The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Global localization of a planetary-exploration rover in the absence of a satellite-based global positioning system (GPS) is still an open problem. Although a satellite network is not available for localization around any near-term exploration targets, topographic maps derived from satellite imagery are available. This has spurred the development of several algorithms that perform global localization...
Current rover localization techniques such as visual odometry have proven to be very effective on short to medium-length traverses (e.g., up to a few kilometres). This paper deals with the problem of long-range rover localization (e.g., 10km and up). An autonomous method to globally localize a rover is proposed by matching features detected from a 3D orbital elevation map and rover-based 3D lidar...
Camera calibration is a necessary step in using 3D computer vision to extract metric information from 2D images. Based on the positioning theory of the linear-structured-light, this paper analyses and compares the three popular calibration methods: typical linear calibration, Tsai’s two-stage calibration and Zhang’s planar pattern calibration in the aspects of referenced objects, arithmetic and precision...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.