Data Translation DT3145 Manuale utente

DT3145

UM-19603-B

User’s Manual

Second Edition

June, 2003

Data Translation, Inc.

100 Locke Drive

Marlboro, MA 01752-1192

(508) 481-3700

www.datatranslation.com

Fax: (508) 481-8620

E-mail: [email protected]

may be reproduced, stored in a retrieval system,

or transmitted, in any form by any means,

electronic, mechanical, by photocopying,

recording, or otherwise, without the prior

written permission of Data Translation, Inc.

Information furnished by Data Translation, Inc.

is believed to be accurate and reliable; however,

no responsibility is assumed by Data Translation,

Inc. for its use; nor for any infringements of

patents or other rights of third parties which

may result from its use. No license is granted by

implication or otherwise under any patent rights

of Data Translation, Inc.

Use, duplication, or disclosure by the United

States Government is subject to restrictions as set

forth in subparagraph (c)(1)(ii) of the Rights in

Technical Data and Computer software clause at

48 C.F.R, 252.227-7013, or in subparagraph (c)(2)

of the Commercial computer Software -

Registered Rights clause at 48 C.F.R., 52-227-19 as

applicable. Data Translation, Inc., 100 Locke

Drive, Marlboro, MA 01752.

Data Translationand GLOBAL LABare

registered trademarks, and Imaging OMNI

CD, DT-Active Camera Link Frame Grabber,

and DT Vision Foundryare trademarks of Data

Translation, Inc.

All other brand and product names are

trademarks or registered trademarks of their

respective companies.

Radio and Television Interference

This equipment has been tested and found to comply with CISPR

EN55022 Class A and EN50082-1 (CE) requirements and also with the

limits for a Class A digital device, pursuant to Part 15 of the FCC

Rules. These limits are designed to provide reasonable protection

against harmful interference when the equipment is operated in a

commercial environment. This equipment generates, uses, and can

radiate radio frequency energy and, if not installed and used in

accordance with the instruction manual, may cause harmful

interference to radio communications. Operation of this equipment in

a residential area is likely to cause harmful interference, in which case

the user will be required to correct the interference at his own

expense.

Changes or modifications to this equipment not expressly approved

by Data Translation could void your authority to operate the

equipment under Part 15 of the FCC Rules.

Note: This product was FCC-Certified under test conditions that

included use of shielded cables and connectors between system

components. It is important that you use shielded cables and

connectors to reduce the possibility of causing interference to radio,

television, and other electronic devices.

Canadian Department of Communications Statement

This digital apparatus does not exceed the Class A limits for radio

noise emissions from digital apparatus set out in the Radio

Interference Regulations of the Canadian Department of

Communications.

Le présent appareil numérique n’émet pas de bruits radioélectriques

dépassant les limites applicables aux appareils numériques de la class

A prescrites dans le Règlement sur le brouillage radioélectrique

édicté par le Ministère des Communications du Canada.

Table of Contents

About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

Intended Audience. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii

What You Should Learn from this Manual. . . . . . . . . . . . . . . . . . vii

Conventions Used in this Manual . . . . . . . . . . . . . . . . . . . . . . . . viii

Related Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii

Where to Get Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x

Principles of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Video Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Camera Link Cameras Supported . . . . . . . . . . . . . . . . . . . . . . 4

Data Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Triggers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Area-Scan Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Line-Scan Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Controlling the Acquisition of Lines . . . . . . . . . . . . . 6

Controlling the Acquisition of Lines and Frames . . 7

Look-Up Tables (LUTs). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Acquiring Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Acquisition Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Area-Scan Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Line-Scan Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Acquisition Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Data Transfer and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Displaying Images . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Source Origin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Overlays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Contents

Camera Control Output Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Expose Output Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Integrate Output Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Strobe Output Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

General-Purpose Output Signal . . . . . . . . . . . . . . . . . . . . . . . 20

Digital I/O Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Appendix A: Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 23

Appendix B: Connector Pin Assignments . . . . . . . . . . . . . 27

J2 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

STP15 Connectors and Screw Terminals. . . . . . . . . . . . . . . . . . . . 30

Appendix C: Values for Use with the DT-Active Camera Link

Frame Grabber Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

vii

About this Manual

This manual describes the features of the DT3145 frame grabber

board and provides technical reference information.

Intended Audience

This document is intended for engineers, scientists, technicians, or

others responsible for programming and/or using the DT3145 board

to perform machine vision and/or image analysis operations. It is

assumed that you have some familiarity with imaging principles and

that you are familiar with the operating characteristics of your

camera.

What You Should Learn from this Manual

This manual provides detailed information about the features of the

DT3145 board. It is organized as follows:

•“Principles of Operation,” describes all of the supported features

of the board.

