Survey of visualization methods for multiscene visual cue information in immersive environments
The immersive environment presents a near-real environment experience to users through technologies such as virtual reality(VR).Virtual reality is a simulated environment that generates the natural world through computers,provid-ing users with a rich immersion experience,interactivity,and imagination.In virtual reality,the eyes are the window for viewing the scene and a meaningful way to interact with the virtual world.Virtual reality is a very convenient way for users to obtain information about the location through visual means.The interaction of the scene enhances the users'perception.Augmented reality(AR)places virtual information in a natural setting,and users can interact with the virtual information in the actual location.To understand the application research of visual cue information in different immersive scenarios such as virtual reality,combined with the relationship between visual information cue methods,this paper mainly distin-guishes information according to the information display position,function use,and actual application field summarizes and discusses recent years—a study of information visualization methods for visual cues in immersive multiscene environ-ments.First,the prompt information outside the field of view is analyzed.Due to the limitation of hardware devices,the view range of the content in the scene viewed by users through different devices is affected.The methods for visual prompt information outside the field of view can be divided into overview+details and focus+context and discussed separately for 2D and 3D scenarios.The situation within the field of view focuses on the label placement around the model,which is slightly different from the problem of label layout in the scene and the problem of information outside the field of view.When the information in the field of view is displayed,more attention is given to the displayed information.Whether the content is occluded or overlapped,the authors hope to ensure users are more comfortable when viewing information con-tent.At the same time,different requirements are for the layout and distribution of label information.The primary purpose of research on label layout in the scene is to reduce label placement.Good overlapping and confusing problems reduce users'cognitive load when observing.From the perspective of information management,for the information in the scene,how to place the information reasonably and avoid occlusion can not only improve the user's scene awareness but also improve the user's experience in the scene.Considering the use function of visual prompt information,the fast visual infor-mation added in VR helps users know their position or scene information as soon as possible during the scene roaming.Just like the user in reality,when the users enter an unfamiliar scene,their location in the scene can be obtained through map navigation or eye-catching signs.Therefore,enhancing user perception through visual prompts is conducive to improving users'interactive experience in the scene,helping them grasp scene information quickly and find points of interest as soon as possible.In practical applications,the problems encountered in panoramic videos and their solutions,as well as prob-lems encountered in industrial and life scenarios,such as applying the currently popular video barrage in panoramic vid-eos,are discussed.Panoramic videos are viewed in immersive scenes or applications in entertainment and industrial pro-duction.However,judging from the current state of technology,some challenges remain in the visualization method of mul-tiscene visual cue information in the virtual reality environment in the following aspects:first,the method needs to improve user experience on display devices of different sizes in 2D scenes,improve the efficiency of users'acquisition and understanding of information,reduce the cognitive load of users when using machines,and improve the exploration of adapting to multisize screen information prompt methods.Second,the user's information prompting method outside the field of view in different 3D scenes can ensure a better immersion and a more convenient interaction method,providing users comprehensive information prompts.Third,the research on the technique of tag placement and layout in the scene,considering the user experience,mainly covers three aspects,namely,the way users view and interact with tags,the loca-tion and display time of titles,and the movement of tags and scenes.At the same time,users pay more attention to whether the interaction mode in the background is convenient,whether the viewing method is comfortable,and whether the effect on the scene's content is small enough.Fourth,the map navigation and attention guidance methods in the scene are criti-cal for users to obtain information.Therefore,the users'interactive experience when using map navigation and how to obtain important news and to improve the users'attention guidance need to be improved.Accuracy and reducing the effect of prompt information on immersion are of excellent research importance.Fifth,watching videos in virtual reality can pro-vide users a good viewing experience,so how to enhance their sense of immersion further in the viewing,present a better way to guide the storyline,and reduce the feeling of dizziness in the viewing are all issues worth discussing.Sixth,in sce-narios such as industrial production,education,and entertainment,how visual prompt information can form a good interac-tion with users and help users complete a series of tasks is important.The discussion in this paper on practical applications such as out-of-field,in-scene label layout and attention guidance in 2D and 3D scenes,and panoramic video viewing enables showing in more detail the effects of visual cue information in immersive environments and multiplescenes:research prospects and development directions.
immersive environmentvirtual reality(VR)augmented reality(AR)multiscenevisual prompt informa-tionpanoramic videoguidance of attention
NETL
NSTL
万方数据
