A digital image of the object is captured and the object is recognized from plurality of objects in a database. An information address corresponding to the object is then used to access information and initiate communication pertinent to the object.

Image Capture and Identification System and Process

Augmented reality applications in design and manufacturing

This paper concludes that 4D models are a useful alternative to project scheduling tools like CPM networks and bar charts. They enable more people to understand a schedule quickly and identify potential problems. By developing a 4D model for a commercial construction project, we were able to detect the incompleteness of the original schedule, find inconsistencies in the level of detail among the schedule activities, and discover an impossible schedule sequence. We were also able to anticipate potential time-space conflicts and accessibility problems. The results of the case study show that 4D models are effective in evaluating the executability of a construction schedule. The case study also highlighted the need for improvements to 4D tools. 4D tools should include bar charts, component lists, and annotation tools in their graphical user interface. Automating schedule data preparation and 4D model generation in the design stages of a project can expedite 4D model development and use. Users need to be able to generate 4D models at multiple levels of detail and generate and evaluate alternative scenarios rapidly.

Closure of "Feasibility Study of 4D CAD in Commercial Construction"

In the past two decades, augmented reality (AR) has received a growing amount of attention by researchers in the manufacturing technology community, because AR can be applied to address a wide range of problems throughout the assembly phase in the lifecycle of a product, e.g., planning, design, ergonomics assessment, operation guidance and training. However, to the best of authors’ knowledge, there has not been any comprehensive review of AR-based assembly systems. This paper aims to provide a concise overview of the technical features, characteristics and broad range of applications of AR-based assembly systems published between 1990 and 2015. Among these selected articles, two thirds of them were published between 2005 and 2015, and they are considered as recent pertinent works which will be discussed in detail. In addition, the current limitation factors and future trends in the development will also be discussed.

/pdf/a-comprehensive-survey-of-augmented-reality-assembly-4v9flaozri.pdf

A comprehensive survey of augmented reality assembly research

Exploring the Contributions of Involving Ordinary Users in Ideation of Technology-Based Services

This paper presents a methodology and a system for augmented reality aided assembly work. We concentrate in particular on the requirements on information processing and data flow for implementing augmented assembly systems in real life production environments. A pilot case with an augmented assembly task at the Finnish tractor company Valtra is described.

/pdf/integration-of-design-and-assembly-using-augmented-reality-3n9o5dy1eq.pdf

Integration of Design and Assembly Using Augmented Reality

In this paper, we present novel interactive approaches for outdoor augmentation with a mobile device. Our implementations perform real-time on simple mini-PC equipment, using feature tracking for estimating camera motion when user turns the mobile device and examines the augmented scene. We consider two use scenarios. The first one is always applicable with any 3D model for ad hoc use without prior knowledge or calibration process. The second one uses GPS for defining the viewing location and Google Earth KML-files for defining the augmented object and its placement. This way 3D object placed on Google Earth can be viewed on site without any further data conversion steps. We foresee that this functionality can later be extended to automatically download and visualize any Google Earth content on a location aware mobile device, i.e. “Google Earth on Earth”.

Interactive outdoor mobile augmentation using markerless tracking and GPS

A modular real-time diminished reality pipeline for indoor applications is presented. The pipeline includes a novel inpainting method which requires no prior information of the textures behind the object to be diminished. The inpainting method operates on rectified images and adapts to scene illumination. In typically challenging illumination situations, the method produces more realistic results in indoor scenes than previous approaches. Modularity enables using alternative implementations in different stages and adapting the pipeline for different applications. Finally, practical solutions to problems occurring in diminished reality applications, for example interior design, are discussed.

Diminished reality for augmented reality interior design

In this paper, we describe the demonstration system in which a wooden 3D puzzle is assembled using an augmented reality system. The 3D puzzle emulated a simplified assembly task in a factory. We use the 3D puzzle as a means to study how to implement an augmented assembly system to a real setting in a factory and explore the advantages and disadvantages of augmented reality techniques. With this demonstration system we also test, demonstrate and evaluate different input modalities for augmented assembly setup. Furthermore, the demonstration system helps us better interact with industry and get invaluable feedback.

Demonstration of assembly work using augmented reality

In this paper, we present a method for generating a texture for hiding a marker in augmented reality applications. The texture is generated using the neighbourhood of the detected marker area in the image, which enables photorealistic results. The method presented here shows clear potential for real time use.

Sanni Siltanen

Papers

Integration of Design and Assembly Using Augmented Reality

Interactive outdoor mobile augmentation using markerless tracking and GPS

Diminished reality for augmented reality interior design

Demonstration of assembly work using augmented reality

Texture generation over the marker area