Latent FINGERPrint Analysis
Treated Latent Print on Counterfeit Bill
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Digital Image |
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Hyperspectral Image
Reproduced with permission from the US Secret Service
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APPLICATION NOTE
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ChemImage’s HSI Examiner™ 200 QD utilizes liquid crystal-based technology to enhance contrast and improve the visualization of latent fingerprints in comparison to conventional methods. This technology makes possible improved latent fingerprint detection, especially on complex, patterned or otherwise interfering backgrounds.
The HSI Examiner™ 200 QD Provides:
- Superior detection and contrast enhancement capabilities
- A spectrum associated with each pixel in the image
- Rapid data acquisition
- Nondestructive analysis
- Powerful image analysis software package
- Optimized image contrast against complex backgrounds
- Accurate, reliable, courtroom-friendly results
Images captured through traditional photography are collected at one specific color, with a single barrier filter. With hyperspectral imaging, the use of a liquid crystal-based technology replaces barrier filters with a software-controlled tunable filter. By combining standard digital imaging techniques with common spectroscopic methods, our technology provides increased sensitivity and enhanced fingerprint-to-substrate contrast.
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THE HSI EXAMINER 200 QD
With greater sensitivity to forgeries and alterations, streamlined-yet-powerful analytical tools and software, plus a host of visual and document imaging accessories—the HSI Examiner 200 QD collects images up two times faster than video spectral analysis systems. All this, plus access to optional integrated bank note and document databases, and this system truly becomes a comprehensive document examination workstation.
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