A Method Of Mobile Augmented Reality Based On Perception Of Positional Posture

AR(Augmented Reality),which combines real image with virtual information,is an efficient and immersive method of information dissemination.At the same time,web applications based on Web pages are more and more popular with users and developers because of their cross platform,lightweight and easy to spread characteristics.However,the relatively mature feasible scheme to achieve the combination of the two----Web AR,is very single,which based on the recognition of two-dimensional markers.Moreover,this method has great limitations: the virtual information can be rendered correctly only by identifying and tracking the preset two-dimensional markers in the scene precisely.The rapid development of modern browsers and intelligent mobile devices has brought new opportunities to solve this problem.Intelligent mobile devices integrate a variety of sensor components,while modern browsers provide web developers with the ability to obtain these sensor data.Based on this,this paper proposes a method of mobile augmented reality based on perception of positional posture,and implemented a Web AR prototype system based on intelligent mobile device browser.The main work of this paper is as follows: firstly,start on the results,the basic conditions for the realization of augmented reality based on perception of positional posture are discussed;based on the study of the key technologies and algorithms in virtual scene,such as the restoration of real-world relative position relationship,the matching of imaging parameters between virtual camera and solid camera,and the real-time synchronization of positional posture,a feasible solution is proposed based on the browser platform of intelligent mobile devices;designed a prototype system of Web AR application based on perception of positional posture,includes three modules: positional posture processing and video stream processing,and the key points are introduced in detail;in order to prove the validity of the method,the function and performance of the prototype system are tested.The experimental results show that the method in this paper can render the augmented reality effect correctly,and still has good performance when there is a lot of virtual information.