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This paper presents a nondestructive method of brick wall dampness testing in real building structures. The setup was used to determine the moisture of test brick walls on the specially built laboratory models. The topological method and the gradient technique are used to optimization approach. The level set function was used to solve the inverse problem in the electrical impedance tomography. The...
Today, driver assistance systems and autonomous vehicles are actively developed and verified in real-world test scenarios. These real-world tests are neither cheap nor sufficient to ensure a reasonably low enough risk of failure. In order to enable efficient and methodical system tests, we propose the use of Virtual Testbeds (VTBs) as a software environment in which "Digital Twins" of real...
The consequences due to lightning on different building shapes needs a comprehensive knowledge in order to provide the information to the common man. This paper is mainly concern with the development of a small scale model to study impulse flashover and attachment pattern of protected building structures due to lightning strike. The lightning strike pattern of buildings is based on the practical experimental...
In this paper, a structural conditional random field framework (SCRF) is proposed to detect the detailed change information from high spatial resolution (HSR) remote sensing imagery. Traditional random field based methods encounter the over-smoothing problem when deal with HSR images and the boundary of changed objects cannot be preserved well. To solve this problem, in SCRF, fuzzy c means (FCM) is...
We demonstrate an integrated strategy for identifying buildings in very high resolution satellite imagery of urban areas. Buildings are extracted using structural, contextual, and spectral information. We perform multi-resolution and spectral difference segmentation to obtain a proper object segmentation. First, we use One-Class support vector machine (SVM) in order to determine the man-made structures...
In this paper, we propose a persistent scatterer clustering method for high-resolution structure displacement analysis. Persistent scatterer interferometry can monitor millimetric displacement of structures like bridges, buildings, and roads by analysis at persistent scatterers (PSs), pixels with high coherence in synthetic aperture radar (SAR) images. However, it requires great time and effort to...
An approach for detection and segmentation of individual buildings on space images and aerial photos is proposed. The approach allows intuitively constructing the system of rules to select objects without prior training, using only simple geometric characteristics of their form.
Building envelopes manage several crucial functions, including structural, thermal, hygric and aesthetic functions. Classic façade concepts usually work with static elements like glass, metal or composite panels that primarily provide protection against the elements, and an additional layer of active systems that manage dynamic tasks like light protection or thermal regulation. Kinematic shell elements...
In this paper solution approaches for solving the building spatial design optimisation problem for structural and energy performance are advanced on multiple fronts. A new initialisation operator is introduced to generate an unbiased initial population for a tailored version of SMS-EMOA with problem specific operators. Improvements to the mutation operator are proposed to eliminate bias and allow...
In the existing various kinds of active contour model methods about image segmentation, level set method has been widely used because of its powerful capabilities of topological transformation. Because of the global computation, level set has accurate shape description effect. On the other hand, it makes the segmentation result sensitive to noise. In this paper, we propose a simple modified method...
This paper introduces a new type of versatile modular reconfigurable robot. This robot is a self-reconfigurable truss structure. The requirements and challenges involved to build a functioning system are explored. These include the functional requirements, and the implications on hardware design, software issues and topological analysis. One potential application for this robot is the shoring of damaged...
Building extraction from aerial images is one of the recent topics of remote sensing used in many applications such as urban planning, disaster management, military planning, and Geographic Information Systems (GIS). One of the commonly used approaches in building extraction is Active Contour Model (ACM), also called snake model, for its ability to extract contours of structured and unstructured shapes...
The lack of digital floor plans in most buildings has become a huge obstacle to pervasive indoor location based services (LBS). Recently there has been quite some research that leverages various sensing data such as inertial, WiFi and images from ubiquitous mobile devices (e.g., smartphones) to construct floor plans at large scale and low costs. Although great efforts are made to improve the accuracy...
Architectural models have always played an important role in computer graphics, virtual environments, and urban planning; due to the size, detail and complexity of such models. Creating detailed and realistic buildings needs time and extensive coding as well as significant domain expertise. Observing the content creation problem and the challenges of procedural modeling, we identified and developed...
Modeling propagation in urban areas is fundamental for microcellular network design. The main difficulty in developing deterministic models is that propagation areas are both large in size and complex in shape. In this study, we focus on the power transmission characteristics of the wave propagation process and we divide the process into basic elements according to the geometrical characteristics...
The RoboCupRescue Simulation project is a way to evaluate approaches to disaster relief that use the latest techniques of artificial intelligence, information science, and related topics. The project holds annual international and regional competitions as a part of RoboCup, which is the world cup of autonomous robots. In the competition, participants compete for championship using their own ideas...
In present analyses of the architectural constructions, the important place belongs to algorithmic determination of their shapes in masonry structures cross-vaults, which often require expensive restoration. Particularly interesting is the way these buildings lighting by daylight. Daylight, besides the aesthetic and visual effect, has an important role in minimizing the consumption of energy. For...
Inverse procedural modeling discovers a procedural representation of an existing geometric model and the discovered procedural model then supports synthesizing new similar models. We introduce an automatic approach that generates a compact, efficient, and re-usable procedural representation of a polygonal 3D architectural model. This representation is then used for structure-aware editing and synthesis...
This paper explores the problem of building a structure of a desired shape, using re-usable interlocking blocks. Blocks are cubes; we make use of nine different types of cubes, each with different arrangements of male and female connectors on the six sides of the cube. The desired shape is specified by a set of voxels. We propose an algorithm that lays out cubes in a particular pattern to give the...
While science, technology, engineering and math hold the fastest growing fields today, only 44% and 36% of students are math and science ready, respectively, to enter college. By integrating the arts into STEM, a four-part origami based curriculum has been developed, which combines the topics of renewable energy, architecture design, 3D CAD design and printing, and mathematic, science, and engineering...
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