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This paper presents a simple and fast road lane detection and modeling method with high robustness. We use IPM transformation to get a “bird's eye view” of the road and do some image processing to avoid noise, then divide regions for each lane and implement a improved RANSAC algorithm to fit Hyperbolic model defined by us. Our method can successfully detect road lanes in various conditions and achieve...
Despite much work has been done to study and develop different types of spherical robots in the recent years, there are few practical applications. Limited by the totally enclosed spherical shell and the special walking style of rolling, existing spherical robots usually lack exteroceptive sensors, such as laser, vision camera and sonar. So they have weak capability of environmental perception and...
Visual tracking is important in the field of robotic controlling. However, developing a object tracker, which is robust in complex scenarios, is still a challenging work. In the paper, we propose a novel structural local sparse representation based residual error consistent ranking tracker. In the particle filter framework, candidate targets are linearly combined by a local sparse dictionary. By exploiting...
Novel path loss and delay spread models with antenna height dependency under indoor stair environment are proposed. According to the persons' posture and location of the mobile device, the antenna height is categorized as three levels: low, medium and high. The path loss is modeled by using minimum mean square error (MMSE) method; meanwhile, both of mean excess delay and RMS delay spread are modeled...
This paper describes the circumstances when sampled values are involved in IEC61850 communication network where client/server and GOOSE traffic exists. The interaction of Ethernet traffic and several examples were discussed to illustrate some key issues and challenges. It shall create awareness of the issues to be taken into consideration when planning a power utility communication network.
The basic content to instruct graduation design (thesis) through co-operative education of university and corporation is to develop and improve the overall quality of students' integrated capabilities and focused on employment competitive ability. This pattern fully uses school and society that are two kinds of different education environments and resources as well as in talented persons raising aspect...
In the vehicle development, the finite element (FE) simulation method about vehicle crashworthiness has been widely used. But how to reach a good correlation level is something that needs to be studied. Based on one car physical side impact test, through analysis of the correlation method between simulation and test we find a useful way to increase the correlation level. By following this correlation...
The covering rough fuzzy set model as one of the extension models of rough set theory combining with fuzzy set theory is an important issue in rough set theory. It has more general approximation space than the models based on partition. It focuses on the upper and lower approximation of fuzzy sets with the knowledge of covering, which is of great significance to the decision for some purposes. Although...
Based on the analysis of the crushing characteristics of the vertical roller mill, this paper studies the methods of crushing the materials, calculates the relative parameters for the single particle crushing-the largest clamp angle and the particle diameter, analyzes the force of friction between the roller and the material layer as well as the influence of the particle size on the clamp angle. Combined...
In recent years, the Structure Design Competition in many colleges has made significant achievements. With experience from participants in the grade of 2008 and 2009 of Zhejing University City College, this paper analyse the current situation of competition management. Concerning the limitations in organization and mechanism of Structure Association, it put forward practical organization, normalization...
This article, based on the abrasion condition of the rollers on the working field, analyzes the movement characteristics of the material layer of the vertical roller mills from several aspects, such as the tangent speed difference between the roller and the grinding table, the “piles up” phenomenon as well as the flow forms of the material layer. Then we further studied the influence of the movement...
Traditional steel moment frames use welded beam-column connections, which are susceptible to brittle fracture and commonly have large residual deformation after the earthquakes. A novel beam-to-column connection for steel moment frame is proposed. Four full-scale new connections and two connections without self-centering capacity were tested under cyclic lateral load, the connections' strength property,...
In this article author points out requirement of Tech-Knowledge conformity, and regarding software enterprises as example defines Tech-Knowledge conformity, analyzes innovation flow and characteristics, and expounds elaborately Tech-Knowledge conformity modes and ways based on tech-innovation, and HR management ways promoting Tech-Knowledge conformity.
Based on two-dimension analysis and feedback analysis, mode of techno-knowledge management system of high-tech enterprises is constructed in this article. Authors conclude and analyze activities of techno-knowledge management, analyze function of techno-knowledge management in improving core competence from dynamic and systemic angle, and put forward the principles which techno-knowledge management...
Accuracy is a very important criterion for the classifier in the process of classification. In this paper, a unified paradigm for the calculation of accuracy evaluated different classifier, using topological covering-based granular computing, is presented under the given sample space and different ideal classification assumptions. And corresponding examples for the calculation of accuracy in different...
H.264/AVC scalable video coding (H.264/AVC SVC) offers the flexible adaptivity in terms of spatial, temporal and SNR scalabilities for the generated bitstream. However, transmission of such compressed video over error prone channels may result in packet losses or errors, which can significantly degrade the image quality. In this paper, we present a new error concealment (EC) scheme to tackle the slice...
The noise distributions of He-Ne laser were measured up to 2 MHz. The results shows that discharge current, the ratio of gas and the total gas pressure are the main factors on the noise.
Image processing is an important aspect of microarray experiments. Spots segmentation meaning to distinguish the spot signals from background pixels, is a critical step in microarray image processing. After analyzing other existing means of microarray segmentation, a new method based on region growing algorithm, mathematical morphology (MM) filtering and morphological processing is presented. And...
A method of constructing a grid map based on Dempster-Shafer evidence theory (D-S evidence theory) is proposed with respect to the problem of unstructured unknown environment mapping. Mobile robot explores environment with a laser scanner. D-S evidence theory is used to fuse information. The problem that D-S evidence theory can't be applied to information fusion under certain circumstances and the...
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