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dc.contributor.authorDrakopoulos, Leonidas
dc.date.accessioned2012-03-14T17:39:36Z
dc.date.available2012-03-14T17:39:36Z
dc.date.issued2008-12
dc.identifier.urihttp://hdl.handle.net/10945/3855
dc.description.abstractIn this thesis, the feasibility of developing a pen input device using an inertial/magnetic sensor module is investigated. The emphasis is on testing and evaluation of algorithms for computing handwriting trajectories based on accelerometer measurement data. This research starts by placing the inertial/magnetic sensor in a 2-D plane and writing alphanumeric characters. Before continuing to evaluate the 3-D writing, a calibration algorithm is implemented for computing the length between the nose of the pen input device and the point where the inertial/magnetic sensor is attached to the pen. A velocity correction algorithm is also applied by recognizing the pause phases in the writing in order to eliminate the drift in acceleration measurements and accurately reproduce handwriting trajectories. Extensive experiments conducted for 2-D and 3-D writings indicate that it is possible to develop a pen input device to track handwriting using an inertial/magnetic sensor module. However, the performance of the handwriting tracking depends on the accuracy of the sensor module and the speed of the writing motion.en_US
dc.description.urihttp://archive.org/details/testingndevaluat109453855
dc.format.extentxx, 59 p.: ill. ;en_US
dc.publisherMonterey, California. Naval Postgraduate Schoolen_US
dc.subject.lcshPen-based computersen_US
dc.subject.lcshApplication softwareen_US
dc.subject.lcshDevelopmenten_US
dc.titleTesting and evaluation of a pen input device using an interial/magnetic sensor moduleen_US
dc.typeThesisen_US
dc.contributor.secondreaderCristi, Robert.
dc.contributor.secondreaderRomano, Marcello.
dc.contributor.secondreaderYun, Xiaoping
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.description.serviceHellenic Navy author.en_US
dc.identifier.oclc300318967
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US
etd.verifiednoen_US
dc.description.distributionstatementApproved for public release; distribution is unlimited.


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