Application Of Virtual Reality Techniques Research Articles

Application of Virtual Reality Technique in the Construction of Modular Teaching Resources

This paper attempts to apply the virtual reality (VR) technique into modular teaching. The modularization of the course Materials of Civil Engineering was taken as an example. The virtual simulation resources were constructed for two teaching modules of the said course on Quest3D. The constructed resources are visual, interactive, scalable, updateable, and optimizable. Based on these resources, the two modules were combined into a virtual simulation system, and applied successfully in actual engineering. The research results open a novel path to modular teaching, and provide a good reference for course teaching in architectural studies.

Digital factory – virtual reality environments for industrial training and maintenance

ABSTRACT This study evaluates the use of virtual reality (VR) platforms, which is an integrated part of the digital factory for an industrial training and maintenance system. The digital factory-based VR platform provides an intuitive and immersive human–computer interface, which can be an efficient tool for industrial training and maintenance services. The outcomes from this study suggested that use of the VR platform for training and maintenance of complex industrial tasks should be encouraged and use of the VR platform for that purpose should be further evaluated. This paper highlighted the generic concept of the application of virtual reality technique within the digital factory to industrial maintenance and to build a low-cost VR application for a training and maintenance system. An application case on virtual reality technique in a power plant operations and maintenance is demonstrated within the scope of this research. Overall research implications on virtual reality concept in industrial applications are concluded with future research directions.

Application of virtual reality technique in operations of lesions in craniocervical junction

Objective To investigate the values of virtual reality(VR) technique in surgical planning of lesions in craniocervical junction. Methods We retrospectively analyzed 21 cases with craniocervical junction lesions who were admitted to Department of Neurosurgery, Fuxing Hospital Affiliated to Capital Medical University from September 2013 to August 2017. Surgical plans were made in the Dextroscope VR system. Preoperative data including MRI and CT images were transferred into the VR computer for image fusion, reconstruction, withdrawal and surgery simulation for guidance in operation. Results VR three-dimensional(3D) images of the 21 cases were successfully achieved, including nerves, vessels, skull and lesions. The anatomical relationship of lesions to the brainstem, cerebellum, arteries, veins and skull was clearly demonstrated. Surgical simulation and surgical planning of VR in the 21 patients were successfully performed. The 3D images obtained from VR were consistent with the real conditions. Total resection was achieved in 19 cases and near-total resection in 2. Conclusion Dextroscope VR system could clearly demonstrate and quantify the 3D anatomical relationship of craniocervical junction lesions to their surrounding structures, which is helpful for optimal individualized surgical planning and improvement of surgical effect. Key words: Neurosurgical procedures; Imaging, three-dimensional; Virtual reality; Craniocervical junction region; Three-dimensional reconstruction

The application of virtual reality technique in ophthalmology teaching

With the development of medical theory and technology, the traditional teaching patterns have fallen behind the requirements for the training of medical students. Recently, virtual reality techniques have been proved to be effective in the practice of medical education. Through summarizing the experience of building simulation systems of eye anatomy, clinical features of eye and simulation practice, the author has elaborated the role of virtual reality technology in ophthalmology teaching theory and practice, which is of profound significance to improve the overall level of ophthalmology teaching. Key words: Virtual reality techniques; Ophthalmology teaching; Application

Application of Virtual Reality Techniques in Design of Ergonomic Manufacturing Workplaces

This paper presents possibilities of application of the immersive VR and the haptic technologies during the complex process of design and virtual prototyping of the manufacturing workplaces characterized with a high level of ergonomic quality. Two case studies are presented: a workplace for stud welding and a set of two workplaces, for hole drilling and manual assembly. In the first case study, haptic device with force feedback effect was used to improve ergonomics of main operator activities. In the second case study, immersive approach was used, namely Head-Mounted Device, tracking and gesture recognition systems, to test and improve ergonomics of the whole workplace. Application of VR techniques allows to present the virtual prototype of the workplace in its real operation environment, limiting the need for use of real mock-ups. Therefore, Virtual Reality allows to conduct a number of analyses related to designed prototypes, such as: dimensions of devices and possibilities of adjustment to height of the human operator, and arrangement of control and signaling devices according to the rules of ergonomic design. To conduct these analyses, full interaction between user and workplace must be programmed, including collision detection, kinematics of the devices and possibilities of activating their various functions in relation with other objects in the virtual scene.

RESEARCH AND APPLICATION OF THE DESKTOP VIRTUAL REALITY TECHNIQUE

The virtual reality technique is one of the composite information techniques which have wide application prospects. This paper describes the application of virtual reality technique and the characteristic of the desktop VR system, and deals with its key technology.

Application of virtual reality technique in construction of 3-dimensional petrons bone model

Objective To evaluate the application of virtual reality system in construction of 3-dimensional petrous bone model.Methods The DICOM data of the CT performed for 15 adult cadaver heads were transferred to and reconstructed in the Destroscope virtual reality system.Images were extracted to show surface of petrous bone and ossicular chain.The images of structures in osseous tube and impression of petrous bone were extracted by the skill of invert intensity.The lengths of correlated anatomical structures such as geniculate ganglion,cochlear,internal carotid artery,glomus jugulare,external aperture of inner acoustic meatus were measured in the virtual reality environment.Results Three-dimensional images could illustrate the spatial relationship of anatomic structures related to the petrous bone distinctly.The data of measure were obtained conveniently,which had no dead angles of observation.Conclusion The 3-dimentional petrous bone model constructed by virtual reality technique can be used in anatomic research with good visualization. Key words: Virtual reality; Petrous bone; 3-dimensional anatomy

Virtual reality applied to traffic accident analysis

This paper presents an application of virtual reality techniques to traffic accident analysis. The paper shows the features of the developed software and the characteristics of the corresponding virtual environment: objects, tasks, behaviors, actions, etc. Physical models used to define the real behavior of the objects involved in the accident are also described. A specific collision model is presented. This model reproduces the forces that appear in a traffic accident. Some considerations on further applications of this work are also presented, including its use in a network environment, including the WWW. Finally, a case study is introduced.

Computervision Executives Say Design Technology Advances Promise Significant Productivity Gains by 1996

ADVANCES in computer‐aided design and engineering could increase productivity 10‐fold in the next three years as a result of new developments such as realistic application of virtual reality techniques that allow designers to more easily create and review their most sophisticated projects by visualising the literal impact of external forces on their design, according to Donald McInnis, vice president of software development and marketing for Computervision.