Citation Link: https://nbn-resolving.org/urn:nbn:de:hbz:467-1769
Untersuchung eines neuartigen 2D-gestützten 3D-PMD-Bildverarbeitungssystems
Source Type
Doctoral Thesis
Author
Issue Date
2001
Abstract
Basis of this thesis is the introduction of a 2D/3D-camera concept based on a
surface-covering greyscale camera, supported by individual depths data. Already the use of only individual depths data in combination with a complete greyscale image simplifies a 3D-image processing considerably or makes it actually possible (e.g. 3D-object reconstruction, motion analysis …).
The thesis presented here is mainly based on the research into already existing
theories on 2D- and 3D-image processing and their value in regard to the above
mentioned sensor arrangement. Due to the direct spatial relation between greyscale and depths data the main focus lies on the registered data sources (synchronization of the scanning elements). Possible applications for the herein introduced new 3D-image processing are to be found wherever standard 2D-image processing concepts encounter difficulties or fail due to the missing depth information. Using only individual depths data in combination with a surface covering greyscale image, the recording and processing system offers a simple possibility for the effective utilization of the depths information. Already individual depths data offer simple means to:
classify objects
determine distance, orientation and size
determine the surface orientation
…
Next to the direct utilization of the individual depths data in such spots in the greyscale image that might lead to misinterpretation or have ambiguous meaning, the real depths data can also be used to reconstruct missing depths values by using the available greyscale data. Thus such procedures are applied which use a description of the relation between the greyscale and depths images (e.g. Shape-from-Shading).
surface-covering greyscale camera, supported by individual depths data. Already the use of only individual depths data in combination with a complete greyscale image simplifies a 3D-image processing considerably or makes it actually possible (e.g. 3D-object reconstruction, motion analysis …).
The thesis presented here is mainly based on the research into already existing
theories on 2D- and 3D-image processing and their value in regard to the above
mentioned sensor arrangement. Due to the direct spatial relation between greyscale and depths data the main focus lies on the registered data sources (synchronization of the scanning elements). Possible applications for the herein introduced new 3D-image processing are to be found wherever standard 2D-image processing concepts encounter difficulties or fail due to the missing depth information. Using only individual depths data in combination with a surface covering greyscale image, the recording and processing system offers a simple possibility for the effective utilization of the depths information. Already individual depths data offer simple means to:
classify objects
determine distance, orientation and size
determine the surface orientation
…
Next to the direct utilization of the individual depths data in such spots in the greyscale image that might lead to misinterpretation or have ambiguous meaning, the real depths data can also be used to reconstruct missing depths values by using the available greyscale data. Thus such procedures are applied which use a description of the relation between the greyscale and depths images (e.g. Shape-from-Shading).
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