Frédéric Bosché

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This paper presents a system to manipulate 3D objects or navigate through 3D models by detecting the gestures and the movements of the hands of a user in front of a camera mounted on top of a screen. This paper more particularly introduces an improved skin color segmentation algorithm which combines an online and an offline model; and a Haarlet-based hand(More)
The construction industry lacks solutions for accurately, comprehensively and efficiently tracking the three dimensional (3D) status of buildings under construction. Such information is however critical to the successful management of construction projects: it supports fundamental activities such as progress tracking and construction dimensional quality(More)
This paper presents a new approach that allows automated recognition of three-dimensional (3D) Computer-Aided Design (CAD) objects from 3D site laser scans. This approach provides a robust and efficient means to recognize objects in a scene by integrating planning technologies, such as multi-dimensional CAD modeling, and field technologies, such as 3D laser(More)
In a reversal of historic trends, the capital facilities industry is expressing an increasing desire for automation of equipment and construction processes. Simultaneously, the industry has become conscious that higher levels of interoperability are a key towards higher productivity and safer projects. In complex, dynamic, and rapidly changing(More)
In construction, dimensional quality is critical but is very difficult to achieve, especially with built-in-place elements. As a result, dimensional Quality Assessment / Quality Control (QA/QC) must systematically be conducted, which often delays the value-adding work. Current methods for dimensional QA/QC are labor intensive, time consuming and therefore(More)
Use of automation in construction is increasing at a rapid pace because it provides ways of dealing with skilled labour shortages, and of improving safety, quality and productivity. Much of this automation revolves around a control loop in which planned and designed assets are compared with what is currently in place. Comparing sensed and designed spatial(More)
The construction industry remains one of the riskiest of all. This risk is mainly the result of a poorly controlled, and thus uncertain, environment. For instance, construction progress is often improperly controlled, resulting in some unnoticed errors with considerable impact on later project activities, and ultimately project success. Better progress(More)