@article{Park.2008,
  abstract = {The paper describes two experiments for investigating the influence of different levels of camera displacement on hand-eye coordination while using a video see-through head-mounted display. During the first experiment 15 camera positions with five levels of height displacement and three levels of depth displacement were compared in four different tasks. Using a two-way ANOVA the comparison of the calculated performance characteristic values showed significant influence of height displacement on hand-eye coordination. In conclusion cameras should be placed above or below eye level, but by no more than 35 mm, in order to preserve hand-eye coordination. In the second experiment, a mirror system was used to check hand-eye coordination in an exemplary medical task allowing the cameras to be placed virtually at eye level. A significant decrease in accuracy was found while using the head-mounted display compared to direct view. Finally, the mirror system was compared to the 15 camera positions using the data from the same tasks. Significant differences in performance were found between the mirror system and eye level position as well as the position slightly below eye level. The results of the experiment provide design recommendations for developers and users of video see-through systems.},
  author = {Park, M. and Serefoglou, S. and Schmidt, L. and Radermacher, K. and Schlick, C. and Luczak, H.},
  interhash = {e28c11ef8915cf05b960306e83987ce7},
  intrahash = {1b0c97d5470d5af7f9e981bd0a2eecfb},
  issn = {18759343},
  journal = {The Ergonomics Open Journal},
  pages = {46-53},
  title = {Hand-Eye Coordination Using a Video See-Through Augmented Reality System},
  url = {http://dx.doi.org/10.2174/1875934300801010046},
  volume = 1,
  year = 2008
}

@article{Zhang.2008,
  abstract = {Simulation on human tasks has become increasingly important in manufacturing systems' design, assessment and improvement. In order to evaluate working processes and human factors in autonomous production cells (APCs), a collective analyzis of human-centred simulation approaches in advanced manufacturing systems is carried out, and a human task-oriented simulation methodology is proposed in this paper. Based on the methodology, a comparative simulation study is carried out in a 3D laser welding production cell from the aspects of human task spectrum, human error and occupational requirements. Human task network models of both conventional working process and APC working process are constructed using timed coloured Petri Nets. The evaluation criteria architecture for the simulation is formulated and the respective algorithms and parameters for the criteria are discussed in detail. A simulation program using C++ is developed based on Poses++ Petri Net simulator. The simulation results show some important transitions of system performance and human factors from the conventional production cell to the APC, which can support the decision-making when redesigning the conventional production cells to fit the requirements of APCs.},
  author = {Zhang, X. and Schmidt, L. and Schlick, C. and Reuth, R. and Luczak, H.},
  interhash = {360c924f4d404efdb2c4499ef4188439},
  intrahash = {5365a8a65f52218b685eb460902b8d45},
  issn = {00207543},
  journal = {International Journal of Production Research},
  number = 18,
  pages = {5013-5041},
  title = {A Human Task-Oriented Simulation Study in Autonomous Production Cells},
  volume = 46,
  year = 2008
}