| GPU协同处理在全景视频生成系统中的应用 |
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| 引用本文： | 彭勃,张磊,王广生.GPU协同处理在全景视频生成系统中的应用[J].国外电子测量技术,2009,28(5):78-82. |
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| 作者姓名： | 彭勃 张磊 王广生 |
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| 作者单位： | 北京工业大学电子信息与控制工程学院,北京,100124 |
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| 摘 要： | 为了解决全景视频生成系统中的速度瓶颈，讨论了一种基于显卡硬件加速的全景视频生成方法，该方法将显卡中的图形处理器（graphic processing unit，GPU）作为CPU的协处理器，充分发挥GPU强大的图形处理能力，协助CPU处理那些运算量巨大的图像处理任务，如白平衡和透视变换处理等，从而将CPU从繁重的图像处理工作中解放出来，并在很大程度上提高全景视频的生成效率，使之达到实时的生成效果。这一GPU协同处理的全景视频生成架构已在一台全景摄像机系统样机上实现，并能够实时地生成360°的全景视频，表明该全景视频生成架构在工程上具有可行性。
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| 关 键 词： | 全景视频 图形处理器 GPU通用计算 全景视频生成架构 |
Application of GPU assisted processing on panoramic video generating system |
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| Peng Bo,Zhang Lei,Wang Guangsheng.Application of GPU assisted processing on panoramic video generating system[J].Foreign Electronic Measurement Technology,2009,28(5):78-82. |
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| Authors: | Peng Bo Zhang Lei Wang Guangsheng |
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| Affiliation: | (College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100124, China) |
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| Abstract: | The purpose of this paper is to resolve the speed bottleneck in panoramic video generating system. This paper introduces a panoramic video generating method based on video card hardware acceleration, which takes GPU as CPU＇s coprocessor. By this method, users can take full advantage of the powerful graphic processing ability of GPU and make it cooperate with CPU to deal with those complicated graphic processing task, such as white balance and perspective trans-formation, and release CPU from heavy work of graphic processing. This method can greatly improve the panoramic video generating efficiency and achieve a real time effect when generating panoramic video. This architecture of GPU assisted processing has come true in a panoramic camera with the capability to create a panoramic video of 360 degree around in a real time, indicating that this architecture is viable on project. |
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| Keywords: | panoramic video graphic processing unit general purpose computation on the GPU panoramic video generating architecture |
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