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Document cameras, also known as visual presenters, visualizers, digital overheads, or docucams, are real-time image capture devices for displaying an object to a large audience. Like an opaque projector , a document camera is able to magnify and project the images of actual, three-dimensional objects, as well as transparencies. 
Fundus photographs are also used to document abnormalities of disease process affecting the eye, and/or to follow up on the progress of the eye condition/disease such as diabetes, age-macular degeneration (AMD), glaucoma, multiple sclerosis, and neoplasm of the choroid, cranial nerves, retinal or eyeball.
Iris recognition is an automated method of biometric identification that uses mathematical pattern-recognition techniques on video images of one or both of the irises of an individual's eyes, whose complex patterns are unique, stable, and can be seen from some distance.
Many scanners support the attachment of document feeders which allow a large number of sheets of paper to be automatically scanned in succession. Using the SANE API, the front end simply has to "play back" the same set of options for each scan, driving the document feed in between scans to load the next sheet of paper.
Compared to JSON, BSON is designed to be efficient both in storage space and scan-speed. Large elements in a BSON document are prefixed with a length field to facilitate scanning. In some cases, BSON will use more space than JSON due to the length prefixes and explicit array indices. Example
Generally a SOHO MFP will have basic Print, Copy, Scan and Fax functionality only, but towards the larger end of the scale, may include simple document storage and retrieval, basic authentication functions and so on, making the higher end of the "SOHO" scale difficult to differentiate from the lower end of the "Office" MFP scale.
A travel document is an identity document issued by a government or international entity pursuant to international agreements to enable individuals to clear border control measures. Travel documents usually assure other governments that the bearer may return to the issuing country, and are often issued in booklet form to allow other governments ...
It's possible to print a document sending it via USB or scan it analogically with the platen glass scanner. Manufacture. The key master-making thermal head component is manufactured by Toshiba. Machines similar to Risographs are manufactured by Ricoh, Gestetner, Rex Rotary, Nashuatec and Duplo. Gestetner, Rex Rotary and Nashuatec are now owned ...