论文标题
用于确定精确几何形状的图像处理
Image processing for precise geometry determination
论文作者
论文摘要
可靠的空间信息可能很难在行星遥感应用中获得，因为使用空间探针拍摄的图像元数据中存在错误。我们设计了一条管道，以解决木星月球欧罗巴的磁盘分辨图像，以New Horizons的远程侦察成像仪，伽利略的固态成像仪和Voyager的成像科学子系统拍摄。我们通过将它们与相同的参考进行比较来纠正航天器位置的错误，指向和目标的态度。我们还讨论了在考虑任何元数据之前纠正失真的方法。最后，我们提出了一种矢量化方法，以有效地将图像像素像素在椭圆目标上投射，并计算每个截距点的观察点的坐标和几何形状。
Reliable spatial information can be difficult to obtain in planetary remote sensing applications because of errors present in the metadata of images taken with space probes. We have designed a pipeline to address this problem on disk-resolved images of Jupiter's moon Europa taken with New Horizons' LOng Range Reconnaissance Imager, Galileo's Solid State Imager and Voyager's Imaging Science Subsystem. We correct for errors in the spacecraft position, pointing and the target's attitude by comparing them to the same reference. We also address ways to correct for distortion prior to any metadata consideration. Finally, we propose a vectorized method to efficiently project images pixels onto an elliptic target and compute the coordinates and geometry of observation at each intercept point.
