Laboratory works are used most of the times just as an illustration to the theoretical issues given at the lectures. They become inherently “small”, addressing just a limited part of the “big picture”. Since real-world phenomena and devices cannot be delegated to a specific conventional discipline, even to an interdisciplinary one, we propose the design of laboratory works that can provide to the students the opportunity to learn to work cooperatively in groups related to certain subjects. They will try to achieve synergistically the project goals, becoming better prepared for the scientific or technical future careers
We will present in this paper a method for the reconstruction of the oral 3D structure using Computed Tomography (CT) sections obtained from Cone Beam Computed Tomography (CBCT). A high-quality visualization of the dental tissues, based nowadays on fine 3D reconstruction, is essential for accurate diagnosis and treatments. Dental CBCT images present several major problems because of the noisiness and of the configuration of the system. We tried several algorithms in order to overcome these issues and to obtain a feasible and efficient method that can be used directly in the clinical procedures. Our approach includes novel procedures like the delimitation of the region of interest and the combination of registration and segmentation steps, which grant faster results and open the route to better representations.
We present in this paper a fast method for the reconstruction of the dental 3D structure using the images obtained from Cone Beam Computed Tomography (CBCT). A high-quality visualization of the dental tissues, including 3D reconstruction, is essential for the accurate diagnosis and treatment in dentistry. The segmentation for the dental CBCT images presents several major problems because of the noisiness of the images. We analyze the existing methods and propose one that uses the information for the dental structure and distribution to reduce the computational load and to provide good results in an automatic procedure.
1 January 2015 in Environmental Engineering and Management Journal
Cone Beam Computed Tomography (CBCT) is one of the favorite imaging technologies in dentistry because if offers 3D images in conditions of reduced irradiation. High quality 3D imaging is essential for first-rate diagnostic and treatment, despite the rather low quality images, with low contrast and high noise. The paper presents an automatic method for 3D reconstruction of the oral cavity. We analyze the existing state of the art in the field and propose a segmentation method that uses the domain knowledge related to mouth and teeth to reduce the computational load and to provide good results in an automatic procedure. The method is based on a Canny type edge detector, that was found to offer better control than active contour methods.
1 May 2015 in Procedia - Social and Behavioral Sciences
The paper describes the adaptation of the Computer Architecture laboratory works given at the Faculty of Engineering in Foreign Languages from the University POLITEHNICA of Bucharest to the new trends in digital logic design. The laboratories are given in a gradual approach, starting with simulation, continuing with breadboard design and finishing with circuits made on perf-board. We are preparing now to complement the practical side of the laboratory with Field-Programmable Gate Array (FPGA) design, where the students will conceive, simulate, synthesize and implement the circuits already studied in the initial approach that used simulation followed by integrated circuits practical design