The Experts below are selected from a list of 57429 Experts worldwide ranked by ideXlab platform
Ying Zhang - One of the best experts on this subject based on the ideXlab platform.
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Creation and evaluation of a multi-sensory virtual Assembly Environment
International Journal of Automation and Computing, 2008Co-Authors: Ying Zhang, Adrian R.l. TravisAbstract:The multi-modal information presentation, integrated into the virtual Environment (VE), has potential for stimulating different senses, improving the user’s impression of immersion, and increasing the amount of information that is accepted and processed by the user’s perception system. The increase of the useful feedback information may reduce the user’s cognitive load, thus enhancing the user’s efficiency and performance while interacting with VEs. This paper presents our creation of a multi-sensory virtual Assembly Environment (VAE) and the evaluation of the effects of multi-sensory feedback on the usability. The VAE brings together complex technologies such as constraint-based Assembly simulation, optical motion tracking technology, and real-time 3D sound generation technology around a virtual reality workbench and a common software platform. The usability evaluation is in terms of its three attributes: efficiency of use, user satisfaction, and reliability. These are addressed by using task completion times (TCTs), questionnaires, and human performance error rates (HPERs), respectively. Two Assembly tasks have been used to perform the experiments, using sixteen participants. The outcomes showed that the multi-sensory feedback could improve the usability. They also indicated that the integrated feedback offered better usability than either feedback used in isolation. Most participants preferred the integrated feedback to either feedback (visual or auditory) or no feedback. The participants’ comments demonstrated that nonrealistic or inappropriate feedback had negative effects on the usability, and easily made them feel frustrated. The possible reasons behind the outcomes are also analysed by using a unifying human computer interaction framework. The implications, concluded from the outcomes of this work, can serve as useful guidelines for improving VE system design and implementation.
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Evaluation of Multi-sensory Feedback on the Usability of a Virtual Assembly Environment
Journal of Multimedia, 2007Co-Authors: Ying Zhang, Adrian Travis, Neil CollingsAbstract:Virtual Assembly Environment (VAE) technology has the great potential for benefiting the manufacturing applications in industry. Usability is an important aspect of the VAE. This paper presents the usability evaluation of a developed multi-sensory VAE. The evaluation is conducted by using its three attributes: (a) efficiency of use; (b) user satisfaction; and (c) reliability. These are addressed by using task completion times (TCTs), questionnaires, and human performance error rates (HPERs), respectively. A peg-in-a-hole and a Sener electronic box Assembly task have been used to perform the experiments, using sixteen participants. The outcomes showed that the introduction of 3D auditory and/or visual feedback could improve the usability. They also indicated that the integrated feedback (visual plus auditory) offered better usability than either feedback used in isolation. Most participants preferred the integrated feedback to either feedback (visual or auditory) or no feedback. The participants’ comments demonstrated that nonrealistic or inappropriate feedback had negative effects on the usability, and easily made them feel frustrated. The possible reasons behind the outcomes are also analysed.
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Evaluation of auditory and visual feedback on task performance in a virtual Assembly Environment
Presence: Teleoperators and Virtual Environments, 2006Co-Authors: Ying Zhang, Terrence Fernando, Hannan Xiao, Adrian R.l. TravisAbstract:This paper presents the creation of an Assembly simulation Environment with multisensory feedback (auditory and visual), and the evaluation of the effects of auditory and visual feedback on the task performance in the context of Assembly simulation in a virtual Environment (VE). This VE experimental system platform brings together complex technologies such as constraint-based Assembly simulation, optical motion tracking technology, and real time 3D sound generation technology around a virtual reality workbench and a common software platform. A peg-in-a-hole and a Sener electronic box Assembly task have been used as the task cases to conduct the human factor experiment, using sixteen participants. Both objective performance data (i.e., task completion time, TCT; and human performance error rate, HPER) and subjective opinions (i.e., questionnaires) on the utilization of auditory and visual feedback in a virtual Assembly Environment (VAE) have been gathered from the experiment. Results showed that the introduction of auditory and/or visual feedback into VAE did improve the Assembly task performance. They also indicated that integrated feedback (auditory plus visual) offered better Assembly task performance than either feedback used in isolation. Most participants preferred integrated feedback to either individual feedback (auditory or visual) or no feedback. The participants’ comments demonstrated that nonrealistic or inappropriate feedback had a negative effect on the task performance, and easily made them frustrated.
