Hayabusa2的ONC图像捆绑调整与瑞顾的受控彩色镶嵌图
Bundle adjustment of Hayabusa2's ONC images and controlled color mosaic map of Ryugu
AI总结：
Hayabusa2任务通过捆绑调整优化ONC图像几何，生成瑞顾的全球和区域彩色镶嵌图，为科学研究提供高精度图像和地图数据。
摘要：
日本宇宙航空研究开发机构（JAXA）的Hayabusa2任务于2020年12月成功从小行星瑞顾返回样本。该任务执行了两次着陆，以收集表面和地下材料，其中一次靠近由人工撞击器制造的撞击坑附近。 onboard摄像头系统，光学导航摄像头（ONC），包含两个广角摄像头和一个窄角摄像头，配备七个颜色滤光片，对于导航和科学观测中的地貌和组成（如含水矿物）的测绘至关重要。超过8,300张图像揭示了瑞顾的纺锤形和被岩石覆盖的表面。然而，大多数在下降/着陆操作期间拍摄的高分辨率图像缺乏精确的位置数据和摄像头位置/方向信息。通过摄影测量捆绑调整方法对图像几何进行了细化。该方法使在下降/着陆操作期间拍摄的所有高分辨率图像得以细化。此外，以GIS格式包含地理元数据的图项目射GeoTIFF图像被创建用于所有ONC图像，并且这些图像被整合以构建全球和区域镶嵌图。为了促进对瑞顾的科学研究，这些细化的图像几何信息、地图和镶嵌图通过https://doi.org/10.7910/DVN/WW3IH0公开可用。
英文摘要：
JAXA's Hayabusa2 mission successfully returned samples from the asteroid Ryugu in December 2020. It executed two touchdowns to collect the surface and subsurface materials, one close to the crater created by an artificial impactor. The onboard camera system, Optical Navigation Camera (ONC), with two wide-angle cameras and one narrow-angle camera with seven color filters, was crucial for mapping geomorphology and composition such as hydrated minerals during navigation and scientific observation. More than 8,300 images revealed Ryugu's spinning-top shape and boulder-covered surface. However, most high-resolution images captured during descent/touchdown operations lacked precise location data and camera position/orientation information. Image geometry was refined using photogrammetric bundle adjustment. This method enabled the refinement of all high-resolution images captured during descent/touchdown operations. Furthermore, map-projected GeoTIFF images in GIS format containing geographic metadata were created for all ONC images, and these were integrated to construct global and regional mosaic maps. To facilitate scientific research on Ryugu, these refined image geometry information, maps, and mosaics are publicly available via https://doi.org/10.7910/DVN/WW3IH0
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
