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Orthogonal Bisection of an Image
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This document describes a filter called itkOrthogonalBisectImageFilter, which bisects an input image and copies each divided region into two separate output images. Pixel values are copied while maintaining their original pixel location. The output images [...]

Exponentiation Filters
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Two simple filters are contributed to compute the exponential of an image: the first one to raise the image to the power of a constant, the other one to raise the image to the power of the values provided in another image.

Entropy Image Filter
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This paper describes an intensity image filter for computing the entropy of pixel values contained within a neighborhood centered at each input pixel. The output image contains the calculated entropy for each input pixel location. This paper is accompanied [...]

itkMultipleUnlabeledImagesToLabeledImageFilter
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This document describes a filter called itkMultipleUnlabeledImagesToLabeledImageFilter, which takes multiple images as input and generates a single image of labeled pixels. Pixels to be labeled for each image are determined by an intensity threshold. [...]

An Image Filter for Counting Pixel Neighbors
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This papers describes an image filter that counts the number of neighbors a pixel has storing that value at the pixel's image index. Functionality is provided to 1) adjust the neighborhood size, 2) count only those pixels within a specific value range, and 3) [...]

Variance Image Filter
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This paper describes an intensity image filter for computing the variance of pixel values contained within a neighborhood centered at each input pixel. The output image contains the calculated variance at each input pixel location. Variance calculations can [...]

A Fast Approximation to the Bilateral Filter for ITK
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This document describes an implementation of an alternative bilateral filtering algorithm in ITK. This class implements the fast bilateral filter algorithm in ITK by taking the input image and organizing it into the required data structure as an ITK Image [...]

Efficient multithreading for manycore processor: Multidimensional domain decomposition using IntelĀ® TBB
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The Insight Toolkit (ITK) utilizes a generic design for image processing filters that allows many developers to rapidly implement new algorithms. While ITK filters benefit from a platform-independent and versatile multithreading capability, the current [...]

How to use the itk::NaryElevateImageFilter and itk::UnaryRetractImageFilter for the post-processing of medical 4D data
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The subject of the paper is to introduce a new class of 4D filters to itk.While it is very easy to load a 3D volume stored as a series of DICOM images with ITK, some convenience functions that are already available for 3D volumes are not yet available for the [...]

Introduction to ITK Resample In-Place Image Filter
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In this document we present an ITK image filter that outputs a new image with identical voxel contents but with modified physical space representation. The physical space representation of an image is modified to reflect the physical space transform on the [...]

Laplacian Mesh Deformation
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Deforming a 3D surface mesh while preserving its local detail is useful for editing anatomical atlases or for mesh based segmentation. This contribution introduces new classes for performing hard and soft constraints deformation in a flexible design which [...]

Computing Textural Feature Maps for N-Dimensional images
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This document describes a new remote module implemented for the Insight Toolkit ITK, itkTextureFeatures. This module contains two texture analysis filters that are used to compute feature maps of N-Dimensional images using two well-known texture analysis [...]

Direct Fourier Tomographic Reconstruction Image-To-Image Filter
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We present an open-source ITK implementation of a direct Fourier method for tomographic reconstruction, applicable to parallel-beam x-ray images. Direct Fourier reconstruction makes use of the central-slice theorem to build a polar 2D Fourier space from the [...]

Isotropic and Steerable Wavelets in N Dimensions. A multiresolution analysis framework.
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This document describes the implementation of the external module ITKIsotropicWavelets, a multiresolution (MRA) analysis framework using isotropic and steerable wavelets in the frequency domain. This framework provides the backbone for state of the art [...]

Flux driven medial curve extraction
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In this document it is described the implementation of the flux driven automatic centerline extraction algorithm proposed by Bouix et al. in 2004. This is based on a skeletonisation algorithm initially proposed by Siddiqi et al. in 2002, using properties of [...]

MR Parameter Map Suite: ITK Classes for Calculating Magnetic Resonance T2 and T1 Parameter Maps
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This document describes a suite of new multi-threaded classes for calculating magnetic resonance (MR) T2 and T1 parameter maps implemented using the Insight Toolkit ITK (www.itk.org). Similar to MR diffusion tensor imaging (DTI), MR T2 and T1 parameter maps [...]


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ISSN 2327-770X
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