Mobile device is an important interactive platform. Due to the limitation of computation, memory, display area and energy, how to realize the efficient and real-time interaction of 3D models based on mobile devices is...Mobile device is an important interactive platform. Due to the limitation of computation, memory, display area and energy, how to realize the efficient and real-time interaction of 3D models based on mobile devices is an important research topic. Considering features of mobile devices, this paper adopts remote rendering mode and point models, and then, proposes a transmission and rendering approach that could interact in real time. First, improved simplification algorithm based on MLS and display resolution of mobile devices is proposed. Then, a hierarchy selection of point models and a QoS transmission control strategy are given based on interest area of operator, interest degree of object in the virtual environment and rendering error. They can save the energy consumption. Finally, the rendering and interaction of point models are completed on mobile devices. The experiments show that our method is efficient.展开更多
动作协调形态的获得与视觉通路的发展有密切关系,而视觉通路的信息加工起始于视觉信息的选择。使用德制头戴式i View X HED4眼动仪对不同运动水平的儿童乒乓球选手在接发球时的视觉焦点加以考察,得出结论认为:1)不同技能水平的儿童在接...动作协调形态的获得与视觉通路的发展有密切关系,而视觉通路的信息加工起始于视觉信息的选择。使用德制头戴式i View X HED4眼动仪对不同运动水平的儿童乒乓球选手在接发球时的视觉焦点加以考察,得出结论认为:1)不同技能水平的儿童在接发球时的视觉焦点不同;2)优秀组的主要焦点为球拍,说明球拍的变化是影响选手进行运动预期和运动决策的重要信息;3)一般组和初学组的视觉焦点都集中在球、其它部位的AOI区域上,而较少落到对手球拍区域上,说明其对球的落点判断更依赖于已经发生的事实,而不能有效运用球拍的变化信息做到提前预测。展开更多
基金Supported by the National Natural Science Foundation of China (Grant No. 60873159)the Program for New Century Excellent Talents in University (Grant No. NCET-07-0039)the National High-Tech Research & Development Progrom of China (Grant No. 2006AA01Z333)
文摘Mobile device is an important interactive platform. Due to the limitation of computation, memory, display area and energy, how to realize the efficient and real-time interaction of 3D models based on mobile devices is an important research topic. Considering features of mobile devices, this paper adopts remote rendering mode and point models, and then, proposes a transmission and rendering approach that could interact in real time. First, improved simplification algorithm based on MLS and display resolution of mobile devices is proposed. Then, a hierarchy selection of point models and a QoS transmission control strategy are given based on interest area of operator, interest degree of object in the virtual environment and rendering error. They can save the energy consumption. Finally, the rendering and interaction of point models are completed on mobile devices. The experiments show that our method is efficient.
文摘动作协调形态的获得与视觉通路的发展有密切关系,而视觉通路的信息加工起始于视觉信息的选择。使用德制头戴式i View X HED4眼动仪对不同运动水平的儿童乒乓球选手在接发球时的视觉焦点加以考察,得出结论认为:1)不同技能水平的儿童在接发球时的视觉焦点不同;2)优秀组的主要焦点为球拍,说明球拍的变化是影响选手进行运动预期和运动决策的重要信息;3)一般组和初学组的视觉焦点都集中在球、其它部位的AOI区域上,而较少落到对手球拍区域上,说明其对球的落点判断更依赖于已经发生的事实,而不能有效运用球拍的变化信息做到提前预测。
