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Issue No.03 - March (2002 vol.24)
pp: 313-328
ABSTRACT
<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>
INDEX TERMS
systems and applications, active and real-time vision, pen-based computing, pen-based interface
CITATION
M.E. Munich, P. Perona, "Visual Input for Pen-Based Computers", IEEE Transactions on Pattern Analysis & Machine Intelligence, vol.24, no. 3, pp. 313-328, March 2002, doi:10.1109/34.990134
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