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Vehicle classification system is an important part of intelligent transportation system (ITS), which can provide us the necessary information for autonomous navigation, toll systems, surveillance and security systems, and transport planning. In this paper, we introduce a vehicle classification system based on dynamic Bayesian network (DBN). Three main types of features are employed in our system:...
In this paper, we propose a system of automatically classifying different types of dates from their images. Different dates have various distinguished features that can be useful to recognize a particular date. These features include color, texture, and shape. In the proposed system, a color image of a date is decomposed into its color components. Then, local texture descriptor in the form of local...
Research in content-based image retrieval today is a lively discipline, expanding in breadth. Discovering new and innovative processes of locating a desired image from an expanding collection of images has been a major area of interest for many professional fields. This has led to the increasing use of a technique called Content Based Image Retrieval which is used to retrieve images based on low-level...
Fast computers and sophisticated numerical methods along with sound mathematical models have enabled structural health monitoring to emerge as an efficient means of evaluating the health of a structure and detect any damage to enable appropriate retrofitting. This paper uses vibration based methods to develop and apply techniques to detect the damage in beam and plate structures that form important...
Qualitative Mapping(QM) is the basis of Property Theory, by which Conversion Degree Functions are induced. Furtherly Inverse Conversion Degree Functions are proposed used to convert qualitative description into quantitative value for some attributes of objects according to the degree to which the qualitative description belongs. Finally Qualitative Membership Degree Matrix based on the proportion...
This paper investigates real-time target determination, recognition and tracking with an airborne video system. The visual navigation and target tracking in an unmanned aerial vehicle (UAV) are of great interest among scientists. To achieve real-time target determination and tracking, we have to accomplish two missions: to determine the “feature” of the target in real time, and to update the the “feature”...
Some methods to increase efficiency of electron beam usage in sterilization installation, simulated by computer code “Beam Scanning”, are presented. These methods include a correction of the current waveform in deflecting magnet, forming slightly convergent electron flow and irradiation of lateral object sides by low-energy electrons in the energy spectrum.
This paper proposes an interface for controlling medical images using hand gestures. The proposed interface has two modes. One is a surgery-ready mode that a RGB-D camera captures a surgeon's body and the interface provides hand-based interactions with medical images before beginning a surgery. The other is a surgery mode that the camera captures a patient's body, and the surgeon can take a picture...
In recent years, touch enabling technologies potentially have supported to design and develop small and large sizes of multi-touch screens. These sensitive devices assist users to select and manipulate the target objects using their bare fingers. However, it is reported that user fingertips cause the imprecise selection of small size targets and subsequently users get frustrated during interaction...
In order to address the efficient issue of the topological shape optimization problem, this paper presents a parametric level set method for the problem of continuum structures by using the Radial Basis Functions (RBFs). The level set-based method is introduced to implicitly represent the free boundary of a structure. To evolve the level set front, the Wu's compactly supported radial basis function...
This paper addresses the self-assembly of a large team of autonomous boats into floating platforms. We describe the design of individual boats, the systems concept, the algorithms, the software architecture and experimental results with prototypes that are 1:12 scale realizations of modified ISO shipping containers, with the goal of demonstrating self-assembly into large maritime structures such as...
Survey data in use in Civil Engineering consists of points described with XYZ coordinates. Closed shapes, like lakes described with a number of such points are immediately recognizable to humans although points are grouped in unconnected and unrelated lines. Automatic processing of those closed shapes is required if computer analysis is to be performed, i.e. we would like to produce a finite element...
We developed a general purpose electro-tactile stimulator that can configure with computer to generate different pattern of current waveforms. Four independent channel are provided in this system. Additionally, for one time programming by computer and multiple use by other devices, digital I/Os are embedded which serve as trigger input and output. User is being able to turn on or off each channel...
Wireless sensor networks (WSNs) are generally used to monitor, in an area, certain phenomena which can be events or targets that users are interested. To extend the system lifetime, a widely used technique is ‘Energy-Efficient Coverage-Preserving Scheduling(EECPS)’, in which at any time, only part of the nodes are activated to fulfill the function. To determine which nodes should be activated at a...
We consider the problem of target coverage in visual sensor networks with Pan-Tilt-Zoom (PTZ) cameras. The finely controllable movement in PTZ dimensions creates a large number of possible Field-of-View (FoV) settings, making it prohibitively expensive to consider them all in coverage algorithms. However, these FoVs are redundant as each group of targets is generally covered by many FoVs. Thus, an...
The majority of current research on sensor network localization focuses on wireless sensor networks deployed on two dimensional (2D) plane or in three dimensional (3D) space, very few on 3D surface. However, many real world applications require large-scale sensor networks deployed on the surface of a complex 3D terrain. Compared with planar and 3D network localizations, surface network localization...
Our vision is that regardless of future variations in the interior of airplane cabins, we can utilize ever-advancing state-of-the-art virtual and mixed reality technologies with the latest research in neuroscience and psychology to achieve high levels of comfort for passengers. Current surveys on passenger's experience during air travel reveal that they are least satisfied with the amount and effectiveness...
We aim to analyze the effect of varied typefaces on font readability using ten most popular fonts. The study has been conducted with only one variable parameter which is font face. Other parameters affecting font legibility like font size, line spacing and character spacing have been kept constant. The study for this survey was conducted on post-graduate students within the age group of 20 – 25 years
Sign language is a widely used and accepted standard for communication by people with hearing and speaking impairments. A sign language is a language which uses visually transmitted sign patterns, instead of acoustically conveyed sound patterns, to deliver the meaning. Several ways to generalize the American sign language recognition have been proposed in the past [14] [15]. In this paper, novel method...
As we watch 3D objects and move, the appearance of the objects would change. This is called motion parallax and it is one of important depth cues. We develop an interactive stereoscopic CG system using motion parallax. This system follows the position of a user's view point, and generates 3DCG images for the view point every moment. As a result, the system can reproduce motion parallax and realize...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.