Where is original point of Z axis in a stereo vision system?

Hello, everyone
I use LabVIEW Stereo Vision module. After I calibrate my stereo vision system, I want to verify the accuracy of my system. I can get every point`s depth in my picture, but where is my original point of Z axis?
In the newest NI Vision Concepts Help, it is written that NI Vision renders 3D information with respect to the left rectified image such that the new optical center will be at (0, 0, Z) position. Is the original point of Z axis is on the CCD of left camera or the optical center of my left camera`s lens?
So anyone can help me ?
CLAD
CAU
Solved!
Go to Solution.
Attachments:
未命名.jpg ‏63 KB

Hello,
I would say that the coordinate system origin is at the optical centre, that is the camera's projection centre.
So, yes, the optical centre of the left camera's lense. This seems most logical to me...
Best regards,
K
https://decibel.ni.com/content/blogs/kl3m3n
"Kudos: Users may give one another Kudos on the forums for posts that they found particularly helpful or insightful."

Similar Messages

How can you globally keep the existing origin points in CS4 files.

Is thre a way to globally keep the existing origin points in CS4 files.
I understand that there are now Global Rulers and Artboard Rulers in Illustrator CS5 -
...but ALL the origin points in our current Illustrator documents (saved in CS4) that we use as templates for new work (last count, over 300!) and in all archived completed work have all moved to the top left of the page. All these documents were saved with different origin points to define non printing objects on the page such as our custom slug line and colour bars. Do we have to open and re-save each document with a new Global origin.

I am in a similar situation, but with thousands of Illustrator files with 0,0 origins placed at the bottom left of objects. Now when I open a legacy document and change to global rulers, the Y axis above 0 are now negative values, they were positive in CS4 and earlier. My X values are correct.
Is there a way to reverse the rulers so I don't have to enter negative values for everything above 0? Or is this a feature request / bug fix that needs a lobby?

Line Chart Problem, multiple point in X axis

I need to create a line chart , with many data points between two points in the X-Axis.
For example,
for month january my reading is 4,3,5,2,8
for month feb my reading is 1,5,3,5,2
I need only two points in X axis, which are january and feb and all the reading should come in gaph.
I am attaching a picture of the graph i required. Can any one help me how should i fill the arraycollection or XML in order to get the graph.

Here is a script which will illustrate how to conditionally display the X-axis label on a line chart:
DROP TABLE tmp_test_data;
CREATE TABLE tmp_test_data
(date_stamp DATE,
value      NUMBER);
BEGIN
dbms_random.seed(1234535678);
FOR i IN 1 .. 233 LOOP
    -- get a random integer between 1 and 100
    INSERT INTO tmp_test_data
     (date_stamp, value)
    VALUES (TRUNC(SYSDATE)-i, dbms_random.VALUE(1,100));
END LOOP;
END;
SELECT NULL link, CASE WHEN MOD(day,7) = 0 THEN day ELSE NULL END label, value
FROM (SELECT date_stamp, value, ROW_NUMBER() OVER (ORDER BY date_stamp) day
         FROM tmp_test_data a
         WHERE date_stamp >= TRUNC(SYSDATE)-90
         ORDER BY date_stamp) b
;There may be a better way to do this. I know this will work.
Mike

Return the user to the original point in the template after making selectio

Hi,
Can u suggest one solution for this problem
Return the user to the original point in the template after making selections/returning back from the select views . While using the select list in middle of the page or some other point of the page, the page will be getting refreshed and it will be returned to the start of the page. My requirement is make it return to the same position after the refreshed page.
Thanks,
Ramky

Hi Vikas,
I have done the same setup as your sample application. I am using
 
Branch URL : 
f?p=&APP_ID.:&APP_PAGE_ID.:&APP_SESSION.::::::#&P1_ANCHOR.
 
