An approach to object recognition using CTFM sensing

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• 作者：Patricia Worth ; ^{patriciaworth@gmail.com}  ; [Author Vitae] ; Phillip McKerrow  ; [Author Vitae]
• 关键词：CTFM ; Ultrasonics ; Mobility aid ; Object recognition ; Mahalanobis distance
• 刊名：Sensors and Actuators A ; Physical
• 出版年：2012
• 期刊代码：160_09244247
• 类别：et
• 出版时间：June, 2012
• 卷：179
• 期：Complete
• 页码：319-327
• 文件大小：667 K

摘要

An approach to recognizing two objects using CTFM ultrasonics is discussed in this paper. Extracting features from each object echoes power spectral density is detailed, and a method of object recognition using feature vectors and the Mahalanobis distance is presented. The results of this research indicate that it is possible to recognize simple geometry objects like a table and chair, which produce little information in their echoes. It is also possible to differentiate between varying perspectives of the same object.