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Document verifier :: The document verifier has a snail-like appearance. Document verifier :: The fingers on the right hand wrap around the red circular protrusion. Document verifier :: The device is used to scan documents such as checks or mail items. Document verifier :: The imager and illuminator scan the paper for printed symbols and unique fiber patterns.
Document verifier :: The diffuse lighting is used to read barcodes and other printed symbologies. Document verifier :: The diffuse lighting illuminates the paper evenly from all directions. Document verifier :: The oblique lighting is used to highlight the paper texture. Document verifier :: The oblique lighting casts shadows at an angle on the paper.
Document verifier :: Printed images contain embedded data that authenticates the document. Document verifier :: Each sheet of paper has a unique pattern of fibers.
Digital imaging technologies have made many documents with monetary value newly vulnerable to counterfeiting. Escher Labs’ FiberFingerprint® technology enables creation of secure, self-authenticating documents using paper texture information.

Blackdust developed a handheld PC peripheral for reading the texture of documents such as checks, envelopes, and currency. An illumination system was developed to enhance texture identification. After CAD modeling, prototypes were produced using laser and SLA fabrication. The design was inspired by the shell of a snail.


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