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首页> 外文会议>Annual Symposium on Quantitative Nondestructive Evaluation; 19980719-24; Snowbird,UT(US) >APPLICATION OF DIFFERENTIAL GLOBAL POSITIONING SYSTEM (DGPS) INDEXING TO REMOTE SENSING PHOTOGRAMMETRY
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APPLICATION OF DIFFERENTIAL GLOBAL POSITIONING SYSTEM (DGPS) INDEXING TO REMOTE SENSING PHOTOGRAMMETRY

机译：差分全球定位系统（DGPS）索引在遥感照相中的应用

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The first flight was achieved in June of 1998 with a second identical flight planned for late November of 1998 after the leaves have fallen. Follow-on flight are planned by the Iowa State University engineering students working on Aerial Integrated Platform (AIP) senior projects. Their flights will involve automated film exposure and visual computer graphic aids for the pilot. The film for the first flight was digitized directly from the negatives. Positive prints were also made at a magnification of 11x to compare digital images with printed images. The digitization technique preserved at least 90% of the information available from the film and is considered adequate for creation of a calibrated database mosaic digital image. Three points from each image must be determined and used to scale and overlay the 110 individual images onto a geo-referenced grid. Once the final database digital image is created, additional calibration points (light sources) will be measured on the ground. A least squares fit of these calibration points will result in a final database digital image of calibrated luminosity.
机译：第一次飞行是在1998年6月完成的，第二次相同的飞行计划在叶子掉落后于1998年11月下旬进行。爱荷华州立大学的工程专业学生计划进行后续飞行，他们从事空中综合平台（AIP）高级项目。他们的飞行将包括为飞行员提供自动胶片曝光和视觉计算机图形辅助工具。第一次飞行的电影直接从底片上数字化。还以11倍的放大倍数进行正片打印，以比较数字图像和打印图像。数字技术保留了至少90％的胶片信息，并被认为足以创建校准的数据库镶嵌数字图像。必须确定每个图像的三个点，并将它们用于将110张单独的图像缩放并覆盖到地理参考网格上。创建最终数据库数字图像后，将在地面上测量其他校准点（光源）。这些校准点的最小二乘拟合将产生校准后的光度的最终数据库数字图像。

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