world coordinates

world coordinates

[′wərld kō′ȯrd·ən·əts]
(control systems)
A robotic coordinate system that is fixed with respect to the Earth.
References in periodicals archive ?
We propose a novel eye tracking method that can estimate 3D world coordinates using an infrared (IR) stereo camera for indoor and outdoor environments.
We are happy that despite holding the status of one of the world's leaders, China is building equal and respectful relations will all the countries despite the place they occupy in the world coordinates, the chairman of the House of Representatives said.
In hypothesis generating process, we can obtain candidate target distance, angle, speed, and other pieces of information by radar and then get the world coordinates of the candidate target, on the basis of an inverse, the camera calibration principle; we obtain conversions relationship between the world coordinates and image pixel coordinates, initially identified region of candidate targets on the image, namely, the region of interest (ROI).
T] is a point in the world coordinates, namely, the lateral, vertical, and longitudinal positions, respectively; [u.
This point is now available in world coordinates (x, y) and corresponds to the shown in the image representing the bird view extraction.
Here the coordinates of respective landmarks are shown in world coordinates.
Most often, people are the most interested in what the pipe looks like relative to real world coordinates.
These maps did not reference any real world coordinates.
For any vision applications where more accurate 3D world coordinates should be determined from their 2D image coordinate, the camera calibration with higher accuracy must be obtained first [3].
Following the NSSDA guidelines, GDT uses a series of field-collected, differentially corrected GPS test points to measure against corresponding points in the database to determine the difference between database and real world coordinates.
Scale factors are necessary to make the conversion from 2D image coordinates to 3D world coordinates (Fig.
The remainder of this paper is organized as follows: Section 2 presents the camera model and explains how to build the relationship between the image and world coordinates.
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