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Issue No. 03 - March (2002 vol. 24)
ISSN: 0162-8828
pp: 313-328
<p>The design and implementation of a camera-based, human-computer interface for acquisition of handwriting is presented. The camera focuses on a standard sheet of paper and images a common pen; the trajectory of the tip of the pen is tracked and the contact with the paper is detected. The recovered trajectory is shown to have sufficient spatio-temporal resolution and accuracy to enable handwritten character recognition. More than 100 subjects have used the system and have provided a large and heterogeneous set of examples showing that the system is both convenient and accurate.</p>
systems and applications, active and real-time vision, pen-based computing, pen-based interface

M. Munich and P. Perona, "Visual Input for Pen-Based Computers," in IEEE Transactions on Pattern Analysis & Machine Intelligence, vol. 24, no. , pp. 313-328, 2002.
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