1. From the Editor-in-Chief

   • Kimon P. Valavanis

   Editorial 04 July 2012 Pages: 87 - 87

2. Research on the Real-time Tracking Information of Three-dimension Welding Seam in Robotic GTAW Process Based on Composite Sensor Technology

   • Yanling Xu
   • Na Lv
   • Shanben Chen

   OriginalPaper 15 April 2012 Pages: 89 - 103

3. Mutual Synchronization of Multiple Robot Manipulators with Unknown Dynamics

   • Rongxin Cui
   • Weisheng Yan

   OriginalPaper 20 April 2012 Pages: 105 - 119

4. How the Location of the Range Sensor Affects EKF-based Localization

   • Fulvio Mastrogiovanni
   • Antonio Sgorbissa
   • Renato Zaccaria

   OriginalPaper 13 April 2012 Pages: 121 - 145

5. Hierarchical Classifiers for Robust Topological Robot Localization

   • Ehsan Fazl-Ersi
   • James H. Elder
   • John K. Tsotsos

   OriginalPaper 14 April 2012 Pages: 147 - 163

6. A Novel Trajectory Generation Method for Robot Control

   • KeJun Ning
   • Tomas Kulvicius
   • Florentin Wörgötter

   OriginalPaper Open access 16 June 2012 Pages: 165 - 184

7. Evaluation of Three Vision Based Object Perception Methods for a Mobile Robot

   • Arnau Ramisa
   • David Aldavert
   • Ramon Lopez de Mantaras

   OriginalPaper 28 April 2012 Pages: 185 - 208