The enormous number of advantages of minimally invasive surgery leads to the development of computer systems that are helpful tools during laparoscopic operations. In the paper a liver deformation model has been propo...
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In 2005 an integrated blended e-learning service based on Moodle Learning Management System (LMS), was introduced in Silesian University of Technology, Gliwice, Poland [1]. Review of LMS content shows that some course...
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This article presents maximisation of components tolerance together with finding optimal frequency of a periodic excitation in fault diagnosis of analogue electronic circuits. Addi-tionally classical two-stage "d...
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In this paper a real-time image based visual servoing scheme for a nonholonomic mobile robot is presented. The proposed method takes into account the nonholonomic motion constraint of mobile robots. As a distinctive f...
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This paper introduces a new quadrotor manipulation system that consists of a 2-link manipulator attached to the bottom of a quadrotor. This new system presents a solution for the drawbacks found in the current quadrot...
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ISBN:
(纸本)9781467344401
This paper introduces a new quadrotor manipulation system that consists of a 2-link manipulator attached to the bottom of a quadrotor. This new system presents a solution for the drawbacks found in the current quadrotor manipulation system which uses a gripper fixed to a quadrotor. Unlike the current system, the proposed system enables the end-effector to achieve any arbitrary orientation and thus increases its degrees of freedom from 4 to 6. Also, it provides enough distance between the quadrotor and the object to be manipulated. This is useful in some applications such as demining applications. System kinematics and dynamics are derived which are highly nonlinear. controller is designed based on feedback linearization to track desired trajectories. controlling the movements in the horizontal directions is simplified by utilizing the derived nonholonmic constraints. Finally, the proposed system is simulated using MATLAB/SIMULINK program. The simulation results show the effectiveness of the proposed controller.
A correct diagnostics together with the early prediction of failure or malfunction of the system are the major issues in modern maintenance. Nowadays, the time-honored diagnostics may be inadequate and lead to omittin...
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Modern detectors used in high energy physics experiments are complex instruments designed to register collisions of particles at a rate in the MHz range. Data that correspond to a single collision of particles, referr...
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This paper presents a novel approach to scribblebased image colorization. In the work reported here we have explored how to exploit the textural information to improve this process. For every scribbled image we extrac...
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ISBN:
(纸本)9784901122115
This paper presents a novel approach to scribblebased image colorization. In the work reported here we have explored how to exploit the textural information to improve this process. For every scribbled image we extract the most discriminative features using linear discriminant analysis (LDA). After that, the whole image is projected onto a discriminative textural feature space. Our main contribution lies in propagating the color in the feature space domain rather than using the luminance channel. The presented experimental validation confirms the importance of using textural information and show that our method significantly improves the obtained colorization results.
The current work aims at offering a new, ontology-based approach for organizing and retrieving the information about the educational offer and the activity of the department of automaticcontrol of the faculty of Auto...
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ISBN:
(纸本)9789898425775
The current work aims at offering a new, ontology-based approach for organizing and retrieving the information about the educational offer and the activity of the department of automaticcontrol of the faculty of automaticcontrol and computerscience at the University Politehnica of Bucharest. The project is divided into 2 main phases. The first phase consists of creating an ontology which contains information about the disciplines, the teachers, the teaching resources, the research and publication activity in our faculty, while the second phase consists of developing an application for exploring and querying this ontology in a controlled natural language.
In this paper, we consider the problem of noncausal identification of nonstationary, linear stochastic systems, i.e., identification based on prerecorded input/output data. We show how several competing weighted (wind...
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