Message-Id: <199804201849.LAA61030@dns.ccit.arizona.edu> Date: Mon, 20 Apr 1998 13:39:36 -0500 From: "John R. Stokes" <mailto:johnr@JJT.COM> Subject: Re: Digital Camera To: mailto:IMAGELIB@LISTSERV.ARIZONA.EDU
Drs. Udo and Reimar Lenz, designers of the Kontron camera and owners of patients on the micro/macro techniques for capturing very high resolution images using low resolution sensors, designed and built us three cameras this last winter. The cameras can digitize images at about 10,000 x 10,000 pixels resolution. They have the capacity for digitizing images at approximately 15,000 by 15,000 pixels resolution, but the software is not yet available to produce these resolutions. Their email addresses are mailto:udo_lenz@compuserve.com and reimar@lnt.e-technik.tu-muenchen.de.We are extremely pleased with every aspect of the cameras. The problem of capturing image at very high resolution is getting a computer with the capacity to process and write the images to the server in a reasonable length of time. We found the duel Pentinum Pros too slow and opted to use duel Pentinum IIs. In doing so, we sacraficed the image size we can digitize for performance. Since we have not yet had a requirement for capturing images at more than 6,000 pixels in the long dimension, image size is not an issue at this time. We will have the rest of the system in place when PCs with sufficient speed and memory to process and write larger images within a reasonable length of time become availabe.
The primary reason for purchasing these cameras was to build a system that would 1) output raw data at 12 per pixel per channel and give us access to this data, and 2) increase our productivity for reformatting photographic materials. We are just now getting into production, but fully expect to capture images (5,000 pixels in the long dimension) from cut film b/w negatives at 12 bits per pixel per channel, rotate, crop, and adjust the tonal distribution of the captured image, perform a second evaluation to verify the first is best appropriate distribution, process (at 16 bits per pixel per channel), inspect the derivitive images, and write to CD-ROMs the images from approximately 400 negatives per 8-hour day from one system.
John
At 10:32 AM 4/20/98 -0500, you wrote: >This is a multi-part message in MIME format.
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>Alex Jourabchi
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----------------------------------------------------------------------------- John R. Stokes 1610 West Avenue 512-474-6743, Ext.13 JJT Inc. Austin, Texas 78701 Fax: 512-474-6745
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