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Protocol-based volume visualization

A volume and protocol technology, applied in the field of visualized three-dimensional volume system, can solve problems such as non-reproducibility, and achieve the effect of increasing speed and reducing cost

Active Publication Date: 2006-01-25
KONINKLIJKE PHILIPS ELECTRONICS NV
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Problems solved by technology

Moreover, it may lead to subjective results, i.e., if the same treatment is performed repeatedly under the control of the same or different operators, the results may not be reproducible

Method used

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Embodiment Construction

[0041] The system and method used for visualizing volumes will be described as a medical application. It will be appreciated that the system and method can be used in other applications as well, generally for the detection of internal parts and structures that can be used in all objects that can be measured using such a system, characterized in that the measurement results are processed to generate a representation of the object the fact that a 3-dimensional data set (a 3D array of measurements) of (part of) a volume of , and wherein each data element or voxel is associated with a particular location in the object and has a value associated with one or more local properties of the object, For example, for X-ray inspection of objects that cannot be easily opened at the time available. To describe the system and method according to the invention, first an overview of volume visualization algorithms is given, followed by examples of visualization tasks that are not easily handled...

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Abstract

The present invention provides a system for visualizing a 3D volume, in particular for medical applications, includes an input 1010 for receiving a three-dimensional set of data representing voxel values of the 3D volume. The data set is stored in a storage 1030. A processor projects the volume onto an imaginary 2D projection screen from a predetermined viewpoint. For each pixel of the 2D projection image a ray is cast through the pixel and through the volume. A protocol is used that, while traversing along ray positions within the volume, determines a rendering algorithm and / or rendering parameters in dependence on the ray position. For each ray position the determined rendering algorithm / parameters are used to calculate a contribution to a pixel value of the pixel based on at least one voxel value within a predetermined range of the ray position. An output 1040 is used for providing pixel values of a 2D image for rendering on a display.

Description

technical field [0001] The present invention relates to systems for visualizing three-dimensional (hereinafter "3D") volumes, particularly for medical applications. The invention also relates to software for the system. The invention further relates to a method of visualizing a three-dimensional 3D volume. Background technique [0002] With the increased capabilities of digital processing hardware (either in the form of dedicated pre-programmed hardware or programmable processors), it has become possible in practical systems to employ rendering algorithms to generate high-quality images from volume data sets. For medical applications, volume data sets are typically obtained using a 3D scanner such as a CT (Computed Tomography) scanner or an MR (Magnetic Resonance) scanner. Volume datasets consist of three-dimensional collections of scalar values. The location where these values ​​are given is called a voxel, which is short for volume element. The value of a voxel is call...

Claims

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Application Information

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IPC IPC(8): G06T15/00G06T15/08
CPCG06T15/08
Inventor F·A·格里特森S·洛伯格特
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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