Ximing He
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View article: A progressive ellipse key feature detection framework for Chang’e-6 sampling task
A progressive ellipse key feature detection framework for Chang’e-6 sampling task Open
View article: Localization and Surface Characterization by Zhurong Mars Rover at Utopia Planitia
Localization and Surface Characterization by Zhurong Mars Rover at Utopia Planitia Open
China’s first Mars rover, Zhurong, has successfully touched down on the southern Utopia Planitia of Mars at 109.925° E, 25.066° N, and since performed cooperative multiscale investigations with the Tianwen-1 orbiter. Here we present primar…
View article: Visual Localization of the Tianwen-1 Lander Using Orbital, Descent and Rover Images
Visual Localization of the Tianwen-1 Lander Using Orbital, Descent and Rover Images Open
Tianwen-1, China’s first Mars exploration mission, was successfully landed in the southern part of Utopia Planitia on 15 May 2021 (UTC+8). Timely and accurately determining the landing location is critical for the subsequent mission operat…
View article: Location and Accuracy Validation of Lunar Landing Point Based on Multi-source Images
Location and Accuracy Validation of Lunar Landing Point Based on Multi-source Images Open
High-precision positioning of the landing site is a critical step in the mission and an important prerequisite for surface operations of the lander and rover. In this paper, a high-precision positioning method of the landing site was desig…
View article: Location and Accuracy Validation of Lunar Landing Point Based on Multi-source Imagesormalsize
Location and Accuracy Validation of Lunar Landing Point Based on Multi-source Imagesormalsize Open
探测器月面着陆点高精度定位是探测器着陆的重要技术环节，也是地外天体探测器开展各项工作的重要前提.本文基于多源图像数据，利用图像特征匹配和多重覆盖影像定位技术，设计了探测器月面着陆点高精度定位方法，并使用嫦娥三号任务相关影像进行了定位实验与精度验证.在高精度图像匹配和几何变换的基础上，降落相机序列影像间的匹配精度达到子像素，LRO NAC影像与中分辨率降落图像的匹配精度优于1pixel，最终解算的嫦娥三号探测器着陆点坐标为（44.1196°N，19.5148°W）.本文方法综…