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I think it's this:
http://www.dockerty.co.nz/software/dispense.zip
I have downloaded it from madell site, so if it's not, tell me and i search
the downloaded file. It's a software that read in the...

Thanks for the link. I have used the dispenser SW from this guy too.

Ir works, if you have samsung type nozzle and the camera directly over the nozzle, as this special nozzles are ir trasmissive and you have realtime image during travel of the centering from the chip....

First of all, Illumination is the key and preferibly you need two types of illumination, diffused and direkt lightning with at least tree power levels.
Illumination don´t need to be perfect, a lot...

This is an part of code, and different people code differnt.
I have ended up in something like this and i code in C for speed reasons, i´m sure 99% want code it in c++ or c# or java or maybe...

Instead of laser, you could use narrow angle leds. The displayed image sensor have 2x R + 2xG +2xB sensors, thats why i have used RGB leds.
Further the red leds are two in order that i can measure...

The overall rough sketch.
View image: ccd

I have a source for this sensors if you need it. 8Mhz max clock rate.

Kodak Wratten filter, sorry, 3"x3" Size sheet is 80$/75€ + shipping. I have tested NEC µPD8880CY with Leds and i have needed the ND filter.
I have asked a photographer to give me medium size...

The gray level Filter required to not saturate the ccd element , Watten ND 3.0/4.0 cost times more then alternative solutions.

I was asked how to check the ic rotation with this histograms, so i post two image to clearify it.
For the IC, use the two high peaks from the X histogram and combine it with the start and end of...

As no one has respond, even i was absent a long time here, i post the relevant code, two images and one example application. The timing is only indicative, there is a lot of memory
alloc,...

It´s less the problem of sharing the code, the "magic" function inside OpenCV is CVReduce. It´s compute in less then one ms, but the previous needed image filtering/thresholding usually takes 8 ms ....

When you pick up a component, this component can rotate a small amount,
so it must be checked after pick-up.

For nozzle centering, if you have a uplooking camera, then the process can
be automated. Normally you have a small hole with a defined offset to the
uplooking camera. This can be aligned the first...

Realigning a camera to a offset is normally not a problem.
You can use a soft rubber, like plastelline or use a stamp pad,
pencils and color the tip. Gentle go down to a paper or the plastelline...

I have used chromed clothes rail with oval shape. I have found it locally on the hardware
store cut in size to 1mt. The rail cut at 1.8/2mt was more cheaper, but not so straight so
i have used four...

You must set the register 0x40 (config) to the value 33 in order to disable
it.

My current use and understanding is to place the part at top of the solder, example pcb height + 4mil (printed solder mask is 6mil in this example) and then
add pressure to dissolve vacuum and have...

I don´t see any problem. There is a hardcoded limit of 10 cameras that can be adjusted. Why with only tree webcams there should be a problem ?
It´s possible to make a dataset of different stripes...

Hi, i have tested some lightning, it´s really different from using a non standard focal length for the downlooking camera.
The webcam have 6 leds. It works, 12 leds is better because of uniform...

Using a webcam is not difficult, the key is lightning.
You must have a histogram comparable to this, the background color don´t matter. If you don´t have it, you don´t have the right lightning and...

dandumit, you need to reduce light intensity. The vision SW could only detect the black body of the component, nothing more.

This are just off the shelf or little modified demo program from one vision system on Window and the timing is not really the processing timing, but the overall timing, i´m using Linux. The real...

I´m was out for buying a webcam at a chinese store.
I have made pictures of the webcam and the test
setup, but note, the final images used are taked with near double the space
between camera and...

Different Setup needs different Parameter. Currently i use 50/200. Madell as example use optical blur, good camera is not really important as you my expect.
Post a example of you´r image or some...

For Vision, as example this is a example of locating a component.
The yellow points are hand draw for the first image and the sw should check them for
component orientation. With this lines, you...

Vision, it´s depends. Until yet i have used the usual basic algorithm, histogram and rotoation inside a ROI. Time for displacement and rotation detection is under 1-2ms.
Now i´m thinking of...

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Hi, instead of using a toy microscope camera (vga resolution) that need
a small clearance to the board, use a cheap photo camera like me with
possibly super macro setting and one that can be used...

Tell me the programming language you use and i give you a api for it.
If you want, i could make a standalone demo without the camera calibration stuff.
I capture the photo from the webcam, image...