Vibrotactile feedback for conveying object shape information as perceived by artificial sensing of robotic arm

详细信息    查看全文

• 作者：Anwesha Khasnobish ; Monalisa Pal ; Dwaipayan Sardar…
• 刊名：Cognitive Neurodynamics
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：10
• 期：4
• 页码：327-338
• 全文大小：2,521 KB
• 刊物主题：Biomedicine general; Neurosciences; Computer Science, general; Artificial Intelligence (incl. Robotics); Biochemistry, general; Cognitive Psychology;
• 出版者：Springer Netherlands
• ISSN：1871-4099
• 卷排序：10

文摘

This work is a preliminary study towards developing an alternative communication channel for conveying shape information to aid in recognition of items when tactile perception is hindered. Tactile data, acquired during object exploration by sensor fitted robot arm, are processed to recognize four basic geometric shapes. Patterns representing each shape, classified from tactile data, are generated using micro-controller-driven vibration motors which vibrotactually stimulate users to convey the particular shape information. These motors are attached on the subject’s arm and their psychological (verbal) responses are recorded to assess the competence of the system to convey shape information to the user in form of vibrotactile stimulations. Object shapes are classified from tactile data with an average accuracy of 95.21 %. Three successive sessions of shape recognition from vibrotactile pattern depicted learning of the stimulus from subjects’ psychological response which increased from 75 to 95 %. This observation substantiates the learning of vibrotactile stimulation in user over the sessions which in turn increase the system efficacy. The tactile sensing module and vibrotactile pattern generating module are integrated to complete the system whose operation is analysed in real-time. Thus, the work demonstrates a successful implementation of the complete schema of artificial tactile sensing system for object-shape recognition through vibrotactile stimulations.KeywordsHaptic perceptionObject shape recognitionVibrotactile feedbackTactile dataHuman computer interface