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This paper presents an innovative procedure, capable to automatically generate virtual environments which are applicable to art galleries, museums or similar facilities, and suitable for web-based promotions of artists and their works. The presented system is part of the outcome of an interdisciplinary research for low-cost and platform independent solutions to combine art with virtual reality with...
A classification method of scenarios using differential/similar information among scenarios is presented. Behaviors of scenarios belonging to the same problem domain are quite similar, for example reservation of flight ticket and reservation of train ticket are similar behaviors. We derive the differential/similar information between them, and apply the differential and/or similar information to classify...
Visualization has been around for more than two decades. Various techniques have been proposed, and some have found their fitting places in many applications in documentation visualization, scientific visualization, etc. To our knowledge, no one has applied the Weibull distribution's probability density functions whose flexibility lies in their adjustable shape and scale parameters to the information...
In off-road simulation, the terrain is being modified as a result of its interaction with the vehicles. Previous methods just deal with relatively small scale terrain inputs. In this paper we describe a large scale dynamic terrain visualization method. The potentially visible portion of the terrain is cached in the form of texture arrays and is rendered from the GPU. The terrain deformation is generated...
The networking construction and management is the core technology in computer networking designs. And the main purpose of computer networking courses is also to develop students' practical abilities of networking construction and management. Currently computer networking designs become more practical and the networking construction and management techniques are also more abstract and virtual, which...
Students are poorly motivated in university ideological and political course for the complex theory and obsolete teaching method. To use the multimedia technology appropriately in the teaching of ideological and political course in university can promote students' initiative, openness and creativity and cultivate their habits of inquiry learning.
Warfare simulation needs to render a realistic virtual 3D battlefield environment efficiently to ensure the authenticity and real-time interaction. However, modeling special phenomena which are common in battlefield environment has proved difficult with the existing techniques of computer graphics. A method for special effect modeling and simulation by using particle system is proposed. Based on detailed...
Virtual Scene Technology is one of the important parts of VR systems. It takes charge of Vision issue in VR systems, and is the most important fact to affect the immersive of the system. There are many problems in training simulation of artillery reconnaissance radar, such as the battlefield environment isn't living, the load of assemble and disassemble is large, the training cost is high. The virtual...
In computation flow visualization, integration based geometric flow visualization is often used to explore the flow field structure. A typical time-varying dataset from a Computational Fluid Dynamics (CFD) simulation can easily require hundreds of gigabytes to even terabytes of storage space, which creates challenges for the consequent data-analysis tasks. This paper presents a new technique for path-lines...
A new method of B-Rep model partial matching based on topoisomerase is proposed. By extracting B-Rep information of the model, the CAD models are represented by the AAG (attribute adjacent graph). Next, the CAD models are expressed as the same topology by Euler operation. Finally, the sub-graph isomorphism approach is used to achieve the partial matching. Experimental results show that this method...
Ray casting algorithm is one important method to render CT volumes with 2D CT slices, and it can be accelerated using graphics hardware. In this paper, we developed an efficient volume rendering system based on ray casting using C++ and VTK, and designed common shading and classification transfer functions to highlight different organs/tissues of a CT volume. With this system we experimented CT volumes...
In this paper, based on the in-depth research of existing 3D modeling algorithms, a new graphical 3D modeling visualization algorithm is proposed. This algorithm can use relatively smaller images demand to generate 3D model with higher precision, thus the efficiency of the 3D modeling realization will be greatly improved. Moreover, this algorithm is simple to achieve, easy to operate, and therefore...
Genetic Algorithms (GA) are search and optimization algorithms and as such are used for minimizing or maximizing a given function and if possible finding its most suitable solution. They can be used for finding a solution to problems that are difficult to solve with traditional optimization techniques, including problems that are not well defined or difficult to be mathematically modeled, such as...
In order to visualize the satellite navigation simulation system, the framework of a distributed satellite navigation simulation system composed of multi-platform systems was analyzed. The composition and the functions of the satellite navigation simulation system visualization software were illuminated. Based on MFC, presented the designing and realizing methods of the system information display...
Keyword-based web search engine uses text to reflect users' query intentions. However, it is hard to descript user's intention with simple text terms accurately, and besides of this, it is also hard to make the association between the text terms and images precisely. As a result, the keyword-based image search engine may return large amount of junk images. In this paper, an interactive image filter...
Identifying faces under the influence of illumination and pose can be challenging as the presence of two variations on the same image can greatly change the appearance of a person. Thus, in this paper, we propose a multiview face recognition system that is able to solve illumination and pose face recognition problems. The proposed system uses multiband feature technique to extract features that are...
In service robot applications, tracking and visual servoing are essential to find objects and position the end-effector of a robot to manipulate an object. In this paper, we propose a high-speed object tracking method based on a window approach and a local feature descriptor, SURF (Speeded-Up Robust Features). The visual servo controller uses geometrical features that are computed directly from the...
It is an important and challenging problem to tack variant-pose target, especially when the appearance of target changes during the period of occlusion. The traditional feature matching methods can not work well under the situations of target pose varying. This paper analyzes the characteristics of human visual tracking, and proposes a visual tracking model based on feature-imagination. Human tracking...
Pixel-value-differencing (PVD) based steganographic methods, which take into account the characteristic of human visual system, usually lead to large embedding capacity and good visual imperceptibility. In this paper, a recently proposed PVD-based steganography is further studied. First, by deriving a sufficient condition for data embedding/extraction, we show that the method can be generalized, and...
The paper is about a biped walking robot that has 12 degrees of freedom and achieves proper gate stability with visual feedback during walking. The bipedal robot is equipped with cheap FSR sensors those are attached underneath the soles of the robot to obtain ZMP instantaneously. It uses a cheap USB camera that is attaching on its head to process images of environment during walking. With the processed...
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