Razvan Tudor Tanasie

Control of a hyper-redundant robot

This paper deals with the subject of visual control of a hyper-redundant robot. This type of arm changes its configuration by bending a continuous backbone formed of sections connected in a serial configuration. Such tentacle arm has a variable length and theoretically it can achieve any position and orientation in the 3D space. A tentacle arm prototype was designed and the practical realization is now running. The mathematical modeling of such a robot takes under consideration both the kinematics and dynamics approach. A development environment for visual servoing application was designed and implemented. This environment includes both tools for simulating visual servoing algorithms (a graphic simulator), as well as tools for controlling hyper-redundant robots using a closed loop video control system. The visual servoing system does not answer in real time. The delay introduced by the image processing task is taken into consideration and simulations are performed trying to find a solution for this problem.

Educational policies in european engineering higher education system - best practice examples

The objective of the work package Policy of the LLP SALEIE project is to bring together policy administrators from institutions across Europe in order to review current practices and to identify examples of best practice. This would help build a common understanding of governance and policy implications on the strategic changes associated with the project, and create a centre for excellence in the policy area. Amongst the tools proposed to be used in the frame of SALEIE project, surveys play a major role. This paper deals with the problem of best practice examples identification based on the analysis of the data collected using the questionnaire of the survey.

Policies for Higher Education Institutions in Electrical and Information Engineering

This paper deals with the process of identification of the needed changes within higher education to meet future challenges. The work is related with the work package Policy of the LLP SALEIE program “Strategic Alignment of Electrical and Information Engineering in European Higher Education Institutions”. The analysis includes a review of the needs and impact of administrative policy as it impacts the design, development, delivery, assessment and review of academic programmes. The final objective of this global task is to bring together policy administrators from institutions across Europe to review current practices and to identify examples of best practice, to build a common understanding of governance and policy implications on the strategic changes associated with the project, and create a centre for excellence in the policy area. The paper presents the designing process of a questionnaire regarding the above problems. The objective is to achieve as broad coverage of European higher education institutional responses as possible.

A New 3D Watermarking Algorithm

In this paper, an original spatial watermarking technique adapted for 3D images is presented. This technique lowers the computational complexity that normally rises with the traditional watermarking algorithms. This new algorithm produces an invisible watermark that is robust to various kinds of attacks. The technique uses a slice-based approach to 3D watermarking. The proposed technique modifies pixels of the 3D object by a spatial watermark insertion. Spatial mask of suitable size is used to hide data with less visual impairments.

Programme policies in European engineering higher education system

SALEIE - “Strategic Alignment of Electrical and Information Engineering in European Higher Education Institutions” is a LLP program started in October 2012 and is on-going. The objective of the WP5 - POLICY SALEIE work package is to bring together policy administrators from institutions across Europe in order to review current practices and to identify examples of best practice. Following the development of SALEIE project, this paper deals with the subject of identification of best practice examples for a specific problem: the management of a program in European higher education universities in the field of electrical and information engineering. We discuss the problems related with program creation, programme accreditation, programme evaluation, and program change.

Constructive volumetric modeling

In this article we intend to present a method of obtaining high complexity sinthetic scenes by using simple volumes as the building blocks. The below described method can be used to obtain both homogenous and heterogenous volumes. This is done by combining volumes of different voxel densities.

Volume Content Indexing Using a Fractal Coding Algorithm

Current technology has made possible to scan volumes with ease and thus huge amount of data is generated. Devising algorithms to efficiently store and index this data is an open challenge. In this article we propose a theoretical approach to volume indexing by extending the idea of using fractal compression to index images, to the third dimension. The described technique uses a classification method that greatly improve the exponential complexity of the volume fractal coding. The compressed volume can then be used to be indexed in a digital library in a more efficient way. Then, content-based similarity queries can take full advantage of the self-similarity property of fractals. All these features will be present in an application that is currently under development.