| 基于FPGA的全景图像处理系统SDRAM控制器设计与实现 |
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| 引用本文： | 陆军,高乐,刘涛,朱齐丹. 基于FPGA的全景图像处理系统SDRAM控制器设计与实现[J]. 应用科技, 2012, 39(1): 55-60 |
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| 作者姓名： | 陆军 高乐 刘涛 朱齐丹 |
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| 作者单位： | 哈尔滨工程大学自动化学院,黑龙江哈尔滨,150001 |
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| 摘 要： | 在对高分辨率折反射全景图像的快速采集处理中,同步动态随机存储器（SDRAM）作为重要的数据缓存器件,对于其正确的控制关系到整个系统能否正常工作.在分析了SDRAM各项参数及其工作原理的基础上,设计了基于FPGA的双SDRAM控制器,在乒乓缓存模式下轮流采集图像,完成了分辨率2048 dpi×2048 dpi、每秒15帧的CameraLink接口的全景图像的实时采集、缓存解算,以及以1024 dpi×768 dpi的分辨率进行实时显示.
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| 关 键 词： | 图像处理 折反射全景 FPGA SDRAM控制器 乒乓缓存 CameraLink接口 |
Design and realization of the SDRAM controller in an embedded panoramic image processing system based on FPGA |
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| LU Jun , GAO Le , LIU Tao , ZHU Qidan. Design and realization of the SDRAM controller in an embedded panoramic image processing system based on FPGA[J]. Applied Science and Technology, 2012, 39(1): 55-60 |
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| Authors: | LU Jun GAO Le LIU Tao ZHU Qidan |
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| Affiliation: | College of Automation, Harbin Engineering University, Harbin 150001, China |
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| Abstract: | For the rapid acquiring and processing of the high-resolution catadioptric panoramic images, synchronous dynamic random access memory （SDRAM） is an important device of data cache. The correct control for it affects whether the whole system can work properly. A design of dual-SDRAM controller based on field programmable gate array （FPGA） was proposed by analyzing the SDRAM parameters and the principle of operation. In Ping-Pong mode, the system can collect images by turns and thereby accomplish real-time panoramic image acquisition, buffeting and resolving with 2048 dpix2048 dpi, 15fps, based on camera Link interface. The system also can accomplish real-time display with 1024 dpi × 768 dpi. |
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| Keywords: | image processing catadioptric panorama FPGA SDRAM controller Ping-Pong cache camera link interface |
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