•Appendix A, “Specifications,” lists the specifications of the

board.

•Appendix B, “Connector Pin Assignments,” describes the pin

assignments for the connectors on the DT3145 board and on the

STP15 screw terminal panel.

•Appendix C, “Values for Use with the DT-Active Camera Link

Frame Grabber Control,” lists the supported values for the

DT3145 and the DT-Active Camera Link Frame Grabber

Control.

• An index completes this manual.

About this Manual

viii

Conventions Used in this Manual

The following conventions are used in this manual:

• Notes provide useful information that requires special emphasis,

cautions provide information to help you avoid losing data or

damaging your equipment, and warnings provide information to

help you avoid catastrophic damage to yourself or your

equipment.

• Items that you select or type are shown in bold.

•Courier font is used to represent source code.

Related Information

Refer to the following documents for more information on using the

DT3145 board:

•DT3145 Getting Started Manual (UM-19601). This manual

(GS3145.PDF), included on the Imaging OMNI CD, describes

how to set up, install, and wire signals to the DT3145 board, how

to configure the DT3145 Device Driver, how to verify the

operation of the board, and how to troubleshoot issues with the

DT3145 board should they occur.

•DT-Active Frame Grabber Controls Getting Started Manual

(UM-19336). This manual (DTFG.PDF), included on the Imaging

OMNI CD, describes how to install, set up, and use the DT-Active

Frame Grabber controls (including the DT-Active Camera Link

Frame Grabber control) to develop imaging or machine vision

application programs using MicrosoftVisual Basic or

Microsoft Visual C++.

•GLOBAL LAB Image/2 User’s Manual (UM-17790). This manual

(GLIUM.PDF), included on the Imaging OMNI CD, describes

how to use GLOBAL LAB® Image/2 to create scientific

applications.

About this Manual

•DT Vision Foundry User’s Manual (UM-17755). This manual,

available from Data Translation, describes how to use DT Vision

Foundryto create machine vision applications.

• Camera Link Specification, available from the Automated

Imaging Association (AIA) at http://machinevisiononline.org.

In addition, you may want to read other material in order to gain a

better understanding of image processing concepts, algorithms, and

their applications. The Data Translation Technical Support

Department recommends the following resources for understanding

image processing concepts, processing, and coding:

Baxes, Gregory A. Digital Image Processing, Principles &

Applications. New York: John Wiley & Sons, 1994.

Introduction to image processing and hardware/software

basics.

Benson, K. Blair, and Donald G. Fink. HDTV Advanced TV for the

1990's. New York: McGraw-Hill, 1990. Details high-definition

television concepts.

Castleman, K. R. Digital Image Processing. Englewood Cliffs, NJ:

Prentice-Hall, 1987. Explains major image processing

concepts and mathematical concepts involved in digital

image manipulation.

Gonzalez, Rafael C., and Paul Wintz. Digital Image Processing.

Menlo Park, CA: Addison-Wesley, 1987. Explains major

image processing concepts and mathematical concepts

involved in digital image manipulation, including FFT

processing, filtering operations, geometric functions,

histograms, and linear equalization.

About this Manual

Lindley, Craig. Practical Image Processing in C. Somerset, NJ: John

Wiley & Sons, Inc., 1991. Explains basic image processing

techniques using C, provides many programming examples,

covers TIFF and PICT file formats, and describes how to map

images into VGA memory space.

Luther, Arch C. Digital Video in the PC Environment. New York:

McGraw-Hill, 1991. Explains Digital Video Interactive (DVI)

technology.

Pratt, William K. Digital Image Processing. Somerset, NJ: John

Wiley & Sons, Inc., 1991. Detailed text on image processing,

including morphological processing, feature extraction,

image segmentation, and shape analysis.

Rosenfeld, Azriel, and Avinash C. Kak. Digital Picture Processing.

New York: Academic Press, Inc., 1990. Describes image

processing techniques and concepts.

Russ, John C. Computer-Assisted Microscopy, The Measurement

and Analysis of Images. New York: Plenum Press.

Watkinson, John. The Art of Digital Video. Stoneham, MA: Focal

Press, 1990. Provides an in-depth description of digital video

fundamentals.

Where to Get Help

Should you run into problems installing or using the DT3145 board,

the Data Translation Technical Support Department is available to

provide technical assistance. Refer to the DT3145 Getting Started

Manual for more information. If you are outside the U.S. or Canada,

call your local distributor, whose number is listed in your Data

Translation product handbook, or contact the Data Translation web

site (www.datatranslation.com).

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