We concentrate on using perpendicular line pairs to test recognition of a parallelepiped model and represent the visible face of the object. From 2D images and point clouds, first, 3D line segments are extracted, and then intersecting lines are selected from them. By estimating the coverage ...
b) We put emphasis on the object classes in building twins that represent electrical elements (light switch, light, speaker, socket, elevator button), safety elements (emergency switch, smoke alarm, fire extinguisher, escape sign), plumbing system elements (pipe), and other objects with useful ...
The operation is not supported on datasets that are created using a beta version. static int FDO_E_DATASET_INVALID_DEFINITION The dataset has an invalid definition. static int FDO_E_DATASET_INVALID_ID The dataset has an invalid id. static int FDO_E_DATASET_INVALID_NAME The dataset name is...
A relate matrix that would therefore represent our first example of two lines that intersect on a line would be: ' 1*1***1** ' -- Identify road segments that cross on a line SELECT a.id FROM roads a, roads b WHERE a.id != b.id AND a.geom && b.geom AND ST_Relate(a.geom...
cast a ray from a portion of the user’s hand based on the position of the joint of the user’s arm and the position of the user’s hand; and responsive to the ray intersecting with one or more control points of a virtual object, indicate to the user that the virtual object is bei...
The input data for 3D reconstruction are a set of hand-drawn strokes that represent the visible parts of the model's 2D silhouette (see Figure 2a). The contour completion algorithm reconstructs the entire silhouette by finding the occluded parts of the silhouette curves as shown in Figure 2b....
In order to generate voxel-based polygons lacking 18- and 26-connected tunnels, additional voxels need to be placed within the scan-lines. Specifically, additional voxels are placed within the scan-line when a decision is made to change the depth coordinate value w, that is, during the dec...
It is to be understood that the above-described arrangements are merely illustrative of the many possible specific embodiments which can be devised to represent application of the principles of the invention. Numerous and varied other arrangements can be devised in accordance with these principles by ...
represent concrete instances of those classes that are actually detected by the analysis system. Each object is linked to a set of pixel locations whose associated pixel values are determined by the visual appearance of the object as measured by the image acquisition device....
generally used to represent the external system in describing interactions with the external system; however, this should be understood to require no more of the external system than that able to produce and receive messages as required by the process component that interacts with the external ...