Vehicle tracking using vision builder

Can anyone help me to track a vehicle using vision builder?

The Object tracking feature allows to track multiple objects.
To do exactly what is shown in the video, where the number of cars is variable, you need to use LabVIEW and Vision Development module to have more control over the creation of the objects. (The limitation with Vision Builder AI is that each object to track is associated with a tracking session, so you have to know up front how many object you need to track, but VBAI can track multiple objects).
The principle that I described should be the same in LabVIEW: somehow detect the new car that comes into the field of view, and at that point learn the object so that it can be tracked. The prerequesite should be that you must know where to detect the car that comes into the field of view. The difficult part of the application is to define the region of interest of the new object you want to track.
The LabVIEW example for object tracking is located here:
C:\Program Files (x86)\National Instruments\LabVIEW 2014\examples\Vision\Tracking\Object Tracking.vi
Christophe

Similar Messages

Need immediate help regarding project about vehicle tracking using LabVIEW

hello everyone
i am doing a project on vehicle tracking using lab view
i have completed the following steps
1)color to grayscale conversion
2)thresholding
3)morphological operations
my problem is that how do i get a bounding box around the vehicle and track the vehicle, also may be get the coordinates and speed ?
also how to stop the bounding box from one frame to appear in the next?
please help soon.
an immediste reply would be of great help to me.
thank you

Thanks for replying
my project is to develop a system using labview which would track a moving vehicle, give the coordinates of that vehicle and if possible the speed.
how do I achieve this? M not quite familiar with labview.
The input to that system should be an Aviva file of general road condition and at the output I should get bounding boxes around the vehicles to track them.
I have my submission in a couple of daysso in a little hurry,
I am attaching a general block diagram that may give you an idea of how i want the system to be and the current vi that i have made.
hope you get a better picture now.
Attachments:
Picture1.png ‏72 KB
1project.vi ‏125 KB

Registration of several reference images in a test image using vision builder

I have downloaded the trial version of vision builder, and I am attempting a test to determine if it's worth buying:
I would like to determine the position and orientation of two reference parts within a set of test images. I am able to load the reference images, obtain the grayscale, perform appropriate filters, determine their global orientation based on some straight lines, and select the desired ROI's that I would like to match up. I am also able to load in a test image, take the grayscale, and filter it. My state diagram has three heads with the three loading steps that converge. This all seems to be great, but how do I find the position and orientation of the reference ROI's within the test image?
I would like to use something like the geometric matching tool, but it only seems to work on using a part of a first image on subsequent images in the same folder. I suppose I could use my reference as the first image in the folder, then loop through the remaining ones, but...
Once I find the position and orientation of the first reference in the test image, I would then like to find the position and orientation of the second reference in the same test image, then report values like relative distances and angles between these found references.
Does this mean I need two folders, with their own reference image and the same set of test images? Would I combine the geometric matching results using some variables or math functions?
What is the best way to perform this image registration in vision builder?

RSFree101,
Thank you for your interest in Vision Builder AI. If I understand what you are trying to do, you are looking to compare the position locations of two separate parts in an image. We have a tool that does this very well. If you use the pattern matching to find both instances of the part, you should be able to determine the distance and angle between them relatively easily. To do this, you will need to find an edge in between the two so that you can justify the angle between them, and then simply use a few Geometry functions to actually find the angle. To record this information, you can simply use a Data Logging step to write your findings to file.
If you are looking for a more complete analysis on how you might be able to do this, you will need the Vision Assistant on your computer (if you do not have it already, you can get it by downloading a free trial of our Vision Development Module). In the Vision Assistant splash screen, click on the Solution Wizard. This pulls up a menu. From there, go to Tutorial » Bracket Inspection. Click Load Solution. If you step through that example, this displays how to do what you are looking to do with the Vision Assistant, but it should be no different at all in Vision Builder AI. Hopefully this helps.
Regards,
Keith M.
Applications Engineer

NI-1744 Smart Cameras go offline using Vision Builder AI and LV2010?

