In the modern era,preoperative planning is substantially facilitated by artificial reality technologies,which permit a better understanding of patient anatomy,thus increasing the safety and accuracy of surgical interv...In the modern era,preoperative planning is substantially facilitated by artificial reality technologies,which permit a better understanding of patient anatomy,thus increasing the safety and accuracy of surgical interventions.In the field of orthopedic surgery,the increase in safety and accuracy improves treatment quality and orthopedic patient outcomes.Artificial reality technologies,which include virtual reality(VR),augmented reality(AR),and mixed reality(MR),use digital images obtained from computed tomography or magnetic resonance imaging.VR replaces the user’s physical environment with one that is computer generated.AR and MR have been defined as technologies that permit the fusing of the physical with the virtual environment,enabling the user to interact with both physical and virtual objects.MR has been defined as a technology that,in contrast to AR,enables users to visualize the depth and perspective of the virtual models.We aimed to shed light on the role that MR can play in the visualization of orthopedic surgical anatomy.The literature suggests that MR could be a valuable tool in orthopedic surgeon’s hands for visualization of the anatomy.However,we remark that confusion exists in the literature concerning the characteristics of MR.Thus,a more clear description of MR is needed in orthopedic research,so that the potential of this technology can be more deeply understood.展开更多
With the development of modern oceanic observation technologies, coastal survey data have been experiencing a substantial growth. The integration management of the data from different disciplines, different sources an...With the development of modern oceanic observation technologies, coastal survey data have been experiencing a substantial growth. The integration management of the data from different disciplines, different sources and different formats has become a major research field in coastal geomorphology by using Geographic Information System （GIS）. This paper puts forward a new methodology framework of GIS techniques in coastal ocean geomorphology, including data acquisition, process, analysis, and representation. It focuses on some major GIS techniques to study the land-ocean interaction mechanism, such as spatial analysis, submarine topography model and three-dimension （3D） visualization, and apply its result to coastal urban planning, harbor site selection and geomorphology environment about coral reef and islands on the continental shelf. The case studies cover the whole coastal ocean to serve the social community, economical development and diplomatic rights for decision-making all round in the coastal zone. The research shows clearly that the application of coastal multi-source geospatial platform has changed the traditional coastal geomorphology science dramatically from its research scope, fields and methods, however, as made clear in this paper, extracting accurate information from remote sensing data and GIS databases for coastal geomorphological applications is a nontrivial challenge that requires the combined knowledge and skills of information scientists and geomorphologists.展开更多
文摘In the modern era,preoperative planning is substantially facilitated by artificial reality technologies,which permit a better understanding of patient anatomy,thus increasing the safety and accuracy of surgical interventions.In the field of orthopedic surgery,the increase in safety and accuracy improves treatment quality and orthopedic patient outcomes.Artificial reality technologies,which include virtual reality(VR),augmented reality(AR),and mixed reality(MR),use digital images obtained from computed tomography or magnetic resonance imaging.VR replaces the user’s physical environment with one that is computer generated.AR and MR have been defined as technologies that permit the fusing of the physical with the virtual environment,enabling the user to interact with both physical and virtual objects.MR has been defined as a technology that,in contrast to AR,enables users to visualize the depth and perspective of the virtual models.We aimed to shed light on the role that MR can play in the visualization of orthopedic surgical anatomy.The literature suggests that MR could be a valuable tool in orthopedic surgeon’s hands for visualization of the anatomy.However,we remark that confusion exists in the literature concerning the characteristics of MR.Thus,a more clear description of MR is needed in orthopedic research,so that the potential of this technology can be more deeply understood.
基金The Natural Science Foundation of Xi’an Jiaotong Universitythe China Scholarship Council postgraduate scholarship program under contract No 2007u0307
文摘With the development of modern oceanic observation technologies, coastal survey data have been experiencing a substantial growth. The integration management of the data from different disciplines, different sources and different formats has become a major research field in coastal geomorphology by using Geographic Information System （GIS）. This paper puts forward a new methodology framework of GIS techniques in coastal ocean geomorphology, including data acquisition, process, analysis, and representation. It focuses on some major GIS techniques to study the land-ocean interaction mechanism, such as spatial analysis, submarine topography model and three-dimension （3D） visualization, and apply its result to coastal urban planning, harbor site selection and geomorphology environment about coral reef and islands on the continental shelf. The case studies cover the whole coastal ocean to serve the social community, economical development and diplomatic rights for decision-making all round in the coastal zone. The research shows clearly that the application of coastal multi-source geospatial platform has changed the traditional coastal geomorphology science dramatically from its research scope, fields and methods, however, as made clear in this paper, extracting accurate information from remote sensing data and GIS databases for coastal geomorphological applications is a nontrivial challenge that requires the combined knowledge and skills of information scientists and geomorphologists.
