The sensing and display of three-dimensional information with emphasis on solid modelling: Status and applications
Abstract
The sensing of three dimensional information is addressed, the display/representation of three dimensional information is considered. With respect to the sensing of three dimensional information, a variety of approaches are discussed including the use of structured light, the use of displaced sensors to develop stereo pairs, and coherence processing and time of flight measurement. Other techniques described are interpretation of object motion as a measurement of depth perception, and general methods for utilizing depth of field. The advantages and disadvantages of each are discussed and comparisons made. Three dimensional display techniques is also discussed. The appraoches covered include graphics, stereo pairs, holograms, vibrating mirrors, and other optical systems. Applications are reviewed with examples of results such as the use of vibrating mirror technology for the three dimensional display of compterized tomography. Solid modelling as an approach to the display and representation of three dimensional information is reviewed. Following a definition of solid modelling, the advantages of this generic approach are reviewed and analyzed. The relationship of solid modelling to robotics and artificial intelligence is made, and trends cited with respect to hardware costs, portability of software, computational efficiency, display resolution, and neutral data bases. The paper concludes by giving examples of some of the key applications of solid modelling in the automative industry, aircraft industry and CAM, among others.
- Publication:
-
In AGARD Artificial Intelligence and Robotics 8 p (SEE N86-19627 10-37
- Pub Date:
- September 1985
- Bibcode:
- 1985air..agarR....G
- Keywords:
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- Computer Graphics;
- Contour Sensors;
- Image Analysis;
- Imaging Techniques;
- Three Dimensional Bodies;
- Display Devices;
- Imaging Techniques;
- Motion Perception;
- Remote Sensors;
- Robotics;
- Scene Analysis;
- Instrumentation and Photography