN-compatible devices.
Digital I/O Tool
Export Tool
Import Tool
Serial I/O Tool
File Manager Tool
Reads digital input data and/or writes digital output data to supported digital I/O devices that interface to external
peripherals. This tool is useful in applications where you want to interface to industrial controls, such as a
programmable logic controller (PLC), control external Pass/Fail events, or read signals.
Exports variable data and images in real-time from DT Vision Foundry to external applications, such as Visual Basic,
Delphi, and MATLAB.
Imports variable data and images in real-time from external applications, such as Visual Basic, Delphi, and MATLAB,
into DT Vision Foundry.
Sends and receives data through the serial port of your PC.
Opens images from disk in any of 23 popular file formats, and writes images in either Windows BMP or TIFF
file formats.
Process Images
Once you have acquired an image, you
can use the imaging processing tools summarized in Table 2 to modify the entire
image or portions of the image, called
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Data Translation, Inc.
Regions of Interest (ROIs), for more accurate measurements. DT Vision Foundry
supports eight types of ROIs: point, rectangle, ellipse, straight line, polyline, freehand line, poly-freehand line, and freehand. ROIs are dynamically allocated and
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UK 1256 3333 30
can be repositioned based on coordinate
data provided from other tools. You can
use an unlimited number of ROIs in an
image and "attach" them to images for
faster processing.
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DT Vision Foundry
OS: Windows 2000/XP
Rapid Development Inspection Software
Table 2. Image Processing Tools for Modifying Images
Tool
Arithmetic Tool
Filter Tool
ed!
Enhanc
Image
Modifier Tool
Polar Unwrap Tool
MorphologyTool
Threshold Tool
Pixel Change Tool
Description
Adds, subtracts, multiplies, divides, ANDs, ORs, XORs, or copies two input images.
Applies a filtering algorithm (convolution) to an input image. A number of popular filters are supplied for different
purposes. For example, you can use the supplied Mean filter to smooth an image or a Sobel filter to find an edge in an
image. You can also create your own filters by adding single or dual kernels from 1 x 1 to 7 x 7.
Crops, rotates, flips, or scales an input image. New in version 3.7, fast crop mode is available.
Converts a circular object in a image (in polar coordinates) into a linear object (in rectangular coordinates). This is
useful for straightening curved text in OCR applications or for solving polar-based imaging problems using rectilinear
tools.
Performs binary morphology operations on a binary image. Supported morphological operations include removing
pixels from a foreground object (erosion), adding pixels to a foreground object (dilation), performing an erosion
operation followed by a dilation (opening), performing a dilation operation followed by an erosion (closing),
finding the line replica of a particle (skeletonization), and separating touching particles (watershed).
Creates a binary image from a monochrome, RGB, or HSL image. This tool supports true color thresholding for visual
ization purposes, multiple region thresholding with histogram support for determining the appropriate threshold for each
color plane or setting, and automatic thresholding for determining the threshold values automatically based on the
contrast values of the image.
Changes the values of pixels in an image or a transparent overlay.
Color Plane Tool
Allows you to access the color data of a 24-bit color image in RGB (red, green, blue), HSL (hue, saturation, luminance),
or YIQ (luminance, inphase, quadrature) format.
Color Split Tool
For arithmetic operations on separate planes, generates red, green, blue, or YCrCb (intensity, chroma-red, or chromablue) color planes, or images with the results of the following operations: red minus green plane, green minus blue
plane, or blue minus red plane.
New!
Inspect and Analyze Images
Once you have acquired an image or ROI
and modified it, you can classify it by
comparing it to known standards or ana-
lyze it to detect specific patterns or features. DT Vision Foundry’s inspection
and analysis tools, summarized in Tables
3 and 4, use state-of-the-art vision algorithms to ensure high-accuracy results.
This allows you to use DT Vision
Foundry in environments where ideal
conditions, such as part positioning,
lighting, and reflectivity, cannot be easily
controlled or maintained.
Table 3. Image Inspection Tools for Classifying Images
Tool
Search Tool
Match Tool
Image Classifier Tool
Contour Classifier Tool
Description
Uses correlation algorithms to find features, such a pattern or object, within an image, creates new ROIs in the
inspection image to indicate where matches were found, and returns information about the matches, including the
x- and y-coordinates of the feature within the image and the match score.
Compares two input images and reports a score that represents the degree of similarity.
Very quickly compares an image to one that was cataloged previously and returns information about the
classification, such as the name of the training image in the catalog that best matches the feature under test, the
angle of rotation and/or shift in X and Y direction of the feature under test with respect to the training image, and
a score that measures the confidence level of the match.
Compares enclosed shapes (contours) to contours that were cataloged previously and returns information about the
classification, such as the name of the catalog element that best matches the contour under test, the Euler angles that
describe the rotation of each contour, and a score that measures the confidence level of the match. The Contour
Classifier tool is particularly useful in applications that require optical character recognition, sorting planar objects,
positioning objects, or approximating the distance between objects.
