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Automatic multi-threshold-based multilayer coloring body drawing method

A multi-threshold, coloring body technology, applied in 3D image processing, image data processing, instruments, etc., can solve the problems of complex preprocessing steps and high calculation costs, and achieve low calculation and storage costs and good adaptability Effect

Active Publication Date: 2014-03-19
INST OF AUTOMATION CHINESE ACAD OF SCI
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Problems solved by technology

The method using segmentation technology requires complex preprocessing steps, which is computationally expensive and brings additional space and time overhead to the rendering process.

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  • Automatic multi-threshold-based multilayer coloring body drawing method
  • Automatic multi-threshold-based multilayer coloring body drawing method
  • Automatic multi-threshold-based multilayer coloring body drawing method

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0035] figure 1 The structural representation of the multi-layer coloring volume rendering system based on automatic multi-threshold proposed by the present invention, such as figure 1 As shown, the system includes a threshold generating module and a drawing module, wherein:

[0036] The threshold generation module is used to generate a threshold sequence according to the voxel sample input by the user, in the threshold sequence, every two thresholds are a group, and each group of thresholds contains a high threshold and a low threshold;

[0037] The rendering module is used to perform multi-layer coloring on the input volume data according to the threshold sequence to generate a colored output image.

[0038] Further, ...

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Abstract

The invention discloses an automatic multi-threshold-based multilayer coloring body drawing system. The system comprises a threshold generation module and a drawing module, wherein the threshold generation module generates a threshold sequence according to the input voxel sample; and the drawing module performs multilayer coloring according to the threshold sequence relative to volume data and generates a colored output image. The invention also provides an automatic multi-threshold-based multilayer coloring body drawing method. Compared with the prior art, the automatic multi-threshold-based multilayer coloring body drawing system has the advantages that the discrimination effect of the multilayer structure is obvious, the volume data can be subjected to layered coloring, the data do not need to be segmented in advance, the memory and computing cost in the drawing process are low, and the efficiency is high. The system has important application values in the fields of visualization in scientific computing and visualization in medical images.

Description

technical field [0001] The invention belongs to the technical field of computer graphics and visualization, and in particular relates to a multi-layer coloring volume rendering method based on automatic multi-threshold, which can be used for visualization of three-dimensional scalar volume data. Background technique [0002] The volume rendering technology of 3D scalar volume data can help people observe and mine the information contained in 3D scalar volume data (such as CT slice data), and has important application value in the fields of scientific computing visualization and medical image visualization. [0003] There are many ways to realize the volume rendering of 3D scalar volume data, from the calculation order, there is the voxel projection method of the object order (refer to the literature "Rottger et al. 2000. Hardware-Accelerated Volume And Isosurface Rendering Based On Cell-Projection ”) and image sequence ray tracing method (refer to "Parker et al.2005.Interact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/08
Inventor 田捷杨飞李秀丽杨凤杨彩云
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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