基于笔式人机交互的化学实验系统

he experiment is one of the most important phases in chemical lessons. Since it requies special equipments and spaces, and sometimes dangerous, the digital demo system become an interesting substitute. In this paper, we design and implement a novel chemical experiment system with pen-based human-computer interaction. Fistly, we extract features from the digital ink written by different users. Secondly, we recognize the symbols which represent chemical equipments and substance. Finally, we find the appropriate chemical expressions with a prepared dictionary and show them in our system. We test the proposed system on a dataset and the result shows that it's flexiable and robust.