Computation for P1_ANCHOR: 
case :REQUEST
WHEN 'P1_A_SCN' THEN 'P1_A_SCN'
ELSE NULL
end
 
Anchor Code in region header for item P1_A_SCN: 
< a name="P1_A_SCN">< /a >
 
When I use the select list it wont come back to the region where the select list P1_A_SCN is located. I checked for the value in P1_ANCHOR in the session state and it correctly shows as 'P1_A_SCN'. But the page URL after the submit does not show the anchor like 
......f?p=206:1:14418154115565883485::::::#P1_A_SCN it shows 
......f?p=206:1:14418154115565883485::::::
 
When I but the branch URL as 
f?p=&APP_ID.:&APP_PAGE_ID.:&APP_SESSION.::::::&P1_ANCHOR. without the '#' it shows the page URL as 
......f?p=206:1:14418154115565883485::::P1_A_SCN
 
Do you what is causing the anchor to not show up in the page URL and thereby the intra page branch to not work.
Thanks,
Swaroop

Flex origin point issue

I have to use Math formula to calculate some positions.
But I don't know in the layoutBase class where is the origin point?
I mean the (0,0) point is at left-top corner or the center of the screen ?

topleft

How to realise a point track application with user-defined original point?

hi,
I am developing a simple point track application, it is not the same as the traditional mouse cursor tracking problem and i get really confused.
there are two pictures to describe my application：
the first one descirbes the default state of my application：
1.red circle is the point that user can move;
2.white cross is the original point;
3.blue circle is the range of red circle motion
the second one describes the track process of my application：
1.user can move the red circle with a click of mouse button in any place within blue circle;
2.application should show coordinates of red circle relative to white circle in real time;
3.once user release the red circle(or the button of mouse), the application should return to its default state.
I realy do not know how to realise the key parts of this application, like showing a circle in panel and connecting the points within it to the labview code? can anybody give me some suggestions? thanks a lot
Attachments:
default state.png ‏10 KB
action state.png ‏12 KB

Attached is a very rough implementation of what you're looking for. Add a "draw (white) line" after the "draw circle" function to make the crosshairs persist when the circle is near the center. Prob want to delete the crosshairs from the blue circle picture (currently contained in a constant) to avoid drawing them twice and them not quite lining up. All of the constants are empirically determined and need slight adjustments (e.g. centering of the red circle when mouse is up, etc.). They will need further adjustment if you resize the blue circle picture.
Not sure what you mean by connecting the points within the LV code. I suspect you're using the eyeball to drive an XY stage or such and need to use the red circle coordinates to moderate the travel speed?
Attachments:
Untitled 1.vi ‏25 KB

I used a third party programme called Mackeeper UGHHH,it moved loads of files to the trash now i do not know where they originally came from or belong!! the put back option is in grey??how can i manually put these files back where they belong?SO upset!!

I used a third party programme called Mackeeper UGHHH SOOO Stupid i know,it moved loads of files to the trash now i do not know where they originally came from or belong!! the put back option is in grey??and will not work even when i highlight one by one!!
how can i manually put these files back where they belong?
i know i should have used time machine but i have not set it up and its too late for that now
i have been researching and racking my brain on how to put these folders and contents of them back to where they once were all of the contents of the folder are still in tact AND i have not emptied my trash,my programmes and some of my apps are not working properly now...i use my computer alot for making music and things are jumbled up now...
is there anyone out there who knows the answer to my prayers on how to go about putting these folders/files back to where they came from to restore functionality to my mac..Yes and thank u if u were going to tell me i HAVE un installed mackeeper...A very sad and upset Mac user!! Cheers Shane

hello there thank u so much for ur reply!! ok i uninstalled mackeeper now and the put back option is still in grey im so confused...i tried restarting my computer like u said and put back still in grey??!! the files that are in my trash are everything from Accounts,address book plug-ins,address book,adobe,aim.........then stuff like apple,Audio,....to caches color pickers,colors,com.apple.TCC,to DVD player to facebook,google to ilifemedia browser to itunes to keychains to movie effects,preferences printers to skype...my Native instruments files BUT not all of them my garage band but not all of it...it seriously looks like my whole library is in the trash i tried to put things back where i THINK they belong and it just added the item or folder under where i thought it went and didnt restore functionality to for instance google chrome and all my book marks are there....they seem to be only certain things from my library that would have added some functionality to apps and programmes like my garageband is missing stuff photobooth wont work so on.......kinda looks a bit like this thats only the half of it!! Cheers shane!!!

N unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

some one can help me please
i have no idea what i must to do.
an unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

The Exception Handler gave all the info that you need. No need to print the whole stack trace.
The exception handler says
Exception Details: java.lang.IllegalArgumentException
TABLE1.NAME
Look in the session bean (assuming that is where your underlying rowset is). Look in the _init() method for statements similar to the following:
personRowSet.setCommand("SELECT * FROM TRAVEL.PERSON");
personRowSet.setTableName("PERSON");
What do you have?

