Regression forests for efficient anatomy detection and localization in computed tomography scans
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...Regression based voting: Since the introduction of the Generalised Hough Transform [19] voting based methods have been shown to be effective for locating shapes in images, and there have been many variants....
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...For instance, this could be the mean, d̄, and covariance Sd of these samples, or the full set of samples....
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...Our method differs from this in that we use an explicit shape model to find the best combination of points....
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290 citations
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...7, the conventional organ localization framework using regression forest [43], [44] does not address well the purpose of candidate region generation for segmentation where extremely high pixel-to-pixel recall is required since it is mainly designed for organ detection....
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...Aggregation can be done with non-maximum suppression on prediction voting maps, mean aggregation [43], cluster medoid aggregation [45], and the use of local appearance with discriminative models to accept or reject predictions [44]....
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...1) Regression Forest: Object localization by regression has been studied extensively in the literature including [43], [45], [44]....
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...Conventional organ localization methods using random forest regression [43], [44], which we explain in Sec....
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245 citations
Cites background from "Regression forests for efficient an..."
...2013), anatomy detection in computed tomography (Criminisi et al. 2013), and segmentation of echocardiographic images (Verhoek et al....
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...…brain tumor segmentation (Bauer et al. 2012; Zikic et al. 2012), brain extraction (Iglesias et al. 2010), classification of Alzheimer’s disease (Gray et al. 2013), anatomy detection in computed tomography (Criminisi et al. 2013), and segmentation of echocardiographic images (Verhoek et al. 2011)....
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241 citations
Cites background or methods from "Regression forests for efficient an..."
...RFs have been shown to be effective in a wide range of classification and regression problems [16], [17], [18]....
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...In related work, [17] and [16] produce votes in higher dimensional spaces (3D or 6D), but work directly with the vector votes rather than accumulator arrays....
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...[16] used RF regression to vote for the positions of the sides of bounding boxes around organs in CT images....
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References
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...The second algorithm (‘Simplex’) is our own implementation and works by maximizing correlation-coefficient between the aligned images using the simplex method as the optimizer (Nelder and Mead, 1965)....
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"Regression forests for efficient an..." refers methods in this paper
...This technique has been shown to increase the generalization of tree-based predictors (Ho, 1998)....
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5,490 citations