RT Conference Proceedings T1 Absolute position calculation for a desktop mobile rehabilitation robot based on three optical mouse sensors A1 Zabaleta, Haritz A1 Valencia, David A1 Perry, Joel A1 Veneman, Jan A1 Keller, Thierry AB ArmAssist is a wireless robot for after stroke upper limb rehabilitation. In this paper, we describe a method based on artificial landmark navigation system. The navigation system is only based in three optical mouse sensors. This enables to build a cheap but reliable position sensor. Two of the sensors are the data source for odometry calculations, and the third optical mouse sensor takes very low resolution pictures of a custom designed mat. These pictures are processed by an optical symbol recognition algorithm which will estimate the orientation of the robot and recognize the landmarks placed on the mat. The data fusion strategy is described to detect the misclassifications of the landmarks in order to fuse only the reliable information. The orientation given by the OSR algorithm is used to improve significantly the odometry and the recognition of the landmarks is used to reference the odometry to a absolute coordinate system SN 978-1-4244-4122-8 YR 2011 FD 2011 LA eng NO Zabaleta , H , Valencia , D , Perry , J , Veneman , J & Keller , T 2011 , Absolute position calculation for a desktop mobile rehabilitation robot based on three optical mouse sensors . in unknown . DS TECNALIA Publications RD 1 jul 2024