I've run into a perplexing and frustrating problem.
I have a set of 6 NI-1744 smart cameras used to monitor sample motion in an automated system
A central robot moves samples between 6 satellite chambers; there is a camera mounted above the entrance to each of the satellites; the sample carriers are drilled with up to 10 holes encoding their numbers in binary (0-1023). There is also an L-shaped registration mark drilled near the region for the number encoding. Matters are complicated somewhat in that the second generation of carriers has a slightly more complicated registration mark (which includes the simple L of the first generation).
What I would like to accomplish is this:
Most of the time, I just want to be able to see what's under each camera, illuminating from above using a ring light attached to the camera. Call that Inspection A.
I may need to capture an image without the ring light. Call that Inspection B
When a sample transfer is occurring, I need to run a more complicated inspection (Inspection C):
A light is turned on underneath the end of the sample transfer arm (the "fork"), backlighting the region where the hole pattern would be if a carrier is in fact present.
Acquire an image of the fork with the backlight on.
Check to see if the image shows the fork to be empty. If so, return that information and the inspection is complete.
If not, look for the (backlit) registration mark and establish a coordinate system for the holes. Look to see which holes are present, calculate the sample number, return the data and the inspection is complete
If not, look for the 2nd gen registration mark. If it is found, establish the coordinates as in step 4, calculate the number, return the data and complete.
If none of the registration patterns are found, turn on the ring light, capture an image and return it so the operator can intervene and enter the appropriate data.
I have successfully built the inspection, and it appears to work in the Vision Builder configuration interface, or if run from the Vision Builder inspection interface. If I attempt to *use* the inspection, accessing it via the VBAI interface in Labview, one or more of the cameras will hang after one or more inspections and stops responding to LabVIEW. It will take multiple reboots to get it back on line and visible to either VB or Labview.
Originally, I had thought to configure the camera to run inspections continously and select inspection A, B, or C based on a variable I could access using the Labview Shared Variable Engine. Every time I tried that the camera in question would hang. My current sort-of-successful software uses the VBAI functions in LabVIEW to open Inspection A, B, or C on the camera, run that inspection a single time and return the results and inspection image. That still ends up with one or more cameras hanging, especially if I've added the case to handle the more complicated registration mark.
I think I may be running out of memory in the camera. I have occasionally received an out of memory error message when running the inspection in debug (step) mode in the VB configuration interface, at which point the camera will disconnect from the VB interface. When I look at the system monitor tab for a camera in MAX, I can see that it is showing me 11.5M free/124M total memory, and 72.3Mfree/118M total disk space. If I understand those numbers, that means that less than 10% of the memory is free when the inspection starts!
I'm only communicating with the cameras via the ethernet interface. Are there any software components I don't need to have installed on the 1744 (MAX lists about 12 different things installed!) in that case?
Alternatively, it appears there are VBAI functions available that might let me acquire an image and then process it via a local copy of Vision Builder running on the host PC, rather than in the camera. Is that so, and if so, would it be faster than running the inspection in the camera?
I've attached a zipfile with the inspection that appears to stall the camera, and samples of typical images captured of the empty fork and a sample holder.
Kevin Roche
Advisory Engineer/Scientist
Spintronics and Magnetoelectronics group
IBM Research Almaden
Attachments:
Carrier Read Problem.zip ‏657 KB

The good news: thanks to some offline assistance from Brad, my cameras are no longer crashing.
The bad news: my labview VI using VBAI functions still fails for one or more cameras after a while (typically >12 hours of monitoring).
It's very odd: the cameras are still visible online.
I can ping them.
I can connect to them via VBAI, run inspections that way (either in configuration mode or inspection mode), and disconnect successfully.
My calling VI, however insists that it can't connect (usually with a -354700 error from VBAI Connect.vi, occasionally with a -354705).
I am using shift registers in the monitor loop of the main VI so that I can pass the VBAI session reference for each camera back to the subvis that actually load and run the desired inspection once a connection has been made. After an indeterminate time, one or more of those appears to go bad, but if I attempt to reset and connect to the camera again (I did include a control to let me close and reconnect if necessary from the monitor loop), I still get the above errors.
The only way to get them back online within LabVIEW this morning proved to be to stop the main VI and reset all the controls to default, reboot the cameras, and then restart the VI. At that point it was able to connect to all 6 again and has been running happily for over 8 hours.
I set up the persistent sessions using the shift registers because I have observed in the past continually opening and closing resources like that can lead to memory problems. It also dramatically reduced my cycle time when all I want to do is get the latest images from the cameras to under 2 seconds.
Any ideas? Is there some subtlety to disconnecting/reconnecting to the VB in the cameras via Labview that I'm missing?
I am working on a slightly smarter version of the inspection that can be allowed to run continously in a camera and simply return the appropriate result when asked, rather than having to start and stop different inspections as I do now, but that is not ready for deployment yet. It's the symptom of running just fine for X hours and then losing one or more cameras that is baffling me right now.
Kevin Roche
Advisory Engineer/Scientist
Spintronics and Magnetoelectronics group
IBM Research Almaden

Problem with saving picture in Vision Builder

hello
I'm using Vision builder and i'm trying to save picture with Image Logging. And i made ftp server that picture could be save. In folder path I write location where I want that picture save. But problem is, that picture does not saves in that location where I want.
Could anybody help me?
Please
Matjaz
p.s.: I attach a picture that You will see how I made my settings
Attachments:
napaka.jpg ‏4307 KB

rezi wrote:
why is writen 257 "/" is current directory ??
It means that root is current directory.
For setting VBAI as current directory it should be something like
CWD VBAI
250 OK. Current directory is /VBAI
PWD
257 "/VBAI" is your current directory.
Try to remove VBAI from Folder path and leave this setting just empty. Then your images should be written into root directory. Also you have selected option "Log images when inspection status FAIL". May be your status PASS? In this case images will be not logged. Try to change this option to "Log Image".

