digital camera information - Electronic Circuits Projects Diagrams Free

muhammad108 · 21st August 2004, 09:21 PM

Dear Sirs
I am a university student from shiraz-iran, My course is Electronic.
I am working on a project and need a camera, but I don't know which camera should I use.
please help me ... this camera should have these capabilities.

1: this camera should be able to distinguish colourful dots (especialy black), with minimum
0.2mm in diameter in a white surface.

2: manually setting focuse

3: I want to process it's image with camputer so, the images shouled transfer to computer
immidiately.

4: I want to use this camera to capture images from a raibon convayer which has 60 Cm width
and moves at 10 cm/s speed.

please help me.

ops:

zevon8 · 21st August 2004, 10:32 PM

Hi If I understand your question correctly, and all the numbers are correct, all I know is that it will be a very interesting design. Combining the requirements, you need a camera that will detect an object smaller than a pencil dot on paper, and travelling through the camera's veiwing range in 16 milliseconds.

You will need to be sampling still images - you won't see anything in a video feed.

zachtheterrible · 21st August 2004, 11:48 PM

Umm, maybe you could just use a video camera?? and connect it's video output to the computer, then record the output w/ the computer?? I'd think that a digital camera that can feed 10 frames a second to a computer would be kind of expensive.

**Nigel Goodwin** · 22nd August 2004, 12:53 AM

Quote:

Originally Posted by zachtheterrible

Umm, maybe you could just use a video camera?? and connect it's video output to the computer, then record the output w/ the computer?? I'd think that a digital camera that can feed 10 frames a second to a computer would be kind of expensive.

zevon8 has already pointed out that a video camera wouldn't work at all, each object is only in range for 16mS, a single frame of video takes 20mS (for 625 line PAL) - plus the image is moving all that time so it would just be a blur.

jbeng · 24th August 2004, 02:18 AM

Sounds like you're looking for an industrial vision system. They're used for hi-speed inspection on assembly lines, conveyors, etc. Allen-Bradley makes them, as does Sony, Hitachi, Philips, Panasonic, etc. Problem is they're not at all cheap. Any time you add the word "industrial" to a component or system, expect the price to go thru the roof. Try Googling for industrial cameras, industrial vision systems, industrial imaging or machine vision.
JB

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21st August 2004, 09:21 PM	(permalink)
muhammad108	digital camera information Dear Sirs I am a university student from shiraz-iran, My course is Electronic. I am working on a project and need a camera, but I don't know which camera should I use. please help me ... this camera should have these capabilities. 1: this camera should be able to distinguish colourful dots (especialy black), with minimum 0.2mm in diameter in a white surface. 2: manually setting focuse 3: I want to process it's image with camputer so, the images shouled transfer to computer immidiately. 4: I want to use this camera to capture images from a raibon convayer which has 60 Cm width and moves at 10 cm/s speed. please help me. ops:

21st August 2004, 10:32 PM	(permalink)
zevon8	Hi If I understand your question correctly, and all the numbers are correct, all I know is that it will be a very interesting design. Combining the requirements, you need a camera that will detect an object smaller than a pencil dot on paper, and travelling through the camera's veiwing range in 16 milliseconds. You will need to be sampling still images - you won't see anything in a video feed.

21st August 2004, 11:48 PM	(permalink)
zachtheterrible	Umm, maybe you could just use a video camera?? and connect it's video output to the computer, then record the output w/ the computer?? I'd think that a digital camera that can feed 10 frames a second to a computer would be kind of expensive. __________________ I'm no electronics god, i just talk too much.

24th August 2004, 02:18 AM	(permalink)
jbeng	Sounds like you're looking for an industrial vision system. They're used for hi-speed inspection on assembly lines, conveyors, etc. Allen-Bradley makes them, as does Sony, Hitachi, Philips, Panasonic, etc. Problem is they're not at all cheap. Any time you add the word "industrial" to a component or system, expect the price to go thru the roof. Try Googling for industrial cameras, industrial vision systems, industrial imaging or machine vision. JB __________________ Nothing is impossible for the man who doesn't have to do it himself - Weiler's Law