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.
At present, the camera with high resolution has been widely used. However, it is not accurate for the above camera to use the traditional computer vision method for calibration. So, a method for camera calibration in photogrametry is referred to, and the comparison of the coordinate system, parameter definitions and the camera model between in photogrametry and in computer vision is presented. Thus,...
According to the characteristic of welding container reinforced plate and structured-light measurement theory, this paper designs an initial position locating system for container welding robot, which uses a calibration method of one CCD and lasers based on fixed in workspace vision and a sub-pixel feature extraction method of welding seam. This system with fixed image resolution can acquire the image...
There are two steps in using 3D computer vision to extract metric information from 2D images. Camera calibration is the first step, and this paper analyses and compares the three popular calibration methods: typical linear calibration, Tsaipsilas two-stage calibration and Zhangpsilas planar pattern calibration by measuring the position of space points. It is concluded that Zhangpsilas method has the...
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.