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Home | Research | Research Programs | 3D Technologies |
3D TechnologiesDigitizing and Tracking in a Dynamic EnvironmentIn the Digitizing and Tracking in a Dynamic Environment project, NRC-IIT partners with Neptec, McGill University, and the Canadian Space Agency to create new methods in the capture and processing of moving 3D objects in dynamically changing environments. By adding a fourth dimension (4D) to 3D metrology, these new methods will be able to scan and measure, process and display 3D objects in a dynamic environment. This will remove the need for complex mechanical infrastructures that maintain stability of the acquisition setup. The fast interactions and minimum delays of this new acquisition system can benefit a variety of applications. This project began on April 1, 2002, and will continue until April 1, 2004. Aim of the ProjectThis research aims to develop methods and algorithms to simplify the acquisition of rigid 3D objects in non-rigid environments; a fourth dimension (4D) is added to the general problem of 3D metrology, the time constraint. An analogy with conventional video imaging can be made; in 3D this will create a set of X,Y,Z, colour, and time coordinates. Research contextState of the art in accurate 3D acquisition systems still requires very constraining static and rigid environments for maintaining accuracy in the measurements. The slow acquisition speed of current 3D scanners, typically minutes for 1024x1024 high-resolution images, requires that the relative position between the 3D cameras and the object under inspection must be kept perfectly stable to maintain accuracy. Furthermore this constraint requires rigid objects and environments. Any deviation or perturbation during the acquisition will distort the measurements. This often results in complex and massive mechanical structures to maintain stability of the acquisition setup. Processing algorithms and display systems that can manage the vast amount of data created by 4D systems are also non-existent. Although warping of the images or the mesh can be used to create nice looking 3D models, in practice, no useful metrology measurement can be done because of the lack of 4D acquisition system, processing software, and display systems. Processing algorithms and display of the 3D data are today limited to static scenes. The first phase of this research will focus on:
Examples of applications:
Research ContactFrançois Blais Business ContactCharles Gauthier |
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