Research On Illumination Consistency In Augment Reality

Augmented Reality(Augmented Reality,AR)technology is a new research field that develop on the basis of Virtual Reality(Virtual Reality,VR),it can make the virtual objects and real scene blend together.The user can use the humancomputer interaction technology to interact with the virtual objects,thereby to get the experience that is beyond the real world.The time consistency?geometric consistency and illumination consistency is three aspects to archieve high level of reality in AR,researchers begin to pay close attention to the reality of virtualreal scene along with the more perfect time consistency and geometric consistency,to solve the prefect unity between virtual objects and real scene,the illumination consistency is the necessary condition to archieve high level of consistenty.This paper expounds the illumination consistency technology on the basis of introducing the composition of augmented reality system and characteristics,and put forward the illumination consistency algorithm in this paper--Light Source Detection Algorithm in Real-time Scene Based on Single Tag.the main content includes market research,concrete engineering technology,the core algorithm optimization and selected from four aspects:Firstly,investigate and survey the applications of augmented reality technology,the research background,domestic and foreign development present situation and the implementation method of research to study how to achieve illumination consistency in AR,so the virtual objects can blend with the real scene together better.Secondly,elaborated engineering framework with the light source detection algorithm in real-time scene based on single tag as well as the selection of the core technology,such as image recognition and tracking technology,the camera parameter matrix calculation and 3d reconstruction technology.Thirdly,promot the performance of recognizing AR marks.Take orientation of image patches into account,and name it as oriented ferns(OFerns).Finally,design and realizes a AR system with light source detection algorithm in real-time scene based on single tag to test and verify the feasibility of the techniques mentioned above.After data analysis and evaluation,the system has the actual fusion,can be natural human computer interaction,generate shadow,the color and strength of the light source correctly and has the good actual use value.