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IMAQ TM NI-IMAQ TM for IEEE 1394 Came ras User Manual Image Acquisition Software NI-IMAQ for IEEE 1394 Cameras User Manual Mar ch 2005 370362C-01.
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Conventions The follo wing con v entions are used in this manual: » The » symbol leads you through nested menu items and dial og box options to a final action. The sequence File»Page Setup»Options directs you t o pull down the File menu, select the Page Setup item, and select Options from the last dialog box.
© National Instruments Corporation v NI-I MAQ for IEEE 1394 Cameras User Manual Contents Chapter 1 Introduction to NI-IMA Q for IEEE 1394 Cameras About the NI-IMAQ Software ............ .............. ........... ............... .............. ......
Contents NI-IMAQ for IEEE 1394 Cameras User Manual vi ni.com Chapter 3 Advanced Programming with NI -IMAQ for IEEE 1394 Cameras Camera Attributes ............... .............. ............ .............. ........... .............. ............ ......
Contents © National Instruments Corporation vii NI-I MAQ for IEEE 1394 Cameras User Manual Appendix A Register-Level Programming Appendix B Technical Support and Professional Services Glossary Index.
© National Instruments Corporation 1-1 NI-I MAQ for IEEE 1394 Cameras User Manual 1 Introduction to NI-IMAQ for IEEE 1394 Cameras This chapter describes the NI-IMA Q for IEEE 1394 Cameras software, l.
Chapter 1 Introduction to NI-IMAQ for IE EE 1394 Cameras NI-IMAQ for IEEE 1 394 Cameras User Manual 1-2 ni.com Application Development Environments This release of NI-IMAQ for IEEE 1 394 Cameras support s the following ADEs for Windows 2000/XP: • LabVIEW version 7.
Chapter 1 Introduction to NI-IMAQ for IEEE 1394 Cameras © National Instruments Corporation 1-3 NI-I MAQ for IEEE 1394 Cameras User Manual Figure 1-1. NI-IMAQ for IEEE 1394 Cameras Architecture The ar.
Chapter 1 Introduction to NI-IMAQ for IE EE 1394 Cameras NI-IMAQ for IEEE 1 394 Cameras User Manual 1-4 ni.com information through im port libraries or through fun ction declarations. Y our NI-IMA Q for IEEE 1394 Cameras software contains function prototypes for all routines.
© National Instruments Corporation 2-1 NI-I MAQ for IEEE 1394 Cameras User Manual 2 Basic Acquisition with NI-IMAQ for IEEE 1394 Cameras This chapter contains an overvi ew of the NI-I MAQ for IEEE 1394 Cameras library, a description of the acquisitio n flow of NI-IMAQ for IEEE 1394 Cameras, and generic programming examples.
Chapter 2 Basic Acquisition with NI-IMAQ for IEEE 139 4 Cameras NI-IMAQ for IEEE 1 394 Cameras User Manual 2-2 ni.com Both high-level and low-l evel functions supp ort snap, grab, seq uence, and triggered acquisitions. Using high -lev el functions, you can write programs quickly without havin g to learn the details of the low-leve l API and driver.
Chapter 2 Basic Acquisition with NI-IMAQ fo r IEEE 1394 Cameras © National Instruments Corporation 2-3 NI-I MAQ for IEEE 1394 Cameras User Manual Every camera has an .iid interface f ile and an .icd camera fi le. • Interface f iles—Store information about which physical camera is associated with a camera name.
Chapter 2 Basic Acquisition with NI-IMAQ for IEEE 139 4 Cameras NI-IMAQ for IEEE 1 394 Cameras User Manual 2-4 ni.com file ope ns, and all the user attributes are set in the dri ver . If no camera of the same make and model is present, the Initialize function ret urns an error .
Chapter 2 Basic Acquisition with NI-IMAQ fo r IEEE 1394 Cameras © National Instruments Corporation 2-5 NI-I MAQ for IEEE 1394 Cameras User Manual the camera and enables you to examine the most current buf fer . National Instruments recommends continuous acquisition for real-time acquisition and processing.
Chapter 2 Basic Acquisition with NI-IMAQ for IEEE 139 4 Cameras NI-IMAQ for IEEE 1 394 Cameras User Manual 2-6 ni.com Note Although you can specify an R OI of any size, the NI-IMA Q for IEEE 1394 Cameras software coerces the R OI into one that is mo re compatible for the given camera.
Chapter 2 Basic Acquisition with NI-IMAQ fo r IEEE 1394 Cameras © National Instruments Corporation 2-7 NI-I MAQ for IEEE 1394 Cameras User Manual Overwrite Mode Ideally, a continuous acquisition acqui res and processes every image that is transferred from the camera.
