Abstract
Semi-automatic measurement of objects with regular shapes can be performed efficiently in three steps: (1) selection of an object model and approximate alignment of its wire frame by an image analyst, (2) precise alignment to the image by a fitting algorithm, and (3) correction of fitting errors, again by the image analyst. This paper presents a new approach to perform these three steps using the same principle in all three steps. The developed approach allows the image analyst to drag both points and lines of the projected wire frame, including curved edges and contour edges, in order to align these features with the image contents. Using the described algorithm, there is no need for the image analyst to specify which parameters of the object models are to be adapted in order to improve the alignment. The performance of the fitting step is analyzed and compared with an alternative approach.
Original language | English |
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Pages (from-to) | 769-776 |
Number of pages | 8 |
Journal | Photogrammetric engineering and remote sensing |
Volume | 65 |
Issue number | 7 |
Publication status | Published - 1999 |
Keywords
- ADLIB-ART-2047