资 源 简 介
QuickDiagram is a system developed by a team led by Dr. Liu Wenyin (www.cs.cityu.edu.hk/~liuwy) for quick input and understanding of circuit diagrams by sketching. With a user sketching a (complete or partial) component/symbol or wire (connecting two symbols) of the diagram, the system can recognize and beautify it immediately. After the entire diagram is complete, certain understandings can be obtained. The system has a symbol database with more than 600 circuit devices/symbols. Three steps of stroke processing, filtration, and on-line recognition are used to recognize a circuit symbol even before it is completely sketched. The following two methods are used to interpret the recognized diagram: 1) circuit simulation on resistive circuits based on the Nodal Analysis, and 2) generation of PSpice codes from the recognized diagrams. Experiments on a few sketched circuit diagrams show that the results are robust and accurate for both recognition and understanding. This system is still
