This is because in Vlaminck's method [24] using RANSAC algorithm to segment plane and ground plane must be well identified in order to rotate the point cloud based on normal vector of detected ground plane then detect obstacle.
Open image in new window Fig. 7 Normal vector estimation: a normal vector of the center point is calculated by a cross product of two vectors of four neighbor points (in red); b normal vector estimation of a scene Open image in new window Fig. 8 Plane segmentation and ground and wall detection results: a point cloud; b segmented planes; c detected ground (in blue) and wall planes (in red).
The airlines could improve the current system by investing more money in planes and staff, reducing the number of segments each plane flies in a given day, and increasing the number of direct flights.
Next after segmenting the curve skeleton into non-branching segments, orthogonal planes to the curve skeleton segments, at preset or adaptive intervals, make slices through the surface mesh edges.
Many engineering objects consists mostly of simple surfaces (segments of planes, cylinders, cones, tori and spheres) except for the blending surfaces, which require true free-form surfaces.
A secondary consequence of this may also be the reduced pelvic segment coronal plane motion seen in the present study as the higher abduction muscle activity may reduce the pelvic drop on the non-supported side.
This was then used to compute the rotation of the shank segment marker plane required for placement of the ankle joint centre along a line between the malleoli in the dynamic trial data.
However, depending on the orientation of the ICAs to be segmented, the planes that need aligning differ, e.g., the alignment of the head to the ACPC axis is unnecessary when delineating sagittal ICAs.
Military radar could show the movements of large segments of a plane that had suffered a catastrophic breakup, Gleave said.
Now consider the effect produced by projecting these line segments onto another plane as shown in the figure.