Chapter 2 Basic Acquisition with NI-IMAQ for IEEE 139 4 Cameras NI-IMAQ for IEEE 1 394 Cameras User Manual 2-8 ni.com T able 2 -2 lists common video modes and t heir corresponding im age types after being decoded by NI-IMA Q for IEEE 1394 Cameras. Decoding images requires CPU resources .
Chapter 2 Basic Acquisition with NI-IMAQ fo r IEEE 1394 Cameras © National Instruments Corporation 2-9 NI-I MAQ for IEEE 1394 Cameras User Manual Snap A snap acquires a single image into a user buffer. Figure 2-2 illustrates the typical programming order of a high-level snap acquisi tion.
Chapter 2 Basic Acquisition with NI-IMAQ for IEEE 139 4 Cameras NI-IMAQ for IEEE 1 394 Cameras User Manu al 2-10 ni.com Grab A grab initiates a continuous high-sp eed acquisition of images to one or more internal bu ffers. Figure 2- 3 illu strates the typical programm ing order of a high-level grab acquisition.
Chapter 2 Basic Acquisition with NI-IMAQ fo r IEEE 1394 Cameras © National Instruments Corporation 2-11 NI- IMAQ for IEEE 1394 Cameras User Manual Sequence A sequence acquires a specified number of internal buffers and then stops. Figure 2-4 illustrates the typical programming order of a high-l evel sequence acquisition.
Chapter 2 Basic Acquisition with NI-IMAQ for IEEE 139 4 Cameras NI-IMAQ for IEEE 1 394 Cameras User Manu al 2-12 ni.com Snap The low-level snap examples set up a one-shot, single-image acquisitio n and start the acquisition. The program acquires an image and processes it.
Chapter 2 Basic Acquisition with NI-IMAQ fo r IEEE 1394 Cameras © National Instruments Corporation 2-13 NI- IMAQ for IEEE 1394 Cameras User Manual Grab The low-level grab examples dem onstrate how to perform a g rab acquisition using low-level functi on calls.
Chapter 2 Basic Acquisition with NI-IMAQ for IEEE 139 4 Cameras NI-IMAQ for IEEE 1 394 Cameras User Manu al 2-14 ni.com Sequence The low-level sequence examples dem onstrate how to perform a sequence acquisition using low-level calls. The prog ram sets up a one-shot, multi-image acquisitio n and starts the acquisition.
© National Instruments Corporation 3-1 NI-I MAQ for IEEE 1394 Cameras User Manual 3 Advanced Programming with NI-IMAQ for IEEE 1394 Cameras This chapter contains informatio n about setting camera attributes, broadcasting acquired images to multiple mach ines, using Format 7 to define the size of transfer red images, and triggering .
Chapter 3 Advanced Programming with NI-IMAQ for IEEE 1394 Cameras NI-IMAQ for IEEE 1 394 Cameras User Manual 3-2 ni.com Figure 3-1. One Came ra Broadcasting to Multiple Host Computer s The IEEE 1394 camera broadcasts video data on the IEEE 1394 bus and all the connected host computers recei ve the same image data.
Chapter 3 Advanced Programming with NI-I MAQ for IEEE 1394 Cameras © National Instruments Corporation 3-3 NI-I MAQ for IEEE 1394 Cameras User Manual Next, start the listener(s). On the listening computer , open your camera interface with the 64-bit unique identifi er of the tar get camera, which you can find in the General tab in MAX.
Chapter 3 Advanced Programming with NI-IMAQ for IEEE 1394 Cameras NI-IMAQ for IEEE 1 394 Cameras User Manual 3-4 ni.com Figure 3-2. Partial Image Size Format (Format 7) T rigger Modes The IIDC 1.31 specification provides several external tri ggering modes for IEEE 1394 cameras.
Chapter 3 Advanced Programming with NI-I MAQ for IEEE 1394 Cameras © National Instruments Corporation 3-5 NI-I MAQ for IEEE 1394 Cameras User Manual T rigger Mode 0 With trigger mode 0, the camera starts frame integration when the external trigger input changes to an active value.
Chapter 3 Advanced Programming with NI-IMAQ for IEEE 1394 Cameras NI-IMAQ for IEEE 1 394 Cameras User Manual 3-6 ni.com T rigger Mode 2 With trigger mode 2, the camera starts frame integration when the external trigger input changes to an active va lue.
Chapter 3 Advanced Programming with NI-I MAQ for IEEE 1394 Cameras © National Instruments Corporation 3-7 NI-I MAQ for IEEE 1394 Cameras User Manual T rigger Mode 4 With trigger mode 4, the camera starts frame integration when the external trigger input changes to an active va lue.
