| 通用加速计算在环幕失真校正中的应用研究 |
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| 引用本文： | 张立民,邓向阳,赵瑞行. 通用加速计算在环幕失真校正中的应用研究[J]. 海军航空工程学院学报, 2008, 23(3): 261-265 |
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| 作者姓名： | 张立民 邓向阳 赵瑞行 |
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| 作者单位： | 海军航空工程学院,电子信息工程系,山东,烟台,264001;天津大学,电子信息工程学院,天津300072;海军航空工程学院,研究生管理大队,山东,烟台,264001;91206部队,山东,青岛,266108 |
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| 摘 要： | 大规模场景的沉浸式投影系统大都以环幕作为显示设备，而由环幕造成的几何失真使系统真实感大大降低。从环幕产生失真的几何原理出发，通过建立投影平面和成像面之间的坐标映射关系，生成了一种几何失真校正的理论模型。同时，研究了一种适于通用加速计算的图形硬件架构CUDA，基于其多线程的硬件执行机制，通过将几何失真的校正矩阵组织成纹理进行多重纹理贴图映射，设计了预失真校正的硬件加速算法，该算法还利用基于权值的超采样技术对加速中的走样进行了设计。最后，对该方法的校正效率和效果进行了实验验证，证明该方法具有更高的场景交互速度和很好的校正效果。
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| 关 键 词： | 通用计算 多投影系统 失真校正 硬件加速 |
Research on General Acceleration Computation Applied in Distortion Correction |
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| ZHANG Li-min,DENG Xiang-yang and ZHAO Rui-xing. Research on General Acceleration Computation Applied in Distortion Correction[J]. Journal of Naval Aeronautical Engineering Institute, 2008, 23(3): 261-265 |
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| Authors: | ZHANG Li-min DENG Xiang-yang ZHAO Rui-xing |
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| Affiliation: | ZHANG Li-min1a,2,DENG Xiang-yang1b,ZHAO Rui-xing3(1.Naval Aeronautical , Astronautical University a.Department of Electronic , Information Engineering,b.Graduate Students' Brigade,Yantai Sh,ong 264001,China,2.School of Electronic , Information Engineering,Tianjin University,Tianjin 300072,3.The 91206th Unit of PLA,Qingdao Sh,ong 266108,China) |
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| Abstract: | In large multi-projector display system,because of the nonlinear geometrical distortion,it will lose the quality of immersion.According to the geometric principle of distortion,the coordinate-mapping relation between the projecting surface and imaging surface was deduced,and the theoretical model based on geometric distortion correction was generated.Moreover,new hardware-implementation architecture was well researched,which was based on multi-thread mechanism.An algorithm used in hardware acceleration was ... |
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| Keywords: | general computation multi-projector system distortion correction GPU acceleration |
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