The capability of IRS-1C mission of ISRO to acquire imagery of Earth’s surface from multiple orbits to form a stereo pair creates a possibility to recreate the terrain topography and to indulge in digital topographic mapping from space borne line scanner imagery. The scientific exercises leading to use of IRS-1C stereo imagery, specifically development of algorithms and software for assimilating orbit and attitude data sets in photogrammetric relations are summarized in this review paper. Further developments in this direction attributed to conceptualization, design and operational exploitation of Cartosat-1 as a dedicated cartography mission are summarized. A number of technologies like stereo strip triangulation for working with long strips, parametric modeling of image to ground relations through rational polynomial coefficients and for obtaining relative undulations without the use of ground control points developed for Cartosat-1 and other missions of Cartosat series are summarized. Brief description of some large scale operational solutions for extracting three-dimensional elevation model from Cartosat-1 data like CartoDEM, SAPHIRE, Karnataka GIS framework is provided. Some future possibilities are explored.

中文翻译：

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从印度星载线扫描仪图像数字测绘的发展：IRS-1C 到 Cartosats

ISRO 的 IRS-1C 任务从多个轨道获取地球表面图像以形成立体对的能力创造了重新创建地形地形和沉迷于来自星载线扫描仪图像的数字地形图的可能性。本综述总结了导致使用 IRS-1C 立体图像的科学练习，特别是用于在摄影测量关系中同化轨道和姿态数据集的算法和软件的开发。总结了 Cartosat-1 作为专用制图任务的概念化、设计和操作开发在这个方向上的进一步发展。许多技术，例如用于处理长条带的立体条带三角测量，总结了通过有理多项式系数对图像与地面关系进行参数化建模，并在不使用为 Cartosat-1 和 Cartosat 系列的其他任务开发的地面控制点的情况下获得相对起伏。提供了从 CartoDEM、SAPHIRE、Karnataka GIS 框架等 Cartosat-1 数据中提取三维高程模型的一些大规模操作解决方案的简要描述。探索了一些未来的可能性。