ERDAS IMAGINE和像素工厂在影像投影转换中的比较研究

Compare Research of Image Projection Conversion in ERDAS IMAGINE and Pixel Factories

随着遥感技术的飞速发展,多源空间数据应用越发广泛。由于不同数据源带来的数据之间坐标系统、数据格式、精度指标等差异,制约了多源影像数据的融合应用。因此,利用一定的数学方法,将不同坐标系统的影像相互转换变得尤为重要。本文针对多源影像数据坐标系统不统一、影响应用效率的问题,分别利用ERDAS IMAGINE软件和像素工厂软件进行坐标系统转换分析及实验,并利用外业控制点对转换后的成果进行精度验证,总结了ERDAS IMAGINE软件和像素工厂软件在数字正射影像坐标系统转换中的优缺点,为多源影像融合应用提供参考。

With the rapid development of remote sensing technology, the application of multi-source spatial data is more and more extensive. Because of the differences among data sources, such as coordinate system, data format and precision index, the fusion application of multi-source image data is restricted. Therefore, it is very important to transform the images of different coordinate systems by using certain mathematical methods. This paper aims at the problem that the multi-source image data coordinate system is not unified and affect application efficiency. Using ERDAS IMAGING and pixel factory to analysis and experiment of coordinate system conversion respectively, and use control points to verify the accuracy of external industry. Summarizes the advantages and disadvantages in digital orthophoto map coordinate system conversion of ERDAS IMAGING and pixel factory, provides a reference for multi-source image fusion application.