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Re: vision2b post# 4012

Monday, 08/18/2003 12:58:09 AM

Monday, August 18, 2003 12:58:09 AM

Post# of 82595
Vision2B: I'm probably not hitting on all cylinders this week, so I don't follow the reason re: the last paragraph. Is the question abiut the call for more control samples by Doctor Frudakis that Arch passed on? If the database is being finalized with more accurate results, there will be a delay in release. A fine tuning if you will. Better to get it right before release than have to tack on numerous bug fixes.

I have dealt with some electronic imaging issues, and everyone has a little personal bias about image color. Some people even adjust the tv to color levels that I consider to hot. How dare they! When you start dealing with subjective and objective, well let's just say for science repeatibility requires measurement, and if the blue of your eyes is a subjective judgement and you are actually hazel, well the degree of difference must be quantified, and sort of blueish don't cut it. With electronic imaging and breaking up the color reported, you can get 256 values for Red, Green and Blue each. It's a lot of combinations. In order to be scientifically valid, the samples would have to be gathered in very controled circumstance, perhaps with a printed color chart in the collection sample photo to allow for "scattered light" intrusion (from time of day sunlight) or even ageing of the light source of the collection equipment to be accounted for.

I can't speak for DNAP but if more samples are required at this late date, I would believe that the proof of concept has been completed and now the significant final samples are being gathered. This of course can delay the introduction of Retinome, but I would believe that the delay is no more than verifying to the nth degree and with absolute certainty that the control group is acceptable for all purposes, especially in the forensic field. t is quite possible that the completion of samples and correllation would comprise no more than two or three weeks to proof out. Will this extra time in development create a more robust and trusted product? I would think so, or why would they bother.

Hope this is to the point of your highlighting that article.

OT: but I was reminded of an old joke about eye color, "his eyes are blue today because he's a quart short".

Stakddek

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