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Webcam tech advice, please

Does anyone know of a current or recent webcam which outputs 16bit YUV with very good low light capability? (May 2010)

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Opposing goals?

In reply to: Webcam tech advice, please

Let's get this out of the way. "Webcam" for almost all discussions is a cheap thing built for disposable video use.

16 bit video channels are mostly for scientific use like Hubble and research so for that you look at the usual 5 and 6 figure cameras.

Then again you may want to reveal EXACTLY what you are trying to do.

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There's always one

In reply to: Opposing goals?

The webcam is one of four input devices to a large parallel processing array controlling a slow moving system. It samples the inputs spatially and temporally to make decisions based on the black and white component for edges and a coarse reading of colour to eliminate shadows and detect specific areas of interest. Resolution is not critical as it is downscaled and then resconstructed from other inputs. Changing the software is out of the question in terms of cost so it must be 16bit YUV. We will also change the lens, the power feed and the serial data line - but don't you worry about that!

Call it a webcam, a digital camera or anything else you want: I just need to try some low cost CCD or CMOS devices with good low-light capability which output YUV, 16bits down a serial line to replace one that is broken. To describe it EXACTLY would run to 100s of pages - and I'm not going to that level.

So, now we have got that out of the way, can you recommend anything that meets the original specification? or were you just making a point?

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"replace one that is broken. "

In reply to: There's always one

So it is a scientific apparatus. It sounded like it. Tipping my hand here, I was involved in machine vision products and write apps to configure such.

Your spec should be some 100+ pages long since this area has few standards and when it comes to webcams, almost none. Let's look at something I'm about to implement. is the usual camera with open source so you can tweak it to fit. and others like it for use with other microcontrollers.

But I fear the cheap fix is to get with the original designer and replace the failed part with exactly the same thing to avoid all the work changing out the sensor will entail.

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Like hens' teeth

In reply to: "replace one that is broken. "

Thanks. At first glance the sites look useful. I'll get someone to look at them a bit deeper.
btw We were the original designers, but technology becomes obsolete so quickly (especially the low cost, mass market things) that they are like hen's teeth. Even the derivatives are getting are to find - hence a quick trawl of the market.

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16 bit YUV.

In reply to: Like hens' teeth

Since we do video processing in our apps (yes I do this) I know that it is a trivial bit of code to take an frame in almost any encoding and encode it to 16 bit YUV

Long ago, Intel had some vision processing libraries to do just that but I didn't go find them today.

So if the developers are still active maybe they can re-write the stuff to use something you can find today?

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