Title :
Effect of the number of external markers in multimodal 3-D image registration
Author :
Abche, A.B. ; Tzanakos, G.S. ; Micheli-Tzanakou, E.
Author_Institution :
Dept. of Biomed. Eng., Rutgers Univ., Piscataway, NJ, USA
Abstract :
The minimum number of external markers that is needed for a multimodal 3-D image registration is studied quantitatively by using Monte-Carlo techniques. Using computer simulation, test images are generated over the head in both modalities using a predefined transformation. The optimized transformation obtained from a set of matched external markers using the simplex minimization method followed by a variable metric method is applied to these images to study how good the registration is with a given number of markers. The authors studied the χ2 per degree of freedom and the residuals as a function of the number of external markers. It is found that the registration is optimum for 10 markers and above
Keywords :
Monte Carlo methods; biomedical NMR; image registration; medical image processing; minimisation; positron emission tomography; single photon emission computed tomography; MRI; Monte-Carlo techniques; SPECT; anatomical adjustments; computer simulation; computerised tomography; multimodal 3-D image registration; number of external markers; positron emission tomography; simplex minimization method; variable metric method; Biomedical engineering; Computed tomography; Computer simulation; Costs; Image generation; Image registration; Maximum likelihood estimation; Physics; Positron emission tomography; Testing;
Conference_Titel :
Bioengineering Conference, 1993., Proceedings of the 1993 IEEE Nineteenth Annual Northeast
Conference_Location :
Newark, NJ
Print_ISBN :
0-7803-0925-1
DOI :
10.1109/NEBC.1993.404368
