Fengquan Zhang

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— One of the important but often overlooked challenges in motion control has to do with the transfer of theoretical tools into software that will allow an autonomous system to interact effectively with the physical world. In a situation familiar to most control practitioners, motion control programs are often machine-specific and are not reusable, even when(More)
In this paper, we present a Smoothed Particles Hydrodynamics(SPH) implementation algorithm on Multi-GPU which is used for physics-based interactive fluid animations by the parallel framework. We employ the SPH method of a particle-based pure Lagrangian approach to discretize Navier-Stockes equation for diverse fluid animations. In order to simulate the(More)
We present a modified feature point descriptor (M-BRIEF) based on Binary Robust Independent Elementary Features (BRIEF). BRIEF is much faster both to build and to match than SIFT and SURF, and it yields a better recognition as well. However, the matching results are not robust when the viewpoint changes obviously. In our paper, M-BRIEF automatically adjusts(More)
In this paper, we design and implement an effective framework for interaction simulation based on real shadows and virtual shadows. Within the specified depth range, we firstly identify different physical objects with the method of HSV. And then in order to get the position of interaction tool, we use central moment to find the centroid of the physical(More)
Consistent illumination is an important research target in the augmented reality system. In this paper, an efficient illumination method is implemented to solve the consistent illumination problem for mixed reality application. We design and implement an all-frequency environment rendering methods based on wavelet transform, and proposed an accelerated(More)
In this paper, we implement a new interaction method for the application of augmented reality using ARToolKit and OpenCV SDK. First, on the basis of the exiting marker-based tracking system, this paper achieved the multi-marker tracking that solved the tracking failure problem when the single marker is partially occluded, which greatly improves the(More)
In the system of cloth simulation, the process of cloth deformation together with the method of self-collision detection have great significance on how to simulate cloth deformation fast and realistic on computer. In this paper, we present a novel contour test based on the star-shaped property of a polygon, the central data structure for efficient execution(More)
Continuous Collision Detection (CCD) between deforming triangle mesh elements in 3D is significant in many computer and graphics applications, such as virtual surgery, simulation and animation. Although CCD is more accurate than discrete methods, its application is limited mainly due to its time-consuming nature. To accelerate computation, we present an(More)
The rendering algorithm for low-frequency environment lighting, when applied in virtual object rendering, has limitations such as low accuracy. In this paper, we propose an efficient all-frequency environment rendering method based on the triple product wavelet integrals framework, which use radiance measuring the environment lighting intensity. In the(More)