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�������պ����ѧѧ�� 2006, Vol. 32 Issue (05) :621-624    DOI:
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��Ӧ��1, ������1, ��־��2*
1. �������պ����ѧ ��е���̼��Զ���ѧԺ, ���� 100083;
2. �������������е�����ල��������,���� 100007
Incremental recognition method for pen-based sketch
Gong Yingkui1, Fan Yuqing1, Wu Zhifang2*
1. School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;
2. Quality Inspection Center of Beijing Materials Handling Research Institute, Beijing 100007, China

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Abstract�� A method of two-dimensional sketch recognition based on incremental mode was proposed according to the characteristics of gesture interaction inpen-based three-dimensional modeling technology. The sketch recognition includes: on-line stroke recognition and conversion, automatic constraint catching and appending, two-dimensional combined entity recognition and rectification, feature gesture recognition and three-dimensional feature modeling. Three-dimensional feature modeling thinking and intelligent reasoning technology based on context-aware were used to the recognition. Feature information for three-dimensional modeling was distilled step-by-step from disorganized and inaccurate two-dimensional sketch. The complexity and accumulative uncertainty are reduced effectively by the method. Feature gesture was mapped into three-dimensional space according to implicit mapping mechanism to finish three-dimensional modeling in real time. Asa result, two-dimensional freehand sketch and three-dimensional accurate modeling are integrated effectively. It has been validated in a prototype system, PenSketch3D, with promising effect.
Keywords�� pen-based user interfaces   gesture interaction   sketch recognition   feature gesture modeling   human computer interaction     
Received 2005-05-27;


About author: ��Ӧ��(1974-),��,ɽ��ƽң��,��ʿ��, ykgong@163.com.
��Ӧ��, ������, ��־��.��ʽ��ͼ������ʶ��[J]  �������պ����ѧѧ��, 2006,V32(05): 621-624
Gong Yingkui, Fan Yuqing, Wu Zhifang.Incremental recognition method for pen-based sketch[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(05): 621-624
http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2006/V32/I05/621
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