Distortion-free results
Distortion of an image, the so-called fish-eye effect, is limited to the absolute minimum with the GLSCAN. A cleverly placed high-quality lens ensures an image that is distortion-free along both the x and y axes.
The right results quickly
In contrast to traditional photography, in which a lot of effort is spent finding the correct illumination and exposure time, developing film, et cetera, the GLSCAN is very efficient. A shoeprint is scanned in less than 2.5 minutes. The image is automatically saved on the hard disk of the connected computer. If an image processing program is installed, the scanned image will be opened directly in that program for evaluation and adjustment/fine-tuning.
Gellifter | scantime |
9 x 13 cm | 1 min, 10 sec |
13 x 18 cm | 1 min, 45 sec |
13 x 36 cm | 2 min, 25 sec |
18 x 36 cm | 2 min, 25 sec |
Operating
The GLSCAN is operated by a PC running Windows. The command window on the screen is well-organized and simple to operate allowing choice/selection of scan size, illumination, whether vacuum is used during scanning, and the camera sensitivity (gain). Case and item number can be entered for use in the file name of the image (important for archiving). Additional data can be entered, such as place and date/time of obtaining the evidence, which is stored together with the image file (EXIF information in the TIFF format).
Archiving
The images captured by the GLSCAN are automatically saved on the hard disk of the connected computer.
With entry of a new case number, a new folder (subdirectory) is made with the case number as name. Each image name combines the case and item numbers with "_ref" and the "tif" extension, i.e. casenumber_itemnumber_ref.tif.
This 'raw' image is stored as a "read-only" file and can be viewed as the negative in traditional photography.
Delivery
The GLSCAN is delivered with an up-to-date computer (Windows) and a 30" monitor, GLSCANsoftware, a vacuum pump (mounted in a sound-absorbing, mechanically ventilated cabinet - dimensions [L x W x H]: 42.5 x 40.5 x 79 cm) and two vacuum tables of 13 and 18 cm width (maximum scan length 36 cm). Each vacuum table is fitted with a ruler on a long and a short side. Image processing software is not included.