Optimized 3D coordinate reconstruction from paired stereographs using a calibrated phantom
| Autor: | J.T. Bryant, C.F. Small |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Observer Variation
Propagation of uncertainty Focal point Computer science Computation 3D reconstruction Biophysics Reconstruction algorithm Iterative reconstruction Imaging phantom Models Structural Radiography Stereoradiography Software Design Calibration Image Processing Computer-Assisted Calculus Algorithm Algorithms |
| Zdroj: | Journal of Biomedical Engineering. 15:163-166 |
| ISSN: | 0141-5425 |
| Popis: | A refinement to a previously described three-dimensional reconstruction algorithm based on point identification in calibrated non-orthogonal radiograms (stereo-pairs) is described. The modification involves a computation of the focal point magnitude of the point in three dimensions, analogous to focusing in two dimensions, as well as the most likely location of the target point in 3-space; the focal point magnitude may be thought of as the precision of the point identification. Multiple observer studies of the same stereopair can be used to estimate three-dimensional reconstruction accuracy by providing an average location and a mean distance from average. Both measures are useful parameters for initial selection of bone landmark references and for error propagation studies. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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