Purchased Direct Access from iTunes. I cannot locate the download and I cannot download it a second time. Any ideas as to where the original download might reside?

Purchased Direct Access from iTunes. I cannot locate the download and I cannot download it a second time. Any ideas as to where the original download might reside?

Hi rogerfrommilwaukee,
Welcome to the Apple Support Community!
Previous purchases can be located in the Purchased section of either your iOS device or in iTunes on a computer. The purchases will be available to re-download as long as they are still available in the App Store and you are using the same Apple ID. Please use the attached article as a reference.
Download past purchases
Cheers,
Joe

X Y origin point in Illustrator

I need the x, y origin point to be in the lower left corner. In the past I was able to go into the Adobe Illustrator setting and change some code so when I double clicked in the left corner of the ruler it would switch my origin to lower left. Now there is nothing in the setting folder because this program is on the cloud. How do I fix the issue now?

In the past Illustrator's x y origin was in the lower left hand corner. In CS6 they changed this to the upper left corner but we were able to change Illustrators setting so we just had to double click in the left upper corner of the ruller and it would set back down to the lower left. Our compnay has templates depending on the setting to be this way. It would be a pain to drag every files x y origin each time. Now since Illustrator is on the cloud the seetings folder no longer exists on our computers to fix this.

I just replaced the hard drive on my g4 PowerBook -I don't know where my original software is and apple won't touch it since its "vintage". Does anyone know what my options are to get my computer working again?

I just replaced the hard drive on my g4 PowerBook -I don't know where my original software is and apple won't touch it since its "vintage". Does anyone know what my options are to get my computer working again?

Hello and welcome to the support community
You only option is to buy a copy of Mac OS X, either the retail disk or system disks.
There are places you can by a copy of Mac OS X, like online vendors, Amazon or eBay.
System disk are gray and come with more than one disk. Retail disk are black with a 'X' on them and often come as one DVD disk.
Not sure what version your going to require as you haven't provided any specification and model details.
I would safely assume being a G4, it would be happy to install Mac OS X 10.4 Tiger.
If you could let us know the PowerBook you own, then I am sure we could advise you further.
Best of luck

HT1657 I cannot play my rented movie because itunes cannot locate where the original file, has anyone face this problem before? Where can I find the location of the downloaded movie?

I cannot play my rented movie because itunes cannot locate where the original file, has anyone face this problem before? Where can I find the location of the downloaded movie?

What did you use to download it with? iPad? iPhone? Computer?
If it's an iPad/iPhone, play it using the videos app.
If on the computer, look on the left side of iTunes in the library under movies.

Flash player won't install on firefox, where do I point and click to get it going

flash player will not install on firefox. What is the EASY remedy?
Where do I point and click? Ver 10 Flash Player will not load.

Priya Rao wrote:
Flash Player is not working in my Firefox browser while my other browser working with it, so what can i do.I am using mostly Firefox.
So please anyone can help me.....?
Thanks
Which version of Flash Player do you have installed, and are you running Windows 7, Windows Vista, Windows XP Pro, Windows XP Home, Linux, Ubuntu, Fedora, or do you have an Apple Mac? If you have an Apple computer, which version of OSX do you have installed? Without this specific information, we cannot assist you very much.
Message was edited by: Xircal

Photoshop Rulers not resetting to origin point.

Hi - I have PS CS5 and adobe says that in order to reset Rulers you need to 'To reset a ruler’s origin to its default value, double-click the upper-left corner of the ruler.'
But when I try that nothing happens. I have tried resetting my workspace as well but still not working. I would really appreciate if someone can help out - thanks.

I have a similar problem. My guides never adjust to the new origin point I set by dragging from the top left corner. The guides just use use document edges as origin points.
I have reset my preference file but this hasn't helped. I'm using Photoshop CS6 on Mac.

Paint brush does not paint where I am pointing.

I am using the new snow lepord 10.6 and CS4. When I go to paint, I place the circle and click but it starts painting about 3/8" lower that where I am pointing, any ideas?
Al

This has nothing to do with SL.
You created a new doc in full screen mode. cycle through full screen mode using the F key. everything will be back to normal.

Where is original point of Z axis in a stereo vision system?

Similar Messages

Maybe you are looking for