© National Instruments Corporation 4-1 NI-I MAQ for IEEE 1394 Cameras User Manual 4 Using NI-IMAQ for IEEE 1394 Cameras in LabVIEW This chapter describes how to use NI-IMAQ for IEEE 1394 Cameras VIs in LabVIEW.
Chapter 4 Using NI-IMA Q for IEEE 1394 Cameras in La bVIEW NI-IMAQ for IEEE 1 394 Cameras User Manual 4-2 ni.com Location of the NI-IMAQ for IEEE 1394 Cameras VIs You can find the NI-IMAQ for IEEE 1394 Cameras VIs in the LabVIEW Functions palette. From the LabVIEW block diagram, select NI Measurements»Vision»IMAQ IEEE-1394 .
Chapter 4 Using NI-IMA Q for IEEE 13 94 Cameras in La bVIEW © National Instruments Corporation 4-3 NI-I MAQ for IEEE 1394 Cameras User Manual Image Buffer Many acquisition VIs require an imag e buffer to receive the captured image. You can create this image buff er with IMAQ Create.
Chapter 4 Using NI-IMA Q for IEEE 1394 Cameras in La bVIEW NI-IMAQ for IEEE 1 394 Cameras User Manual 4-4 ni.com 4. Call IMA Q1394 Get Image to obtain a copy of the requested image data. 5. After an acquisition, call IMA Q1394 Stop Acquisition to stop transferring data from the camera.
Chapter 4 Using NI-IMA Q for IEEE 13 94 Cameras in La bVIEW © National Instruments Corporation 4-5 NI-I MAQ for IEEE 1394 Cameras User Manual IMA Q D ispose, shown in Figure 4-2, frees the memory allocated for the image buf fer . Call this VI only after the image is no longer required fo r processing.
Chapter 4 Using NI-IMA Q for IEEE 1394 Cameras in La bVIEW NI-IMAQ for IEEE 1 394 Cameras User Manual 4-6 ni.com Figure 4-4. Acquiring Images Using Grab Sequence Use the IMAQ1394 Sequence VI for sequence applications. IMAQ1394 Sequence starts, acquires, and releases a sequence acquisition.
Chapter 4 Using NI-IMA Q for IEEE 13 94 Cameras in La bVIEW © National Instruments Corporation 4-7 NI-I MAQ for IEEE 1394 Cameras User Manual T riggering Often, you may need to link or coordina te a .
Chapter 4 Using NI-IMA Q for IEEE 1394 Cameras in La bVIEW NI-IMAQ for IEEE 1 394 Cameras User Manual 4-8 ni.com Figure 4-7. Displayi ng an Image Using an Image Control If you hav e IMA Q V ision fo r LabVIEW , you can display an im age in an external windo w using IMA Q WindDraw , located at Vision» Vision Utilities»External Display .
Chapter 4 Using NI-IMA Q for IEEE 13 94 Cameras in La bVIEW © National Instruments Corporation 4-9 NI-I MAQ for IEEE 1394 Cameras User Manual Camera Attributes To modify camera attributes in La bVIEW, use the IMAQ1394 Property Node. Every camera attribute has th ree parameters: Attribute Key, Attribute Mode, and Attribute Value.
Chapter 4 Using NI-IMA Q for IEEE 1394 Cameras in La bVIEW NI-IMAQ for IEEE 1 394 Cameras User Manu al 4-10 ni.com Figure 4-11. Error Clusters Y ou can use the Simple Error Handler VI, located on the Functions» Time&Di alog palette, to check for errors th at occur while executing a VI.
© National Instruments Corporation 5-1 NI-I MAQ for IEEE 1394 Cameras User Manual 5 Using NI-IMAQ for IEEE 1394 Cameras in C and .NET This chapter briefly describes how to use NI-IMAQ for IEEE 1394 Cameras function in Microsoft Vi sual C and Microsoft V isual Studio .
Chapter 5 U sing NI-IMAQ for IEEE 1394 Cameras in C and .N ET NI-IMAQ for IEEE 1 394 Cameras User Manual 5-2 ni.com include files under the include subdirectory . The import l ibraries for Microsoft V isual C++ are located under the libmsvc subdirectory .
Chapter 5 Using NI-IMAQ for IE EE 1394 Cameras in C and .NET © National Instruments Corporation 5-3 NI-I MAQ for IEEE 1394 Cameras User Manual If you need to display acquired images , you also must add an IMA Q V ision V iewer control to your toolbox and to your form.
