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This paper proposes a method for contour completion of a skew-symmetry object which is partly occluded by other objects. The proposed method assumes that skew symmetry of a shape can be measured by correlation with its reflection on a no orthogonal plane. Under the assumption, the method estimates a skew-symmetry axis and a skew transverse angle, and then reflects the contour to the estimated axis...
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...
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...
Aircraft need detect landing flag when landing. By using invariant moment method, the aircraft can recognize the image including landing flag. A modified moment method based on Hu's invariant moment is applied to analyze features of digital images using invariant moment theory and technology, with translation, rotation and scale invariance on the research of geometric invariant moments.
The aim of this study is to investigate the question: “Can Information and Communications Technology (ICT) helps to improve primary school students' geometry achievements for rectangles?” The applied educational software consisted of a story and several activities with and without the use of computers which were designed following the background of Realistic Mathematics Education for geometry concepts;...
This paper examines the conceptual synthesis processes in conjunction with assistive computational support for individual and collaborative interaction. We present findings from two educational design interaction experiments in product creation processing (PCP). We focus on metacognitive aspects of interaction, externalization and, representation to obtain better performance, shorter ideation time...
This paper describes an option how to detect a desired Java code snippet in a large number of Java source files. The scripting language Scripthon is used to describe the desired section. Next, from this piece, an abstract tree is created, and it is compared to the other trees which are created from the Java source codes. The Java Compiler API is used to obtain the trees from the Java source codes.
In this paper, we propose an office layout support system for polygonal space using interactive genetic algorithm. The proposed system has two phases; (1) generation of room arrangement plans and (2) generation of layout plans for workspace. In the proposed system, layout plans can be generated not only for a workspace whose shape is square but also for a workspace whose shape is polygonal. In this...
In the wake of 21st century progress, there is a huge demand for trained bioinformaticians to fulfill growing industry needs. As such, increasing numbers of Computer Science graduate students and researchers pursue their education and career in this promising field. There is the problem of a potential communication gap, faced by budding bioinformaticians, due to insufficient biological knowledge....
Load profiling provides the necessary information about daily demand patterns for the short and medium-term actions οf retailers and utilities. Consumer characterization is a two stage approach: In the first stage, the daily load curves of each consumer are classified in a certain number of clusters. Each cluster constitutes a load profile. In the second stage, one of these profiles is chosen as representative...
This paper provided a Data Stream Clustering Algorithm Based on Grid and Relative Density which inherits the advantages of grid based clustering and relative density based clustering which can discover arbitrary-shape and multi-resolution clusters. Meanwhile introduced a concept of support which made algorithm adopt thoughts based on distance-based algorithm, provide the way to solve the effects of...
Parallel coordinates, an important tool for multidimensional data visualization. The property axes of the traditional parallel coordinates are of equal length, which are restricted in many ways. This paper presents a parameterized parallel coordinates method by adjusting the parameters get by function to control the length of different axis. When the axial length get by the polar equation, parallel...
Through the introduction of continuous variable density topology optimization, try to use it in product development and optimization of large-scale mechanical product, and put forward the optimization theory, method and practical experience.
Inspired by the work on sensory substitution which shows the technical and practical possibilities for perceptual learning, we have carried out a global longitudinal study of the learning capacities for reading digital graphical objects by four blind high-school students. We report here the results obtained with the Tactos system during certain phases of this study, in particular the acquisition of...
This paper introduces a work-in-progress at the Open University of Catalonia. Following a user-centered design process, the powerful possibilities opened by the Internet of Things (IOT) are being included to eLearning in order to enhance the learning experience. The IOT represents an expansion of the learning environment and will bring tangibility to the learning process, adding to the most commonly...
With the development of digital forestry, image processing and pattern recognition technology have been extensively used in the study of forestry research. It is currently a hot research that automatic plant recognition by use of computer. In some developed countries, the technology has been used in the agricultural production. This paper overviews the study of automatic plant recognition by use of...
In this paper, we show that the singularities of C-Bézier curves can be controlled, and we prove that if a nth degree C-Bézier curve has a singular point, then it can be explicitly computed. It is useful when using C-Bézier curves for curve and surface modeling.
In this paper, successfully we implemented 2-pass mesh warping algorithm by using Bezier curve for warping the images and various video effects that consists two passes. We obtained enchanting results on various images. Mainly its applications are remote sensing, movies and advertisements.
Two kinds of trigonometric spline bases are constructed in this paper. Based on these bases, two kinds of trigonometric spline curves are defined. As each piece of these trigonometric spline curves are generated by three consecutive control points, these curves retain many properties of the quadratic B-spline curves, but they have better continuity than the quadratic B-spline curves. For equidistant...
A basic problem may be often encountered when people construct smooth surface that interpolates the given curve meshes. In general, object surface can be divided into triangular and quadrangular areas by the given curve meshes. The problem is that while the methods satisfy the continuity and interpolation requirements, they often fail to produce pleasing shapes, or in reverse to the condition. In...
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