Table 4. Image Analysis Tools for Detecting Specific Patterns and Features
Tool
Description
Line Profile Tool
Creates and analyzes the line profiles of images. You can add an unlimited number of line profiles to the same graph,
and add line profiles from multiple images and multiple viewports. This tool supports all three line ROI types (straight,
poly, and freehand) - they can be any thickness for smoothing out noisy images. You can take any derivative you like
and then find edges, sets of edges, peaks, and sets of peaks easily and automatically. The Line Profile tool also allows
you to measure distances along lines with calibrated sub-pixel accuracy.
Creates histograms of images, and allows multiple histograms to be placed on the same graph for easy comparison.
The graphs can be easily customized, sized, zoomed, printed, and more.
Histogram Tool
ed!
Enhanc
Blob
Analysis Tool
Barcode Reader Tool
Data Matrix Reader Tool
ROI Manager Tool
ed!
Enhanc
Gauge Tool
Edge Finder Tool
ed!
Enhanc
ed!
Enhanc
ROI
Shape Fitter Tool
Calibration Tool
Calculates over 70 calibrated measurements and statistics quickly and easily for all blobs (particles). You can
find blobs in a single image, in multiple images, and even in different parts of multiple images. This tool supports
an unlimited number of child blobs. Enhancements in version 3.7 allow you to specify the color of ROIs and to
find blobs within the black pixels or within the white pixels of an image.
Decodes one-dimensional barcodes in an image. This tools supports 128, 3 of 9, 2 of 5, EAN (Version 13), EAN
(Version 8), UPC (Version A), and POSTNET (Postal Numeric Encoding Technique) industry-standard barcode formats.
Decodes ECC200 data matrix symbols in an image. Data matrix symbols are typically used in two-dimensional
barcodes.
Creates and analyzes regions of interest (ROIs). The tool supports point, rectangular, elliptical, straight line, polyline,
freehand line, polyfreehand, and freehand ROIs. You can add similar groups of ROIs that are aligned with one another
quickly and easily. t lines to edges and fitting circles to arcs. The fitted ROIs can also be used by other tools for mea
surements. Enhancements in version 3.7 allow you to specify the color of an ROI, and to shift and ROI to a reference
point you specify.
Measures various parameters, including height, width, roundness, perimeter, min/max distance, perpendicular distance,
line length, color average, and intersection angle, of the image in calibrated units.
Fine-tunes the detection of edges from a binary image, particularly in noisy images and when there are gaps in the
image, and extracts the edges and contours. These edges can be used for performing precise measurements with
the Gauge Tool. Enhancements in version 3.7 allow you to specify the color of an ROI, and to filter closed contours
based on their pixel area.
Fits ROIs to a particular edge or contour found within a binary image by transforming them into the appropriate shape.
This is useful for fitting straight lines to edges and fitting circles to arcs. The fitted ROIs can also be used by other tools
for additional measurements. Enhancements in version 3.7 allow you to specify a reference line ROI that defines the
axis for either an intersection fit, resulting in a point ROI, or an orthogonal line fit, resulting in a line ROI.
Takes four pairs of pixel-to-real-world coordinate points and creates a calibration object that you can use to calibrate
your imaging system. You can have multiple calibration objects in the system at once, allowing you to support a
multiple-camera system. Calibration objects can be renamed and saved/restored to/from disk as needed. The tool
supports sub-pixel measurements. It also supports a Full Projective Transformation so your camera can be located any
where with respect to an object; it does not have to be normal to the plane.
Perform System Operations
DT Vision Foundry allows you to open,
scale, and zoom an unlimited number of
viewing windows (called viewports) for
viewing images and ROIs simultaneously.
To manage these images and viewports,
and to manage other system tasks, such as
adding sound or text to your application,
DT Vision provides the system tools summarized in Table 5.
Table 5. System Tools for Managing System Tasks
Tool
Description
Image Manager
Allows you to easily manage images in memory. You can view a list of images in memory, determine the name and
attributes of each image, view a thumbnail of an image, delete an image, select an image into the active viewport,
create a new image, or rename an image.
Allows you to specify how you would like to view a grayscale image. You can view the same image many different ways
in different viewports simultaneously. You can bring out small hidden details, show images with false coloring, increase
contrast and brightness, invert, step, and more. You can even modify the output look-up table on a pixel-by-pixel basis.
Allows you to set up how your application interacts with your end-user during execution. The Prompt Tool
presents a dialog box allowing your end-user to enter information; your application can then act on the data to
perform specific or multiple operations.
Plays WAV sound files using any standard, configured sound card.
Display Tool
Prompt Tool
Sound Tool
Status Tool
Text Tool
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Allows you to implement a pass/fail warning screen and define warning criteria for use with a Point & Click script.
Password protection is available.
Creates multi-line text that can be edited and positioned in the image. You can specify the background and foreground
color (including transparent), place the text in the image or in its transparent overlay, and specify the size and font
of the text.
