关键词: 全景高清鱼眼视频实时校正, 嵌入式中央处理器-图形处理器（CPU-GPU）, 线性等距球面透视投影, 纹理映射

Abstract: In the field of security video surveillance, real-time monitoring system is needed to achieve real-time monitoring for 360°×180° wide panoramic areas with high definition, existing fish-eye correction systems have higher cost, poor flexibility, especially low definition and poor real-time problems, etc. In order to solve real-time problems, this article proposes CPU-GPU high-speed communication protocol based on embedded platform STiH418 and CPU-GPU memory sharing method based on programming shader, and achieves HD panoramic fisheye video real-time correction system on CPU-GPU using texture mapping technology. Compares with the related correction system, experimental results show that the system takes good algorithm efficiency, effectiveness and integrity of corrected image, can fully meet the HD pano-
ramic 360°×180°（4 million pixels, 2048×2048p30） in real-time correction, embedded systems STiH418 reduce overall system cost compared with PC, correction MAP is generated and updated by ARM CPU in software, virtual PTZ improves system flexibility and stability, so the system has a high practical value in security video surveillance market.

Key words: panoramic High Definition（HD） fisheye video real-time correction, embedded Central Processing Unit-Graphic Processing Unit（CPU-GPU）, linear equidistant spherical perspective projection, texture mapping