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VSMM - The use of multi-sensory feedback to improve the usability of a virtual Assembly Environment
Interactive Technologies and Sociotechnical Systems, 2006Co-Authors: Ying Zhang, Adrian TravisAbstract:This paper presents the usability evaluation of our developed multi-sensory Virtual Assembly Environment (VAE). The evaluation is conducted by using its three attributes: 1) efficiency of use; 2) user’s satisfaction; and 3) reliability in use. These are addressed by using task completion times (TCTs), questionnaires, and human performance error rates (HPERs), respectively. A peg-in-a-hole and a Sener electronic box Assembly tasks have been used as the task cases to perform the experiments, using sixteen participants. The experimental outcomes are analysed and discussed.
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CIT - Can Multi-sensory Feedback Improve the Usability of the Virtual Assembly Environment?
The Sixth IEEE International Conference on Computer and Information Technology (CIT'06), 2006Co-Authors: Ying Zhang, Adrian Travis, Hannan XiaoAbstract:Usability is an important aspect of Virtual Assembly Environment (VAE). This paper presents the evaluation of the usability of our developed multi-sensory VAE. The usability evaluation is in terms of its three attributes: (a) efficiency of use; (b) user?s satisfaction; and (c) reliability in use. These are addressed by using task completion times (TCTs), questionnaires, and human performance error rates (HPERs), respectively. A pegin- a-hole and a Sener electronic box Assembly task cases have been used to perform the experiments, using sixteen participants. The outcomes showed that the introduction of 3D auditory and/or visual feedback could improve the usability. They also indicated that the integrated feedback (visual plus auditory) offered better usability than either feedback used in isolation. Most participants preferred the integrated feedback to either feedback (visual or auditory) or no feedback. The possible reasons behind the outcomes are also analysed.
Lin Cai-xing - One of the best experts on this subject based on the ideXlab platform.
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An Interactive Virtual Assembly Environment Based on VRML and JAVA
Computer Simulation, 2004Co-Authors: Lin Cai-xingAbstract:Virtual reality modeling language as the internal standards of virtual reality on internet has got more and more attention. This paper introduces the interactive methods of the virtual reality world and outside world, the method of using the EAI and Java Applet to realize an interactive internet virtual Assembly Environment has been researched and the running example has been given. Using this system we can exchange the design messages with other people through the internet.
Xin Gao - One of the best experts on this subject based on the ideXlab platform.
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Study on the perception mechanism and method of virtual and real objects in augmented reality Assembly Environment
2009 4th IEEE Conference on Industrial Electronics and Applications, 2009Co-Authors: Jingzhou Song, Qingxuan Jia, Hanxu Sun, Xin GaoAbstract:Augmented reality Assembly, is a promising application of virtual reality in design and manufacturing and has drawn much more and more attentions from industries and research institutes. The foucs of this study are as follows. (1) using the agent-oriented modeling for subAssembly object and the behavior reasoning based on petri net model of Environment, to build the system model of augmented reality Assembly Environment and construct the percepting mechanism of the virtual and real objects; (2) based on above percepting mechanism, to solve the epipolar geometry constraint by least robustness square estimation model, and to sense the depth of the occluded virtual objects or real objects in the Environment through Assembly scene recognizing, background eliminating and geometrical features restructuring of product contour; (3) combining awareness process of object features matching, constrained motion and features fitting with image based visual hull generating and volume querying, to detect the collision of virtual and real objects, including the dynamic deformable objects. The reseach results is of very important academic and applicative interest in the field of digital design, Assembly and maintenace. It would be helpful to promote the application research of augemented reality and virtual reality technology.
Hu Zhiyong - One of the best experts on this subject based on the ideXlab platform.
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VRML & Java based virtual Assembly technology
Computer-Aided Engineering, 2006Co-Authors: Hu ZhiyongAbstract:The theory of virtual Assembly technology is studied. With the principle of 3D graphics space coordinate transformation, the visual interactive virtual Assembly Environment based on Cortona explorer is constructed by using virtual reality modeling language (VRML) and Java. And an example of virtual Assembly process is given.
Mario G. Beruvides - One of the best experts on this subject based on the ideXlab platform.
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EFFECTS OF HIGH LABOUR TURNOVER IN A SERIAL Assembly Environment
International Journal of Production Research, 1997Co-Authors: S. T. Hutchinson, J.r. Villalobos, Mario G. BeruvidesAbstract:This paper presents an examination of the effects of high labour turnover in a serial Assembly Environment. The effect of personnel turnover on the throughput of a serial Assembly line is investigated along with the active rules at management's disposal to ameliorate this effect. The development and the results of the simulation models used to investigate the problem are presented. Results show that the impact of high turnover on throughput is significant and that some of the active rules introduced in this paper have a significant effect on its reduction.