© National Instruments Corporation A-1 NI-I MAQ for IEEE 1394 Cameras User Manual A Register -Level Programming This appendix explains ho w to access an d program re gister locations using the NI-IMA Q for IEEE 1394 Cameras so ftware, and discusses the ca veats in v olved in programming registers.
Appendix A Register- Level Programming NI-IMAQ for IEEE 1394 Cameras User Manual A-2 ni.com Figure A-1. Explanation of Split T ransactions NI-IMA Q for IEEE 1394 Cameras 2.0 su pports the 1394 T rade Associa tion IIDC 1.31 register specif ication fo r industrial cameras.
Appendix A Regist er -Level Progr amming © National Instruments Corporation A-3 NI-I MAQ for IEEE 1394 Cameras User Manual • Read Quadlet Block—Reads an arra y of quadlets from a specified memory.
Appendix A Register- Level Programming NI-IMAQ for IEEE 1394 Cameras User Manual A-4 ni.com register (0x480). Add the specified of fset to the base register—0xF0F00000 for most IEEE 1394 cameras. 0xF0F00000 + 0x480 = 0xF0F00480 Read the v alue into storage.
Appendix A Regist er -Level Progr amming © National Instruments Corporation A-5 NI-I MAQ for IEEE 1394 Cameras User Manual Quadlet Array Many IEEE 1394 cameras allo w re gister-le v el access to more than 32 bits of data per communicatio n request.
© National Instruments Corporation B-1 NI-I MAQ for IEEE 1394 Cameras User Manual B T echnical Support and Professional Ser vices Visit the following sections of the National Instruments Web site at ni.com for technical support an d professional services: • Support —Online technical support resources at ni.
© National Instruments Corporation G-1 NI-I MAQ for IEEE 1394 Cameras User Manual Glossar y A acquisition windo w The image size specif ic to a video standard or camera resolution. address V alue that identif ies a specif ic lo cation (or series of locations) in memory .
Glossary NI-IMAQ for IEEE 1 394 Cameras User Manual G-2 ni.com DLL Dynamic Link Library—A so ftware module in Microsoft W indo ws containing ex ecutable code and data that can be called or used by W.
Glossary © National Instruments Corporation G-3 NI-I MAQ for IEEE 1394 Cameras User Manual hue Represents the dominant color of a pixel. The hue function is a continuou s function that covers all the possible colors generated using the R, G, and B color spectrum.
Glossary NI-IMAQ for IEEE 1 394 Cameras User Manual G-4 ni.com P page-locked bu f fer Memory page that is marked as non-pagable by the virtual file system. Page-locked buffers remain in physical mem ory and do not cause page faults pixel Picture element.
Glossary © National Instruments Corporation G-5 NI-I MAQ for IEEE 1394 Cameras User Manual S sequence Performs an acquisiti on that acquires a specified number of b uf fers, then stops. snap Acquires a single image to a b uf fer . syntax Set of rules to which statements mu st conform in a particul ar programming language.
Glossary NI-IMAQ for IEEE 1 394 Cameras User Manual G-6 ni.com Y YUV A representation of a color image us ed for the coding of NTSC or P AL video signals. The lu ma information is called Y , while the chroma information is represented by two co mponents, U and V representing the coordinates in a color plane.
© National Instruments Corporation I-1 NI-I MAQ for IEEE 1394 Cameras User Manual Index Symbols .NET programming languag e, 1-4, 3 -1, 5-1, 5-2, 5-3 A adv anced programming examples grab using low-le v el functions, 2-13 sequence using low-le v el functions, 2-14 snap using low-le v el functions, 2-12 application development, 1-2 .
Index NI-IMAQ for IEEE 1394 Cameras User Manual I-2 ni.com exa m pl e s advanced programming examples, 2-11 introductory programming examples, 2-8 location of files, 1-4 examples (NI resources), B-1 F.
Index © National Instruments Corporation I-3 NI-I MAQ for IEEE 1394 Cameras User Manual NI-IMA Q for IEEE 1394 Cameras acquisition types grab, 4-5 sequence, 4-6 snap, 4-5 acquisition VIs high-lev el VIs, 4-3 low-le v el VIs, 4-3 architecture, 1-2 libraries, 1-3 O ov erwrite mode, 2-7 P Partial Image Size F ormat.
Index NI-IMAQ for IEEE 1394 Cameras User Manual I-4 ni.com V VI parameters, 4-2 video mode decoding, 2-7 table, 2-8 R OI considerations, 2-5 V isual Basic program ming language, 1-2, 3-1 V isual Studio .NET p rogramming language, 1-2 V isual Studio .NET .
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