Visual input for pen-based computers

被引：23
|
作者：
Munich, ME
Perona, P
机构：
[1] Vocalpoint Technol, San Francisco, CA 94103 USA
[2] CALTECH, Dept Elect Engn 136 93, Pasadena, CA 91125 USA
来源：
IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE | 2002年 / 24卷 / 03期
基金：
美国国家科学基金会;
关键词：
systems and applications; active and real-time vision; pen-based computing; pen-based interface;
D O I：
10.1109/34.990134
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
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.
引用
收藏
页码：313 / 328
页数：16
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