This is because of the elastic energy: A square oriented with sides perpendicular to the 〈10〉 directions has a lower elastic energy than a circle for given material parameters. However, the interfacial energy term diverges at a sharp corner, so an intermediate shape that is square-like but ...
The proposed peeling-induced shape morphing is applicable to most materials capable of plastic deformation and other complex systems like plastic-elastomer bilayer films with responsive materials for 4D structures (i.e., responsive 3D structures), which could open new avenues in 3D and 4D devices. ...
In most studies of figure-ground segmentation, however, 'flat'or 2D figures are used; no variance of depth within each figure. The objective of this work is to study whether the roles of convexity and concavity are still maintained with 'curved'or 3D surfaces as figures. 3D surfaces are ...
Moreover, a hand gesture recognition method with both high accuracy and efficiency is required. In this paper, we propose a new hand gesture recognition method, 3D shape context (3D-SC), which sufficiently utilizes both the local and global 3D information of hand gestures. The proposed method ...
Comparison of the value for AR 5 0.5 with that for AR 5 2.0 best tests the slow light effect, since most of the other factors such as the laser tail effect are absent for a rotated sample. Also for this reason, to elucidate a pure shape effect, it is better to compare the AR 5 ...
The paper describes with details this process which can be applied whatever the method used to extract the road sides in the image. We have obtained many results on several kinds of roads. The most significant are presented here to illustrate the method 展开 关键词:...
3D and Other Geometry Types Most shapefiles store conventional 2D points, lines, or polygons. But the shapefile format is also capable of storing various other types of geometries as well, including complex 3D surfaces and objects. Shapefiles with measurement (M) values Measured shape types are...
However, most of the above efforts often exhibit inflexible behavior with very few degrees of freedom. They do not consider methods of how to adjust the position and shape of designed developable surfaces. Once the developable surfaces are generated, it is very difficult to adjust their position ...
sides of the object and minimize the variation between a 2D projection and its 3D counterpart. The curve segments are then assembled into a set of closed curves (Fig. 1(b)), whose 3D counterparts are computed to allow the user to inspect the 3D shape to be reconstructed. The user can ...
For Kevin’s feathers, the technical directors used one Ri curve for the quills, with hundreds more coming off the sides to produce each barb. “For Finding Nemo, we modeled feathers using wide hair or a single piece of geometry with a clever shader,” May points out. “For Kevin, we ...