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This paper deals with design of a new protective structure and completes the first step resulting to the preliminary draft of its shape and structural design. The process of designing the protective structure started with creation of the computational model solved in the software environment Ansys Fluent, where the most common cuboid shape of protective structure was assessed on the bases of output...
A method is proposed to predict the shape of a paper model of a three piece brassiere cup, which consists of several cloth and wire parts. Currently, the shape of each part is determined by creating a paper model and then refining the model. This process is repeated until the desired shape is achieved. However, predicting the 3D shape with a simulation would improve design efficiency. As a model is...
Many studies emphasize the importance of infant-directed speech: stronger articulated, higher-quality speech helps infants to better distinguish different speech sounds. This effect has been widely investigated in terms of the infant's perceptual capabilities, but few studies examined whether infant-directed speech has an effect on articulatory learning. In earlier studies, we developed a model that...
The rapid growth of 3D model resources for 3D printing has created an urgent need for 3D model retrieval systems. Benefiting from the evolution of hardware devices, visualized 3D models can be easily rendered using a tablet computer or handheld mobile device. In this paper, we present a novel 3D model retrieval method involving view-based features and deep learning. Because 2D images are highly distinguishable,...
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...
Torsion links are components which couple inner and outer cylinders of a landing gear mechanism. They prevent torsion or twisting between the cylinder and piston components in the structure. The integrity of this component is essential to prevent shimmy vibrations in an aircraft landing gear. Failure of this component is thus catastrophic for the aircraft. The typical geometry of torsion link of a...
3D exploded views have been widely used for assembly instructions in many fields but have seldom been used in archaeology. For studying stone tools, relics are repeatedly assembled using indistinct traditional illustrations. We apply this powerful presentation technique on the stone tool models, and study algorithms for point cloud data. In addition to presenting principles for the restoration of...
A de-cubing process are important in the Laminated Object Manufacturing (LOM) technique, creates a physical model directly from 3D CAD model without mold and dies by using laminated material. The de-cubing process is to assign shape of waste material into generally small square shape that can be easily remove in order to reduce time and avoid prototype damages. The adaptive de-cubing process applies...
A new and holistic modelling methodology is developed to investigate the impact of line-edge roughness (LER) on time-dependent dielectric breakdown (TDDB). Unlike the conventional approach with a normal distribution for LER profiles [1-3], a realistic simulation of line-edge roughness (LER) profiles is carried out based on a power-spectrum density (PSD) function including the effects of both roughness...
Representative distribution of body shapes is needed when simulating crowds in real-world situations, e.g., for city or event planning. Visual realism and plausibility are often also required for visualization purposes, while these are the top criteria for crowds in entertainment applications such as games and movie production. Therefore, achieving representative and visually plausible body-shape...
Inferring the pose and shape of vehicles in 3D from a movable platform still remains a challenging task due to the projective sensing principle of cameras, difficult surface properties e.g. reflections or transparency, and illumination changes between images. In this paper, we propose to use 3D shape and motion priors to regularize the estimation of the trajectory and the shape of vehicles in sequences...
Incorporating 3D information has proven to be effective in many computer vision tasks and it is no exception in the context of facial analysis. However, limited application has been witnessed in face hallucination (FH), probably due to the difficulty of fitting 3D models onto low-resolution (LR) images. This paper presents a pure 3D approach to address this problem. By extending the LR image formation...
STandard for the Exchange of Product Model Data (STEP) is a neutral format file that carries life cycle information of solid models. The main objective of the neutral file is to communicate or exchange the data with different CAD/CAM systems. There are different neutral files before the evolution of STEP file like IGES, DXF, STL etc., but these neutral files could not carry the lifecycle data of the...
We extend a novel 2D shape descriptor called Distance Interior Ratio (DIR) [4] to describe a 3D shape represented by a volumetric model, called 3DDIR. The 3DDIR is defined as follow: Given a segment ab between two points a and b on the surface of an object O, the DIR of ab is the ratio of the total length of its fragments O ∩ ab to the length |ab|. To find the fragments O ∩ ab, we apply a simple ray...
In this paper, we depict a novel self-collecting, self-reconfiguring cubic robot that utilizations turning movements to change its expected geometry. Every individual module can turn to move straight on a substrate of stationary modules. The modules can utilize the same operation to perform curved and sunken moves to change planes. Every module can likewise move autonomously to cross planar unstructured...
In this demonstration, we showcase a system for rapid acquisition of bespoke avatars for each participant (subject) in a social VR environment is presented. For each subject, the system automatically customizes a parametric avatar model to match the captured subject by adjusting its overall height, body and face shape parameters and generating a custom face texture.
We present a system for rapid acquisition of bespoke, animatable, full-body avatars including face texture and shape. A blendshape rig with a skeleton is used as a template for customization. Identity blendshapes are used to customize the body and face shape at the fitting stage, while animation blendshapes allow the face to be animated. The subject assumes a T-pose and a single snapshot is captured...
The paper presents results obtained for the cooling process of a new-designed SMA-based wave generator (SMA-WG), which represents the deforming component of a harmonic drive. SMA-WG is driven by two-way SMA elements and, due to this, it does not require a driving motor. Correct SMA-WG operation supposes a simulated rotational ellipse performed by SMA elements, which is achieved by a cyclical control...
In recent years, hand drawn sketch based 3D model retrieval method has become a popular research area due to the rapid growth of available 3D models on the Internet. However, most existing sketch based 3D model retrieval methods only consider using low-level visual features that cannot capture users'search intention. In this paper, we propose a novel sketch-based 3D model retrieval approach by using...
In this paper we present a novel approach for 3D facial expression recognition based on a registration method. The used registration method, called the Coherent Point Drift (CPD), is applied to estimate complex non-linear and nonrigid transformation between 3D facial surfaces. The computed transformation allows to recover shape deformations that are induced by facial expression variations. Machine...
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