DocumentCode :
2817669
Title :
Analysis and compensation of errors in the input device based on inertial sensors
Author :
Yang, Jing ; Chang, Wook ; Bang, Woin-Chul ; Choi, Eun-Seok ; Kang, Kyong-Ho ; Cho, Sung-Jung ; Kim, Dong-Yoon
Author_Institution :
Ubiquitous Comput. lab, Samsung Adv. Inst. of Technol., Gyeonggi-Do, South Korea
Volume :
2
fYear :
2004
fDate :
5-7 April 2004
Firstpage :
790
Abstract :
Here, a pen-type input device is proposed to track trajectories in 3D space by using accelerometers and gyroscopes. Inertial navigation system (INS) theory, as an autonomous positioning technology widely adopted, is employed to track the users´ handwriting motion without external reference sensors or signals. The INS-based positioning system, however, suffers from unbounded error, which grows with time due to the integration process involved. In order to solve this problem, the system error model is built to analyze the influence of error sources. Then efficient error compensation algorithm based on zero velocity compensation (ZVC) is developed to reduce the effect of identified errors. The experiments show the effectiveness and feasibility of the proposed method.
Keywords :
Global Positioning System; accelerometers; error compensation; gyroscopes; handwriting recognition; image sensors; inertial navigation; interactive devices; motion estimation; position measurement; tracking; 3D space; accelerometer; autonomous positioning technology; error analysis; error compensation algorithm; gyroscope; inertial navigation system theory; inertial sensor; pen-type input device; position measurement; trajectory tracking; user handwriting motion tracking; zero velocity compensation; Information analysis; Information technology;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Technology: Coding and Computing, 2004. Proceedings. ITCC 2004. International Conference on
Print_ISBN :
0-7695-2108-8
Type :
conf
DOI :
10.1109/ITCC.2004.1286755
Filename :
1286755
Link To Document :
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