机载测绘图像压缩存储系统设计
发布时间：2018-11-07 18:23
【摘要】：无人机测绘是遥感领域用于地形测绘的新兴技术，其具有机动灵活、高效快速、精细准确、成本较低的特点。近年来，随着通信技术和传感器技术的不断发展，无人机测绘系统也日渐成熟，，在测绘领域发挥着愈加重要的作用。但随着测绘图像分辨率提高，测绘任务增多，测绘图像的数据量在不断扩大。因此，高效可靠的图像压缩存储系统的研制具有至关重要的现实意义。 本文针对某测绘无人机中测绘图像压缩存储系统的研制任务要求，以FPGA为主要控制器件，完成了整个图像压缩存储系统的设计。文中首先介绍了该系统所采用的图像压缩算法(SPIHT算法)和存储设备(CF卡)，并将算法压缩存储性能与其他算法以及将设备与其他存储设备进行了简单对比。然后，在此基础上实现了该系统的FPGA逻辑设计，并给出了系统的测试结果。该系统功能和性能均满足任务要求，现已应用于相关的机载平台。
[Abstract]:Unmanned aerial vehicle (UAV) mapping is a new technology in the field of remote sensing, which has the characteristics of flexibility, high efficiency, high speed, precision and low cost. In recent years, with the development of communication technology and sensor technology, UAV surveying and mapping system is becoming more and more mature, which plays an increasingly important role in the field of surveying and mapping. However, with the improvement of the resolution of surveying and mapping image and the increase of surveying and mapping tasks, the amount of surveying and mapping image data is expanding. Therefore, the development of efficient and reliable image compression storage system is of vital practical significance. According to the research and development task of the image compression storage system in a surveying and mapping UAV, the design of the whole image compression storage system is completed with FPGA as the main controller. In this paper, the image compression algorithm (SPIHT algorithm) and storage device (CF card) used in the system are introduced, and the compression storage performance of the algorithm is compared with other algorithms, and the device is compared with other storage devices. Then, the FPGA logic design of the system is realized, and the test results are given. The function and performance of the system meet the requirements of the mission, and have been applied to the relevant airborne platform.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P231;TP391.41
本文编号：2317208
[Abstract]:Unmanned aerial vehicle (UAV) mapping is a new technology in the field of remote sensing, which has the characteristics of flexibility, high efficiency, high speed, precision and low cost. In recent years, with the development of communication technology and sensor technology, UAV surveying and mapping system is becoming more and more mature, which plays an increasingly important role in the field of surveying and mapping. However, with the improvement of the resolution of surveying and mapping image and the increase of surveying and mapping tasks, the amount of surveying and mapping image data is expanding. Therefore, the development of efficient and reliable image compression storage system is of vital practical significance. According to the research and development task of the image compression storage system in a surveying and mapping UAV, the design of the whole image compression storage system is completed with FPGA as the main controller. In this paper, the image compression algorithm (SPIHT algorithm) and storage device (CF card) used in the system are introduced, and the compression storage performance of the algorithm is compared with other algorithms, and the device is compared with other storage devices. Then, the FPGA logic design of the system is realized, and the test results are given. The function and performance of the system meet the requirements of the mission, and have been applied to the relevant airborne platform.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P231;TP391.41
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本文编号：2317208
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