Research On Illumination Consistency Based On Virtual Reality Fusion

Augmented reality technology is a new human-computer interaction technology.It overlays virtual information into reality through computer technology,improves human sensory experience through virtual reality integration,so that users can enhance their understanding of the real world.At present,augmented reality technology plays an important role in entertainment,medical treatment,architecture,education,industry,military and other fields.Its key feature is virtual reality fusion,that is,computer rendered virtual object and real environment can achieve the matching and fusion display of space-time consistency in visual effect,including the fusion of content,space geometry,time,lighting and other levels.At present,the augmented reality technology system focuses on solving the spatial geometric consistency of virtual and real objects,while the problem of lighting consistency,which has a more significant impact on the visual effect,still lacks a systematic technical solution.In the augmented reality system,the virtual object and the real object share the same real light.Therefore,the correct estimation of the real light will help to achieve the light consistency of the virtual and real objects,so as to improve the reality of the virtual object.Aiming at the problem of inconsistent lighting and real lighting caused by the difficulty and low accuracy of lighting estimation in applications such as augmented reality,this paper proposes a global illumination estimation algorithm based on a monocular mobile camera.By adaptive camera parameter selection,each pixel of the image is regarded as equivalent point light source to estimates the intensity of the light,and uses the built-in gyroscope and other sensors to obtain the camera attitude and further calculate the position of each point light source.Through the connected component analysis method,the adjacent point light sources are merged to fit each of the light effects that have a greater impact on the light.Type light source;with the help of multi-light source lighting calculation method,calculate and estimate the impact of light source on virtual objects.The experimental results show that the algorithm in this paper can effectively estimate the lighting information in the real environment and solve the consistency problem of virtual and real lighting to a certain extent.