Vision builder AI engine takes so long to launch .

Hi all i am using Vision builder for my application .
(labview as api)
here i am using multiple Vision builder files .
if i do program like
(lauch - inspect ) together i takes (3000ms)
(launch ) intiall then inspect only means (300 ms)
for singple .vbai file its okay ..
in case of multiple .vbai files. the AI engine launch takes many time .(due to multiple Ai engines).
Help me to use of multiple files at a time . effiently

I remember when AI used to take forever to launch. Now I run in 64-bit, and since AI updates it is reasonably faster at launch. Are you running your iMac in 64-bit? or 32?

Vision Builder AI and multiple cameras/image files

Hi,
We are trying to develop an inspection using Vision Builder for AI with 3 1394 cameras.
We have setup the image output to save all images from the inspection, however it only saves the last image acquired during the inspection.
Is it possible to have Vision Builder save the images from the other 2 cameras?

VBAI only has the ability to save the last image. If you would like to save the other images you will need to port the inspection to LabVIEW, and use Vision to save the other images. The other option is to create inspection scripts for each of the cameras.

使用 Vision Builder AI 讀取 NI-1722 影像

Hello
我有一個視覺檢查的專案，早先是使用 IEEE 1394 camera
配合 Vision Builder AI 3.6 所寫成，最近更換為 NI-1722
Smart camera , 但更換後發現我只能使用 remote target 的模式
去存取 NI-1722 ，於是就將設定移轉至 NI-1722 ，但執行工作時
發現檢查速度非常的慢。
請問有什麼方可以由NI-1722讀取影像，就像原有的 IEEE-1394 或
GigE 的模式，而非 Smart camera remote target 的模式，
並將工作設定於本地的 PC 內執行。
另外我發現了Smart Camera 及 Vision Builder AI
的功能規格上有這一段的描逑，我應該如何設定才可達成
With Vision Builder AI, you can perform the following tasks:
Acquire and process images with any NI frame grabber
NI Compact Vision System, NI Embedded Vision System
NI Smart Cameras as well as GigE Vision, IEEE 1394 cameras
and USB DirectShow cameras
謝謝......

http://forums.ni.com/t5/Machine-Vision/Logging-an-image-on-the-local-drive-using-Vision-Builder-2010...
http://forums.ni.com/t5/Machine-Vision/Save-images-on-NI-Smart-Camera-1742/m-p/1574514
Saving images to disk is discouraged on the smart cameras because of the number of writes to disk that can occur before the disk fails.
所以看起來在PC端把Smart Camera當成GigE相機，這樣的應用是不被建議的。
給您參考一下。

Vision Builder 3.5

I'm using vision builder 3.5 for product inspection. I want to know whether i can open Inspection Interface Screen as default ? And as soon as the screen opens the inspection should be in running mode ? Because the system will be stand alone, only the monitor & CPU will be provided on the line. Is it possible…?

Hey Thanks... i'll try it out & will let you know the result...

How to Coordinate system in vision builder?

Hello,
I'm trying to perform a pattern matching in 8bit images but my image is not always in the same place so I need to stablish coordinates to analize the image, I'm using vision builder 6.1, does anybody have an example of how to stablish coordinates in vision builder?
Thanks in advance,
Ray

Ray-
Unforutunately, Vision Builder does not support coordinate systems. To do Coodinate systems, you will eiter need to port the code to LabVIEW and use the Vision Toolkit, or else upgrade to Vision Builder for Automated Inspection.

