异构双核的高分辨率折反射全景高速处理系统
doi: 10.3724/SP.J.1146.2008.00133
A Heterogeneous Dual-Core High-Speed Processing System for High Resolution Catadioptric Panorama
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摘要: 为了实现对高分辨率折反射全景的快速处理，采用DSP+FPGA异构双核结构、多级乒乓缓存的数据通信机制，基于查找表技术和分块预取策略的全景图像展开算法等，开发了一个可对300万像素折反射全景进行帧速率为12fps的采集、展开并输出的嵌入式系统。系统动态可重构、易扩展、计算效率高，可应用于全景视频监控、机器人视觉等领域。Abstract: To realize the high-speed processing of high resolution catadioptric panorama, a heterogeneous dual-core embedded system based on DSP+FPGA is presented, which can do rapid capturing, unrolling and displaying of 20481536 resolution catadioptric panorama at 12fps, by using multi-level ping-pong caches, a panorama unrolling algorithm based on lookup-table method and block prefetch strategy. The system was characterized by dynamic reconfiguration and high efficiency of computation. It can be applied in panoramic surveillance and robot vision.
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