Investigation of a phase-only correlation technique for anatomical alignment of portal images in radiation therapy
| Autor: | Allen G. Meek, Joseph Hanley, Lawrence E. Reinstein, Jia-Zhu Wang |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
medicine.medical_treatment
Physics::Medical Physics Fast Fourier transform Biophysics Image registration Image processing Biophysical Phenomena Correlation Robustness (computer science) Phase only correlation Radiation oncology medicine Humans Radiology Nuclear Medicine and imaging Computer vision Mathematics Radiological and Ultrasound Technology Phantoms Imaging business.industry Radiotherapy Planning Computer-Assisted Models Theoretical Radiographic Image Enhancement Radiation therapy Computer Science::Computer Vision and Pattern Recognition Radiographic Image Interpretation Computer-Assisted Artificial intelligence business Algorithm Algorithms |
| Zdroj: | Physics in Medicine and Biology. 41:1045-1058 |
| ISSN: | 1361-6560 0031-9155 |
| Popis: | A new image registration algorithm based on phase-only correlation is applied to portal images in radiation therapy to detect translational shift. The phase-only correlation shows a sharp peak in the correlation distribution as compared to the broad peak computed from conventional correlation using fast Fourier transform. In this paper, the algorithm of phase-only correlation is described and its applicability and robustness are tested when applied to portal images used in clinical radiation oncology. The results achieved give evidence that the phase-only correlation will deliver an alternative approach for image registration and image comparison, that may be applicable in routine clinical practice. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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