CITK - an architecture and examples of CUDA enabled ITK filters
There is great interest in the use of graphics processing units (GPU)for general purpose applications because the highly parallel architectures used in GPUs offer the potential for huge performance increases. The use of GPUs in image analysis applications has [...]

GPU Volume Ray Casting of two Volumes within VTK
No opinion
We have modified the current VTK volume rendering on GPU to allow simultaneous rendering of two volumes, each of them with its own color and opacity transfer functions. These changes have led to the creation of two new C++ classes and several GLSL shaders. We [...]

OpenCL accelerated GPU binary morphology image filters for ITK
No opinion
Binary morphological operations are fundamental tools in image processing but the processing time scales with the number of pixels thus making them expensive operations on the CPU for larger 3D datasets that typically appear in medical imaging. Since erosion [...]

GPU and CPU implementation of Young - Van Vliet's Recursive Gaussian Smoothing Filter
This document describes an implementation for GPU and CPU of Young and Van Vliet's recursive Gaussian smoothing as an external module for the Insight Toolkit ITK, version 4.* In the absence of an OpenCL-capable platform, the code will run the CPU [...]

Adding Refined Isosurface Rendering and Shadow Mapping to vtkGPUVolumeRayCastMapper
No opinion
In the medical simulation world the use of isosurfaces is a common action, as the information from some sources, e.g. CTs, is very well defined, and the isosurface can be easily set. Additionally, in any simulator shadows are a necessary addition to increase [...]

An OpenCL implementation of the Gaussian pyramid and the resampler
Nonrigid image registration is an important, but resource demanding and time-consuming task in medical image analysis. This limits its application in time-critical clinical routines. In this report we explore acceleration of two time-consuming parts of a [...]

An ITK Implementation of Physics-based Non-rigid Registration Method
As part of the ITK v4 project efforts, we have developed ITK filters for physics-based non-rigid registration (PBNRR), which satisfies the following requirements: account for tissue properties in the registration, improve accuracy compared to rigid [...]

Automatic Segmentation of Head and Neck CT Images by GPU-Accelerated Multi-atlas Fusion
No opinion
Treatment planning for high precision radiotherapy of head and neck (H&N) cancer patients requires accurate delineation of critical structures. Manual contouring is tedious and often suffers from large inter- and intra-rater variability. In this paper, we [...]

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