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Image-Based Rendering (IBR) allows good-quality free-viewpoint navigation in urban scenes, but suffers from artifacts on poorly reconstructed objects, e.g., reflective surfaces such as cars. To alleviate this problem, we propose a method that automatically identifies stock 3D models, aligns them in the 3D scene and performs morphing to better capture image contours. We do this by first adapting learning-based...
Reconstructing 3D face models from multiple uncalibrated 2D face images is usually done by using a single reference 3D face model or some gender/ethnicity-specific 3D face models. However, different persons, even those of the same gender or ethnicity, usually have significantly different faces in terms of their overall appearance, which forms the base of person recognition using faces. Consequently,...
While single-view human action recognition has attracted considerable research study in the last three decades, multi-view action recognition is, still, a less exploited field. This paper provides a comprehensive survey of multi-view human action recognition approaches. The approaches are reviewed following an application-based categorization: methods are categorized based on their ability to operate...
She ethnic is one of old and mysterious ethnic groups who are scattering in the south-eastern mountain area in China. Owing to the outward impact, its indigenous She culture has been severely weakening. The paper aims to save and spread the precious cultural relic by discussing the present dilemma, spreading types and features faced by She ethnic culture. And systemic saving methods have been proposed...
Virtual vehicle is a typical human-in-the-loop simulation application, which can support weaponry acquisition at an affordable cost and in less time. Virtual vehicle integrates the techniques of virtual prototype, high level architecture (HLA), virtual reality and database etc, where virtual prototype is the kernel of virtual vehicle, which provides the engine of virtual vehicle's actions. HLA enables...
Forest above ground biomass (AGB) is an important variable for evaluating ecosystem function and structure across landscape, which is necessary for studying forest productivity, carbon balance and nutrient allocation in forest ecosystem. In this study, a forest biomass estimate technique based on forest backscattering database is developed, and is used to retrieve AGB of Changbai mountain area from...
Along with the CAD technology being popularized, three-dimensional exterior designs of aircraft is ultimately realized into digital design. However, aircraft tolerances have not been designed by computer. They are mainly based on lots of manual calculations. Therefore they are not coordinated with product's integrated design and hold back the developing of aircraft digital design and manufacture technologies...
There exist generally low fidelity, function insufficiency, deficient effect etc to the existing substation training simulator. We present a novel full-functional virtual simulation training system of substation by means of three-dimension virtual simulation technology, database technology. During the course of realizing numerous training cases, DOF, multi-channel technology are adopted to reappear...
This paper proposes a PDM design based on the clothing plate-type, and integrates the various different tools and software used in the stages of the product life cycle. So that the data can be used unhindered by the designers, producers, managers and marketers at all stages. It solved the problem that date can only be used in a phase-specific. In this paper, we construct the two three-tier structure...
In order to overcome the shortcomings of the present microgripper, a new type of microgripper based on GMM was presented. Microgripper based on GMM is a type of microgripper based on giant magnetostrictive material. Driving force is provided by the expansion and shrinkage of GMM in magnetic field. Using giant magnetostrictive material to drive microgripper can not only realize quick response and large...
Based on a close research of the interior representation of CAD model in MDT, ObjectARX application program is developed using the development tools of ObjectARX and MDT API offered by Autodesk Inc in MDT environment, according to which the database is expatiated particularly. So that this thesis picks-up the interior topological and geometrical information of model expressed in the boundary representation...
The paper integrated the geographical information system with cellular automata (CA) and made use of VB and ArcGIS as development tools to design and implement the system of forest fire spread in Inner Mongolia Region. It realized the simulation of the 2D forest fire spread based on CA and visualization of the 3D realtime images transmitted from the fire site. In the 2D simulation process, combing...
In long distance rapid prototyping service system, there are large volumes of information and data covers a wide area. And the relations among dada are rather close. Also the information update and change dynamically. Therefore advanced database technology is needed to mange and maintain those information and data efficiently, so to ensure the data safety, integrity, easy operability and maintenance...
The impact of natural movement/sway while standing still during the capture of a 3D face model for biometric applications has previously been believed to have a negligible impact on biometric performance. Utilizing a newly captured dataset this paper demonstrates a significant negative impact of standing. A 0.5 improvement in d' (test of correct/incorrect match distribution separation) per 3D face...
The paper develops and discusses a conceptual model for a mixed reality-based remote collaborative system (MR-Collab) based on motivated learning agents. The proposed MR-Collab system is described in details as well to help better understand this model. Self-development agent based on previous work is an intelligent agent, which not only receives information from sensors in the environment, but also...
Tracking an object is one the most considerable and applicable field of the machine vision. In this field, tracking a non-rigid object like human are so difficult because of variable shape of this kind of object and the self-occlusion that normally between different parts of the human body occurs. The methods of human tracking are categorized to four main categories which are model-based, feature-based,...
The paper describes the creation of a tactical communication simulation training system (TCSTS) based on virtual reality (VR). The system can train the soldiers without real equipment, reduce high cost, and improve efficiency. At first, the paper presents the system design based on its military requirements. Secondly, the key technology is detailed. 3D modeling and equipment operation rules are put...
The information economics and its platform can input the vigor into manufacturing industry, i.e. garment industry, and help to increase its ability for good return, can promote the level of technology and management of garments from a labor-intensive industry, and can move it toward the accurate management. The platform is designed as comprehensive information platform by the authors' research team...
We have investigated a technique for recognising faces invariant of facial expressions. We apply multi-linear tensor algebra, which subsumes linear algebra, to analyse and recognise 3D face surfaces. This potent framework possesses a remarkable ability to deal with the shortcomings of principle component analysis in less constrained situations. A set of vector spaces can be used to represent the variation...
Developing sustainable urban environments is complex as it requires consideration of interacting social, economic and environmental sustain ability factors. The task is made even more difficult by the wide variety of stakeholders (e.g. planners, architects, businesses and the public) that may be involved in the process and the lack of a common language for all to understand. This paper describes a...
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