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As a kind of novel porous structure with high strength relative to low mass, lattice structure infilling can attain a lightweight structure while maintaining the high specific mechanical properties in the 3D solid structures. Focusing on the deficiency of the non-optimized macro-material distribution in the traditional lattice infilling, a design and modeling method of variable-density 3D lattice...
Graph kernels are powerful tools for structural analysis in computer vision. Unfortunately, most existing state-of-the-art graph kernels ignore the locational or structural correspondence information between graphs, based on the visual background. This drawback influences the performance of existing kernels for computer vision based classification problems, e.g., classification of shapes, point clouds...
Nowadays, with the development of Internet technology and the improvement of safety awareness, image encryption technique has become very important, especially for color image encryption. The direction of research is focused on the RGB color space. There are few researches in other color spaces, such as HSV, L∗a∗b∗, YCbCr. In this paper, we propose a color image encryption method in YCbCr color space...
A depth map generally can be divided into the region with sharp edges and the region consisting of nearly constant or slowly varying samples. In this paper, in order to investigate how the distortion in the two regions affect the perceived 3D quality of synthesized stereopairs, a dataset is first built based on distinctive coding for two regions, and then a subjective test is conducted. Based on the...
In this paper, a parallel system together with a real-time workload balancing algorithm is proposed for view synthesis on multi-core platforms. First, a numerical relationship between the number of holes after warping and the workload of view synthesis is derived based on correlation analysis for the texture regions. Then, according to the location of the holes (whether they lie around an edge or...
Laparoscopic surgery is a challenging task for surgeons. The challenges include: (i) lack of depth perception, (ii) inverted motion of the hand instrument. In this paper, we investigate the possibility of using CAREX-M, a Cable-driven Arm Exoskeleton - Mobile, to train subjects using laparoscopic tool to do a simple task. CAREX-M uses an assist-as-needed controller that generates assistive force that...
In this paper, a parallel system together with an adaptive workload balancing algorithm is proposed for view synthesis on multi-core platforms. Based on system level data parallelism, an adaptive workload balancing method is proposed for depth image based rendering by evaluating the number of non-hole pixels after warping. Experimental results demonstrated that with the proposed workload balancing...
Almost all researches are carried out in two-dimensional space in the field of meteorology. However these researches are in lack of intuitive traits and have a low degree of visualization. This work is dedicated to the researches on three-dimensional reconstruction of the strong convective cell. Firstly, the contours in correlated faultage were extracted from meteorological radar base data. Then they...
Frame-compatible format, packing two neighbouring views into one frame, is considered as a promising solution for 3D distribution in the existing system. In this paper, a fast Intra encoder is designed for frame-compatible format coding based on the content similarity and proposed to reduce the computation complexity. With a relative shift, statistics analysis proves the high prediction correlation...
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