Background Real-time 3D rendering and interaction is important for virtual reality(VR)experimental education.Unfortunately,standard end-computing methods prohibitively escalate computational costs.Thus,reducing or dis...Background Real-time 3D rendering and interaction is important for virtual reality(VR)experimental education.Unfortunately,standard end-computing methods prohibitively escalate computational costs.Thus,reducing or distributing these requirements needs urgent attention,especially in light of the COVID-19 pandemic.Methods In this study,we design a cloud-to-end rendering and storage system for VR experimental education comprising two models:background and interactive.The cloud server renders items in the background and sends the results to an end terminal in a video stream.Interactive models are then lightweight-rendered and blended at the end terminal.An improved 3D warping and hole-filling algorithm is also proposed to improve image quality when the user's viewpoint changes.Results We build three scenes to test image quality and network latency.The results show that our system can render 3D experimental education scenes with higher image quality and lower latency than any other cloud rendering systems.Conclusions Our study is the first to use cloud and lightweight rendering for VR experimental education.The results demonstrate that our system provides good rendering experience without exceeding computation costs.展开更多
This paper explored and discussed the cognition of informatization geomatics innovative talents cultivating laws and the basic principles and teaching system of informatization experiment teaching in the informatizati...This paper explored and discussed the cognition of informatization geomatics innovative talents cultivating laws and the basic principles and teaching system of informatization experiment teaching in the informatization experimental teaching innovation.展开更多
The scientificalization1 of educational research methods was always the most predominant in the two tides of educational experiment in China in the twentieth century,the result of which was unexpectedly dissatisfactor...The scientificalization1 of educational research methods was always the most predominant in the two tides of educational experiment in China in the twentieth century,the result of which was unexpectedly dissatisfactory,because researchers misunderstood the connotation of scientificalization in such a degree that resulted in the worship for methods and thought of replacement.If researchers reflect dialectically on the classic codes of experiment,and aim at reconstructing the viewpoint of experiment in education in the dimensions of ideas and pattern,they would guide the research on education by an“ideal type”,decently intervene the“logic of practice”with the“logic of theory”,so that the theorists and practitioners in education can finally coexist and co-develop.展开更多
Educational philosophy in China during the 20th century started with the introduction of John Dewey’s educational philosophy thoughts,followed by the dissemination of Marxism thoughts of education,and initially estab...Educational philosophy in China during the 20th century started with the introduction of John Dewey’s educational philosophy thoughts,followed by the dissemination of Marxism thoughts of education,and initially established the framework of educational philosophy as an academic discipline.After the foundation of the People’s Republic of China in 1949,especially during the 1980s,under the guidance of Marxism,the discipline of educational philosophy has been maturing.While exploring China’s history of educational philosophy,this article also covers contemporary Western development.Future trends of this discipline include extending specific fields of research,increasing internationalization of research,enhancing the functions of both critique and guiding ideals of educational philosophy.展开更多
基金the National Key Research and Development Project of China(2018YFB1004904)National Natural Science Foundation of China(U1909204).
文摘Background Real-time 3D rendering and interaction is important for virtual reality(VR)experimental education.Unfortunately,standard end-computing methods prohibitively escalate computational costs.Thus,reducing or distributing these requirements needs urgent attention,especially in light of the COVID-19 pandemic.Methods In this study,we design a cloud-to-end rendering and storage system for VR experimental education comprising two models:background and interactive.The cloud server renders items in the background and sends the results to an end terminal in a video stream.Interactive models are then lightweight-rendered and blended at the end terminal.An improved 3D warping and hole-filling algorithm is also proposed to improve image quality when the user's viewpoint changes.Results We build three scenes to test image quality and network latency.The results show that our system can render 3D experimental education scenes with higher image quality and lower latency than any other cloud rendering systems.Conclusions Our study is the first to use cloud and lightweight rendering for VR experimental education.The results demonstrate that our system provides good rendering experience without exceeding computation costs.
文摘This paper explored and discussed the cognition of informatization geomatics innovative talents cultivating laws and the basic principles and teaching system of informatization experiment teaching in the informatization experimental teaching innovation.
文摘The scientificalization1 of educational research methods was always the most predominant in the two tides of educational experiment in China in the twentieth century,the result of which was unexpectedly dissatisfactory,because researchers misunderstood the connotation of scientificalization in such a degree that resulted in the worship for methods and thought of replacement.If researchers reflect dialectically on the classic codes of experiment,and aim at reconstructing the viewpoint of experiment in education in the dimensions of ideas and pattern,they would guide the research on education by an“ideal type”,decently intervene the“logic of practice”with the“logic of theory”,so that the theorists and practitioners in education can finally coexist and co-develop.
文摘Educational philosophy in China during the 20th century started with the introduction of John Dewey’s educational philosophy thoughts,followed by the dissemination of Marxism thoughts of education,and initially established the framework of educational philosophy as an academic discipline.After the foundation of the People’s Republic of China in 1949,especially during the 1980s,under the guidance of Marxism,the discipline of educational philosophy has been maturing.While exploring China’s history of educational philosophy,this article also covers contemporary Western development.Future trends of this discipline include extending specific fields of research,increasing internationalization of research,enhancing the functions of both critique and guiding ideals of educational philosophy.
