geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Locally-Adaptive Similarity Metric For Deformable Medical Image Registration


, : Locally-Adaptive Similarity Metric For Deformable Medical Image Registration. Proceedings. IEEE International Symposium on Biomedical Imaging 2012(): 728-731

NlmCategory="UNASSIGNED">More and more researchers are beginning to use multiple dissimilarity metrics or image features for medical image registration. In most of these approaches, however, weights for ranking the relative importance between the selected metrics are empirically tuned and fixed for the entire image domain. Different parts of a medical image, however, may contain significantly different appearance properties such that a metric may only be applicable in certain image regions but less so in other regions. In this paper, we propose to adapt this weighting to generate a locally-adaptive set of dissimilarity metrics such that the overall metric set encourages proper spatial alignment. Using contextual information or via a learning procedure, our approach generates a vector weight map that determines, at each spatial location, the relative importance of each constituent of the overall metric. Our approach was evaluated on 2 datasets of 15 computed tomography (CT) lung images and 40 brain magnetic resonance images (MRI). Experiments show that our approach of using a locally-adaptive set of dissimilarity metrics gives superior results when compared against its non-region specific variant.

US$19.90

PMID: 25904993

DOI: 10.1109/ISBI.2012.6235651


Other references

Everett, G.M.; Borcherding, J.W., 1970: L-dopa: effect on concentrations of dopamine, norepinephrine, and serotonin in brains of mice. Large doses of L-dopa given to mice produced marked increases in brain dopamine, no change in norepinephrine, and a remarkable decrease in brain serotonin. This reduction apparently results from a release or displacement, or both, of serotonin fro...

Petrova, V.V.; Edeleva, N.V., 1996: Case of prolonged use of high doses of opiates and opioids by oncologic surgical patient. Anesteziologiia i Reanimatologiia: 21-22

Traudt, J., 1981: Can you afford to not use wind power?. Alternative sources of energy: (51) 21-22

Anonymous, .: Report of activities 1984. Research on forage spp. and other crops including fodder and oilseed rape, fodder beet, Cichorium intybus and Scorzonera hispanica is reported under the headings: improvement, seed production, technology, phytotechnical research, chemistry, cv. tr...

Takenouchi, Y., 1978: A chromosome study of the parthenogenetic rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae), in Japan. Weevils found infesting rice in Aichi Prefecture, Japan, in the early spring of 1976 were identified as Lissorhoptrus oryzophilus Kuschel, an important pest of rice in North America. As in California (but not other parts of North America), only fe...

Humphreys-Beher, M.G.; Macauley, S.P.; Chegini, N.; van Setten, G.; Purushotham, K.; Stewart, C.; Wheeler, T.T.; Schultz, G.S., 1994: Characterization of the synthesis and secretion of transforming growth factor-alpha from salivary glands and saliva. Whole saliva collected from rat, mouse, and human sources was found to contain high concentrations of transforming growth factor-alpha (TGF alpha) when analyzed by RIA. The concentrations of TGF alpha in unstimulated human saliva (age, 30-45 yr; n...

Verberne E.L.J.; Hassink J.; D.W.lligen P.; Groot J.J.R.; Van Veen J.A., 1990: Modelling organic matter dynamics in different soils. A mathematical model was developed to describe carbon (C) and nitrogen (N) cycling in different types of soil, e.g. clay and sandy soils. Transformation rates were described by first-order kinetics. Soil organic matter is divided into four fractio...

Bhattacharjee, S.; Chakrabarti, A.; Ghosh, A., 2008: Minimally invasive relocation of subluxated single piece AcrySof intraocular lens. We describe an ab externo technique for scleral fixation of a subluxated single piece AcrySof (Alcon, Texas, USA) intraocular lens (IOL). A 10-0 polypropylene transcleral suture brought out of a paracentesis and traced back to form a loop is used...

Westrich J.T., 1982: Kinetic model for organic matter decomposition in marine sediments. Eos, Transactions, American Geophysical Union 63(3): 91-92

Fields, K.B., 2004: More on the 4-year FM residency program. Family Medicine 37(1): 8; Author Reply 8-8; Author Reply 8