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DT Vision Foundry
OS: Windows 2000/XP
Rapid Development Inspection Software
OCR
Presence Verification
Use the Contour Classifier tool, which provides OCR capability, to inspect an object in motion, reading the letters on a
curve.
Use a combination of DT Vision Foundry tools to determine the
coordinates of a point on a cylindrical object.
Measurement
Bar Code Reading
Use the 2D Data Matrix tool to select the size of 2D matrix barcodes, reading them at any angle even if they are damaged.
This tool reports the angle, x-centroid, and y-centroid of each
barcode.
Use the Search tool, which has sub-pixel accuracy, with the
DT3162 to measure the distance from the top of a stopper in a
vial to a point on the vial. This application reads 15 vials per
second.
Figure 3. Typical Inspection and Analysis Applications
Supports FDA 21, CFR Part 11
Regulations
DT Vision Foundry supports FDA 21 CFR
Part 11 regulations by enabling develop-
ers to define security levels for users. You
can establish a database of user names,
and define passwords and permissions
for each user in the database. DT Vision
Foundry then automatically creates a pro-
tected event log file that records when a
user logs in/out, when a script is loaded,
saved, or unloaded, and when a user
views or adds notes to a log file.
Complete Documentation and
Online Help
many powerful functions and features
available in DT Vision Foundry.
DT Vision Foundry comes with a detailed
user's manual and API manual (in PDF
format), as well as context-sensitive
online help for all tools, application commands, and API calls. Step-by-step examples make it easy to learn how to use the
Documentation and Online Help
System Requirements
Hardware
IBM PC compatible with MMX processor (Pentium III or
equivalent recommended)
■ 128 Mbytes RAM (256 Mbytes recommended)
■ 150 MB of free hard disk space
■ SVGA Monitor (800x600 screen resolution or higher
recommended)
■ PCI interface for Frame Grabber board (optional, used
for image capture) or digital I/O
■ CD-ROM drive
■ Sound Card (optional)
■ Serial port (for Pass/Fail measurement data and
image output)
■ Keyboard and mouse
DT Vision Foundry comes with a detailed
user's manual and API manual (in PDF
format), as well as context-sensitive
online help for all tools, application commands, and API calls. Step-by-step examples make it easy to learn how to use the
many powerful functions and features
available in DT Vision Foundry.
Technical Support Services
As you develop your application, support
is available when you need it. Visit our
web site at www.datatranslation.com/
machinevision for application examples,
tutorials, white papers, a searchable
Knowledgebase, links to Data Translation
frame grabber devices, and much more.
Support is also available from your
point of purchase. Telephone support is
free for the first 90 days; you can also
request complimentary support via e-mail
or fax at any time.
To see if DT Vision Foundry is right for
you, send the part you want to inspect to
Data Translation’s Application Group. We
can run tests on the sample part and provide you with a script and a detailed
report of the results. Send us your part for
inspection today!
Ordering Summary
All Data Translation software products are covered by a 90-day
warranty. For pricing information, see current pricelist, visit our
website, or contact your local reseller.
■ SP1400-CD DT Vision Foundry
Development Software
■ SP1402-CD DT Vision Foundry Run-Time
DT Vision Foundry Software Upgrade packages are available. Call for details.
© Copyright 2005 Data Translation, Inc. All rights
reserved. All trademarks are the property of their
respective holders. Prices, availability, and specifications subject to change without notice.
Software
■ Windows 2000/XP Operating System.
■ Microsoft Visual C.++ 6.0 or better (optional, used
for creating custom applications and custom tools)
Frame Grabber Boards (optional)
Locate
■ DT3162 – Variable-scan monochrome frame grabber
Pharmaceutical
■ DT3145 – Camera Link monochrome and RGB
frame grabber
■ DT3152 – Variable-Scan monochrome frame grabber
■ DT3153 – Composite color/S video
frame grabber
■ DT3154 – RGB Color frame grabber
Consumer Goods
Count
■ DT3155 – Monochrome frame grabber
■ DT3157 – 8-bit to 16-bit single and dual
channel RS-422 digital camera interface
■ DT3131 – Single frame grabber; 3 inputs (muxed),
1 active; monochrome, compositecolor/S-video
■ DT3132 – Double frame grabber; 6 inputs (muxed),
2 simultaneously active; monochrome, composite
color/S-video
Automotive
Verify
Product Packaging
■ DT3133 – Triple frame grabber; 9 inputs (muxed), 3
simultaneously active;
monochrome, composite color/S-video
Measure
Electronics
Digital I/O Boards (optional)
■ DT351 – 16 channel (8 input, 8 output) isolated
digital I/O board for PCI
Read
6
Data Translation, Inc.
US and Canada (800) 525-8528, (508) 481-3700
UK 1256 3333 30
Germany (07142) 95 31-0
Internet www.datatranslation.com