Vision Builder for Automated Inspection and communication to external programs

I want to use Vision Builder for Automated Inspection in my application to do the vision tasks. However, the vision task
is only a part of the total application. Like for example, the application starts by reading the input of a barcode scanner.
Based on the value of the barcode, the proper program should be loaded in Vision Builder for AI. I was thinking about
using the .NET environment to build the application and call Vision Builder for AI from out of there. Is this possible? If
not, are there other solutions?
Thanks!
Bert Christiaens

Hi Bert,
Vision Builder includes a Product Selection functionality that allows to automatically change an inspection based on the result of a step. For example, if the interface to the barcode scanner is Serial or TCP, you can use the corresponding step in Vision Builder to read the barcode, and based on the result select the appropriate inspection.
That is if you want to stay within the Vision Builder environment.
If your application is already written in .NET and you need to add Vision to it, then as mentioned in the post above, Vision Builder has a programmatic API that you can call from .NET (example located here:
C:\Program Files (x86)\National Instruments\Vision Builder AI 2011\API Examples\dotNET Examples
The API allows to programmatically load an inspection, run it and get results, close it, etc. From the information you're providing, it seems like it might be the option that is the most appropriate to your application.
Best regards,
Christophe

Create parameters sheet in Vision Builder

I'm using Vision Builder AI (Trial), and I found it very interesting.
But, while you can configure complex vision inspection, it seems you can't
set-up one or more parameters sheets to for the user to change some treshold
or some min/max limit.
I saw this example: http://zone.ni.com/devzone/cda/epd/p/id/1705
but it uses Labview to create the form:
1 - I don't want to pay for the labview license only for some parameters settings
2 - The window is continuosly flickering during the execution,so it is very difficult to resize, move,oeven change someting in it!
So,is there any way to set some parameters sheet to let the user easly change inspection tresholds during the execution?
Thanks,
Simone.
Simone

Hey Simone,
Yes, your explanation does clear things up. I think you can achieve what you are looking for using User Input steps in VBAI 3.0 and you could do this by creating an overlay on a black image. The interface would not be very nice and clean though. The only way to do it without the awkward interface is that I recommend purchasing LabVIEW.
If there are only a few parameters you would like to be able to change, then doing it in VBAI 3.0 would be really simple and very clean. Now to have an entire sheet of parameters would be a little overwhelming. Are you familiar with “User Input”? There are ways to save the data acquired but no way to open the data once it has been saved inside an inspection. I would recommend checking out the User Input step, but remember that without LabVIEW you will not be able to open previously saved settings from a file.
This most recent release of VBAI was huge (we added the state diagram functionality) and we are always looking for ways to improve the software. I really like your suggestion and would love for you to create a product suggestion.
Kind regards,
Jordan
Jordan Randall
National Instruments Italy

How to Add Module to Vision Builder 2.0 using C++ or MathLab

Hi, I am newbie with the NI product and this is the first time that I am using NI..I am now currently using NI Vision Builder AI 2.0 and just wandering if I can insert another module to the program..
I am using C++,VB.Net 2003, and MATHLab..So, Is there anyway that I can actually write my own code and modify the program?
Thanks guys!

I recommend that you post this question to the Machine Vision forum. That forum is monitored by experts in Vision Builder. This forum is monitored by Measurement Studio experts. Unfortunately, we don't yet have direct integration between Measurement Studio and Vision Builder.

How to use the examples in IMAQ Vision Builder?

I tried many times to use the examples brought in IMAQ Vision Builder(or LabView 6i ?) or download the similar examples from website of NI in order to learn some skills(I am really new with it!). But Whenever I click the example I want to run and a new dialog window always opened and ask me to find a VI named ???(??? is like for emample: IMAQ Windraw) and I always failed to find this VI!!! Where are this VI or How to use those emamples??? Thank you advanced!!!
Swedlin
[email protected]

Hello Swedlin,
IMAQ WindDraw is a VI that is included in the IMAQ Vision toolkit (see http://sine.ni.com/apps/we/nioc.vp?lang=US&pc=mn&cid=1305 for ordering information).
If you are tring to run examples that include IMAQ WindDraw (or any other functions that are in IMAQ Vision), a dialog message will prompt you locate the VI manually (because the initial search failed).
- Installing IMAQ Vision for LabVIEW will remove the message, and the examples will run.

VI Problem using LV8.2, Vision Builder for AI 3.0

Dear All,
I have problem that that some vi are missing while I upgrade LV and Vision bullder for AI.
Origional: LV7.1 & Vision bullder for AI 2.0
New: LV8.2, Vision Builder for AI 3.0
I don't konw why the error happen. Please give advice for me.
Thank You
Attachments:
Error.PNG ‏22 KB

Hello HeartShield,
If you double-click on each missing subVI error, you should be taken to a location on the block diagram where a question mark is holding the place of the missing subVI. Right-click on the question mark, select Replace, and then navigate through the palettes until you find the VI. Clicking on the VI in the palette completes the replace operation for that question mark. After repeating this procedure for each missing subVI error, you will need to save your VI.
Best Regards,
T. McCarty

Vehicle tracking using vision builder

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