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Augment Reality Perception Rendering Based On The Theory Of Perception

Posted on:2014-05-21Degree:MasterType:Thesis
Country:ChinaCandidate:H Z ShiFull Text:PDF
GTID:2268330395989035Subject:Computer applications and technology
Abstract/Summary:PDF Full Text Request
Augmented reality through the computer technology to take the virtual infor-mation applied to real world. Augmented reality make the real environment and virtual objects real-time stack to the same picture or space at the same time. In the general case, augmented reality provides information which is different from humans can per-ceive. This information is usually3D virtual objects. So, in augmented reality applica-tions, the virtual objects accurate registration and to draw in the field is always the core problem. According to the core problem, we are generally the guarantee to realize three consistency, that camera consistency, geometric consistency and illumination uni-formity. These three consistency in augmented reality covered all aspects of the virtu-al-real fusion. But these three consistency of guarantee is not so easy, especially light consistency.Because the camera consistency in the present research in the field has been better solution and also have corresponding open source tools to enhance we use, such as PTAMM and ACTS, etc. So we use those original tools to solution the camera con-sistency.The main contribution of this paper is mainly concerned with geometric con-sistency and illumination uniformity.1. Geometric consistency:geometric consistency mainly involves is virtual ob-jects problem about "accurate registration, efficient creation". In this paper, we pro-pose a novel integrated mixed-reality3D authoring tool with spatial consistency. To achieve spatial consistency, hybrid features mixing the natural features and known marked features are employed for SfM(Structure from Motion) computations. To sup-port high efficiency virtual object creation and manual registration, the proposed au-thoring tool is integrated into a commercial package for3D digital content creation. Technical details are given and the experimental results show that the proposed au-thoring tool archives the goal of high-efficiency model creation and accurate registra-tion. 2. Light consistency:light consistency is an important factor to augment the re-ality of rendering virtual objects. Because the light of the reality is too complex, we cannot automatic extraction the light. This paper through the perception rendering way to solve the illumination uniformity. Based on the research of the theory of human perception, this paper summarizes the virtual objects and the real object of between three interaction. These three interaction is depth suggests, light effect and mutual movement. Through the performance of the three big interaction, we let the observers in cognitive identity perception rendering mode. This paper puts forward the clever idea of "Ghost Object" to construct the bridge of the virtual world and the real world. Through the introduction of the "Ghost Object"’, then use of GPU "more Pass" render-ing process to realize the good of the virtual-real fusion.
Keywords/Search Tags:augmented reality, authoring tool, spatial consistency, software integra-tion, perception render, ghost object, virtual-real fusion
PDF Full Text Request
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