Calibration of bi-planar radiography with a minimal-size calibration object
Methods based on bi-planar radiography enable performing 3D reconstructions of bone structures (e.g. spine)with much less radiation than CT. These methods require a calibration procedure that must be executed forevery examination to capture the geometrical parameters of the imaging system. In most o...
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| Outros Autores: | , , |
| Formato: | article |
| Idioma: | eng |
| Publicado em: |
2008
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| Assuntos: | |
| Texto completo: | https://repositorio-aberto.up.pt/handle/10216/100652 |
| País: | Portugal |
| Oai: | oai:repositorio-aberto.up.pt:10216/100652 |
| Resumo: | Methods based on bi-planar radiography enable performing 3D reconstructions of bone structures (e.g. spine)with much less radiation than CT. These methods require a calibration procedure that must be executed forevery examination to capture the geometrical parameters of the imaging system. In most of the publishedwork, calibration is performed using non-standard equipments of large dimensions that enclose the patient andintroduce undesirable objects into radiographs. In this paper we propose a method for geometrical calibrationof bi-planar radiography that aims at minimising the impact of calibration objects on the content ofradiographs, while requiring minimal adaptations to standard x-ray imaging systems. |
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