期刊
ADVANCED ENGINEERING INFORMATICS
卷 52, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.aei.2022.101548
关键词
CAD interaction; Selection intention discrimination; EEG; CSP; CNN; Adaptive weights
资金
- National Key R&D Program of China [2021YFB1714500]
- National Ministry Project of China [JCKY2018204B053]
This article introduces a selection intention discrimination (SID) model based on electroencephalogram (EEG) signals for object selection. The research shows that the model performs well, indicating that EEG-based object selection is feasible and can serve as an intuitive and natural interaction mode for CAD.
Currently, building natural interaction systems based on physiological signals has become an crucial requirement for the development of Computer Aided Design (CAD). As the first step of model operation in CAD, object selection is essential and the efficiency of selecting has a great impact on the experience of users. In the research community, gaze-based interaction for object selection has been well-established. However, this interactive mode is still imperfect due to Midas touch problem. In this work, a selection intention discrimination (SID) model is implemented to decode electroencephalogram (EEG) signals generated during object selection process. Common Spatial Pattern (CSP) is applied to extract spatial features from EEG in four frequency bands. Then these features are learned by a Convolutional Neural Network (CNN) equipped with an adaptive weights training module to realize the SID. To verify the decoding feasibility of this model, a cognitive experiment related to object selection is conducted. The empirical result shows that the performance of this model is good. It turns out that EEG-based object selection is feasible, which can be a intuitive and natural interaction mode for CAD.
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