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Dear Colleagues,

We thank you very much for the number of replies we have obtained for the level 3 survey.  You must e-mail alexandre.anthonioz@unil.ch and request an individual token because the survey is offered only on an individual basis using a personal token generated from our server.

If you haven't been contacted directly (for example, with a message
similar to what is posted at onin.com), then you have not been issued a
token and you will not be able to access the survey.

If you would like to participate in the study, feel free to drop us a line at alexandre.anthonioz@unil.ch and we will add you to the second round.

Thanking you in advance for your enthusiasm and collaboration.

C. Champod
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Last week
we read the IAI Monthly Update and the Justice For All Act of 2004 relating to fingerprints.

This week
We take a look at the first FBI certified true 1000ppi Live Scan capture station.
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The First FBI Certified true 1000 ppi Live Scan Unit

In order to achieve true and uncompromised 1000 ppi resolution images, a lot of new requirements have had to be fulfilled. The devices for capturing these images have to work according to well proven and widely accepted methods.  The optics must provide an accurate representation of the friction ridge source, including 3rd level detail.  In addition, the live-scan unit should be easy to operate and reasonably priced.  

Many vendors have taken the approach that the same 500 pixel per inch device will be utilized... and the resulting 500ppi image will be re-sampled to 1000ppi.  Although this technically results in a 1000ppi image, it doesn't provide any more true and accurate information than you originally had; the re-sampling process simply adds pixels to the detail captured at the lower resolution. (See Figure 1)  In many respects, I would much rather use a lower resolution 500ppi image to conduct a comparison than to use a re-sampled 1000ppi image and open myself up to having to deal with the re-sampling process in court.  The way to have more detailed images is to capture them at higher resolution, which is what the L SCAN 1000P (by Smiths Heimann) is the first device to do and achieve FBI standards.


Figure 1: comparison of true 1000ppi L SCAN 1000P capture (left) and 500ppi capture re-sampled to 1000ppi (right).

The scanning device itself is small, fast, durable and user-friendly.  It is designed to be used as a desktop, cabinet-integrated, or fully portable system.  The dimensions of the box itself are 14X20X6 and it weighs just 35 pounds.  It has be ability to quickly capture both 1000ppi and 500ppi fingerprint and palm print images.  A palm image with the resolution of 1000 ppi is captured within two seconds, while palm prints at 500 ppi are captured within half a second. Calibration is made simple because the system contains no moving parts, and the unit workspace is protected from water and other contaminants.  The user-friendly nature of the system provides "real-time preview" of the finger or hand on the PC screen, even for palm print capture, and real-time rolled print acquisition and display.  The lack of "line-scanning" prevents the hands and fingers from having to be guided or rolled at a certain speed.



About Smiths Heimann Biometrics GmbH

Smiths Heimann Biometrics GmbH (SHB) is a security technology company that focuses on optoelectronical devices for capturing fingerprints and palm prints.  They are part of the Detection Division of the British Smiths Group that markets high quality security solutions for the detection of explosives, chemical and
biological agents as well as weapons and contraband, using trace detection and x-ray technology.  Currently more than 3.500 Live Scan units from SHB are in operation worldwide.  For more detailed information about Smiths Heimann Biometrics, you can visit their website. (www.shb-jena.com)

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To discuss this Detail, the message board is always open: (http://www.clpex.com/phpBB/viewforum.php?f=2)

More formal latent print discussions are available at onin.com: (http://www.onin.com)

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UPDATES ON CLPEX.com

Updated the Smiley Files with two excellent new faces.

Is anyone having problems logging on to the CLPEX.com message board?  I have had a couple of people mention that they couldn't even view the page, and I wanted to make sure there were no widespread issues.  If you are having trouble, please drop me a note.  Thanks!  kaseywertheim@aol.com

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Until next Monday morning, don't work too hard or too little.

Have a GREAT week!