The VTK Journal is an Open Access on-line publication covering the domain of scientific visualization.

The unique characteristics of the VTK Journal include:

-Open-access to articles and reviews
-Open peer-review that invites discussion between reviewers and authors
-Support for continuous revision of articles, code, and reviews

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N-Dimensional Phase Unwrapping
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Although phase data can take on any value, it is generally only possible to measure phase as a principle value, i.e., wrapped within the range (-pi,pi]. Determining the unwrapped phase from its principle value is a topic of considerable interest in magnetic [...]

A Tutorial on Combining Nonlinear Optimization with CUDA
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Nonlinear optimization is a key component of many image registration algorithms. Improving registration speed is almost always desirable. One way to do this is to accelerate the optimization cost function using a parallel implementation. The purpose of this [...]

A generic interpolator for multi-label images
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We present a generic interpolator for label images. The basic idea is to interpolate each label with an ordinary image interpolator, and return the label with the highest value. This is the idea used by the itk::LabelImageGaussianInterpolateImageFunction [...]

Anisotropic Diffusion in ITK
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Anisotropic Non-Linear Diffusion is a powerful image processing technique, which allows to simultaneously remove the noise and enhance sharp features in two or three dimensional images. Anisotropic Diffusion is understood here in the sense of Weickert, [...]

InsightToolkit Kinetic Analysis (itk::ka) Library
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This paper describes how to compile and use the Insight Toolkit Kinetic Analysis library (itk::ka), to perform analysis of dynamic medical images, along with a brief overview of the library source code. Supplied, are a set of interfaces to facilitate [...]

DICOM Spatial Transform IO in the Insight Toolkit
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This document describes a module that extends the Insight Toolkit, ITK, which reads DICOM Spatial Rogistration Object files in itk::Transform's. Currently, DICOM files are read by applying the DCMTK library as a backend. An itk::DCMTKTransformIO class can be [...]

Reproducible Research Training at Scipy 2014
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This article illustrates the process of performing reproducible research with existing open source tools.

A Flexible Variational Registration Framework
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In this article, we present an implementation of a flexible framework for non-parametric variational image registration, realized as part of ITK's finite difference solver hierarchy. In a variational registration setting, the transformation is found by [...]

A MultipleImageIterator for iterating over multiple images simultaneously
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Several applications such as multi-atlas segmentation require frequent iteration over multiple image volumes at the same time. Doing so with the regular ITK iterators is tedious and error prone as it requires updating each iterator at end of each iteration. [...]

Using TubeTK to Automatically Merge Volumes
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This article describes implementation of a CLI module to merge an image into the space of another adjacent image using the Insight Toolkit. The algorithm constructs a smoothly stitched image out of two or more smaller images. The overlapping regions of the [...]

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Publication of the Month
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Scalable Simple Linear Iterative Clustering (SSLIC) Using a Generic and Parallel Approach
by Lowekamp B., Chen D., Yaniv Z., Yoo T.

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