Pointing-Device Text Input: Handwriting Recognition, Virtual Keyboard, Graffiti, Shapewriter, Dasher, Hexinput, Slideit, Graffiti 2, Swype

by Books LLC

Chapters: Handwriting Recognition, Virtual Keyboard, Graffiti, Shapewriter, Dasher, Hexinput, Slideit, Graffiti 2, Swype, Touchscreen Remote Control, Finger Touching. Source: Wikipedia. Pages: 45. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: Handwriting recognition is the ability of a computer to receive and interpret intelligible handwritten input from sources such as paper documents, photographs, touch-screens and other devices. The image of the written text may be sensed "off line" from a piece of paper by optical scanning (optical character recognition) or intelligent word recognition. Alternatively, the movements of the pen tip may be sensed "on line," for example by a pen-based computer screen surface. Handwriting recognition principally entails optical character recognition. However, a complete handwriting recognition system also handles formatting, performs correct segmentation into characters and finds the most plausible words. On-line handwriting recognition involves the automatic conversion of text as it is written on a special digitizer or PDA, where a sensor picks up the pen-tip movements as well as pen-up/pen-down switching. That kind of data is known as digital ink and can be regarded as a dynamic representation of handwriting. The obtained signal is converted into letter codes which are usable within computer and text-processing applications. The elements of an on-line handwriting recognition interface typically include: Commercial products incorporating handwriting recognition as a replacement for keyboard input were introduced in the early 1980s. Examples include handwriting terminals such as the Pencept Penpad and the Inforite point-of-sale terminal. With the advent of the large consumer market for personal computers, several commercial products were introduced to rep...More: http: //booksllc.net/?id=20361

46 pages, Paperback

First published May 30, 2010

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