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The paper presents a method to reconstruct a controllable 3D head and face model for a specific person. The 3D grid-muscle head and face model of the certain person is created after selecting key feature points from a front face photo and a left side face photo of the person, deforming the grid points and muscle vectors of a basic model. Then after texture mapping, we reconstruct the special person's...
Aiming at the inducement mechanism problem of the landslide instability of reservoir banks, the 3D method is used to resolve it with an instance in the Three Gorges reservoir. First of all, by the detailed analysis to the internal and external conditions of the landslide, the critical factors to the stability were summarized, including the anterior part and the reservoir water effect. And then, the...
In this paper, we estimate the geometric characteristics, such as the relation of edges and the angle characteristics between edges, from single view. And we also use the prior knowledge about objects, such as the feature of edges and the geometry construction of objects, to construct the variable constraint based on the projection rules. In this paper, we transfer the problem of interpretation of...
Relevance feedback (RF) proved an effect way to improve the precision and recall of 3D model retrieval. Unfortunately, through existing methods of RF, it is straightforward to find out whether a model is similar or not, but it is impossible to find out which local part is similar or not. The new partial method of RF proposed in this paper provides a good solution, in which not only the similar models...
The platform of quick development of mobile 3D game can be used to reduce the mobile 3d phone games' develop-cycle. With this platform, the developers can break out of the complexity of programming. Thus more efforts will be putted into enriching contents of the game itself. The core of the platform of quick development of mobile 3D game is the ability of configuration, which can be divided into the...
Research into texture synthesis is normally concerned with generation of 2D images of texture. However, real-world surface textures comprise rough surface geometry and various reflectance properties. These surface textures are different from 2D still texture as their images can therefore vary dramatically with illumination directions. This paper presents a simple framework for 3D surface texture synthesis...
To solve the problem of global calibration for multi-binocular vision sensor in a wide measuring range, a method based on 1D target is presented. The 1D target is only required to be put in a number of proper positions between two vision sensors so that one sensor can observe one end feature point and the other sensor can observe the other end point. These two sensors need not to have common vision...
Image segmentation is an essential and important part in medical image processing. Conventional methods typically demand significant amounts of time and don??t lend to a natural interaction scheme with 3D volume. In this paper we present a novel interactive method for fuzzy connectedness segmentation. In our approach, the user freely specifies a seed point 3D location at regions of interest directly...
The establishment of the likelihood model of state observation with a strong robustness is one of the core issues in the study of moving hand tracking. This paper is dedicated to building a robust likelihood model of state observation, and do some study by using the method of gaining feature points from frame images of human hand. Firstly, based on physiological models and camera projection principle,...
3D reconstruction has a long history, few workable reconstruction systems are available although many magnificent theories and algorithms are reported in literature. In this paper, a 3D reconstruction system for indoor scenes with a rotating platform is reported, including its key components such as system calibration, feature matching and 3D reconstruction. Experimental results show that this system...
In this paper, we present a novel method to reconstruct the large scale scenes from multiple calibrated images. It first generates a quasi-dense 3D point cloud of the scene by matching key points across images. Then it builds a tetrahedral decomposition of space by computing the 3D Delaunay triangulation of the 3D point set. Finally, a triangular mesh of the scene is extracted by labeling Delaunay...
Human hand gesture features extraction from the frame image sequences is one of the key jobs in the process of human hand tracking based upon particle filtering (PF), because it provides PF with key data for computing the weight value of a particle. In order to satisfy the need of real time human hand tracking, a novel features extraction approach, aimed at optimization of processing speed, is put...
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