Vision Assistant > Labview ploblem EMERGENCY!

[NuMetal]

nope .. i just want only where the centroid of the object is located so i can send the data for ROBOT to pick it (pick and place)

and about the caliper function it's only for the robot arm width

[muks]

ok then will applying a proper threshold and eliminating the rest of the objects in the image and calculating the centre x,y using particle filter help?

[NuMetal]

now i can located the centroid of the object but

when i sent it for labview it's still show the data in pixel type (it is centimetre when it shows in VA thought)

Message Edited by NuMetal on 12-18-2009 12:17 AM

[muks]

You can calibrate it in labVIEW right?

[NuMetal]

can you teach me How ? my knowledge in using Labview program is so low

i got only the panel like in the picture i attached

[NuMetal]

the only ploblem now is

LabViEW is show where the centroid is located (x,y) in pixel but i want them to show as centimetre

but the caliper function work just fine by giving me the length in centimetre already

[muks]

One simple way of measuring objects is to physically measure it and equate the pixels to it. You can always have some lookup table to map them. Still i am not sure how a single point (x,y) has to be converted to cms.

In breif with respect to what you want to measure the centroid position?

[NuMetal]

my assigned project is to process the picture for where the object is located but the programs can only give me in pixel

but the Robot position input is use x,y,z,u,v position by centimetre or millemetre i'm not so sure, so .. if this can be done my project is almost 80% success

but i 've stucked on this only problem for about 2 months already

ps . tnx for ur help thought

** it's a 6-axis robot arm for pick and place things

[muks]

Again i dont know if my understanding is right.

A robotic hand pick up is not easy to accomplish. There are lot of ground work and calibration that has to be done.

1. You have to first define the area beyond which if the object is placed it will not get picked up. Basically a limit.

2. The back ground if consistent will inturn addup to the result being very relaible.

3. I will strongly suggest calibrating using grid calibration.

4. As said in point 1 when you have efined your area, you have to calibrate the arm with respect to the end points (Bounding box)

5. Now you have a reference from which you can locate and grab the object 

Message Edited by muks on 12-18-2009 04:15 PM

[NuMetal]

i forget to tell u something which is

a scope in my project is only on 2-d dimension so z axis is not count