Multi-resolution volume rendering method based on intra-block interpolation

A multi-resolution, volume rendering technology, applied in the field of multi-resolution volume rendering based on block interpolation, which can solve the problems of difficult rendering, excessive data volume, and increased data preprocessing complexity.

Inactive Publication Date: 2014-12-10
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Abstract
  • Description
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Problems solved by technology

But when the amount of data is large and the memory limit is extremely serious, the method of adding additional data may cause the final data amo

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  • Multi-resolution volume rendering method based on intra-block interpolation
  • Multi-resolution volume rendering method based on intra-block interpolation
  • Multi-resolution volume rendering method based on intra-block interpolation

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[0092] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0093] Such as figure 1 As shown in FIG. 2 , it is a schematic flow chart of the multi-resolution volume rendering method based on intra-block interpolation in the present invention. A multi-resolution volume rendering method based on block interpolation, characterized in that it comprises the following steps:

[0094] S1. Divide the data body into multiple blocks of equal size according to the selected block size.

[0095] S2. Select an appropriate level of detail for each block obtained in step S1, specifically comprising the following steps:

[0096] S21. Subdivide each block obtained in step...

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Abstract

The invention discloses a multi-resolution volume rendering method based on intra-block interpolation. The multi-resolution volume rendering method based on the intra-block interpolation comprises the steps of data partitioning, blocking detail level selecting, secondary index establishing and volume rendering. The multi-resolution volume rendering method based on the intra-block interpolation has the beneficial effects that the introduction of extra data size and extra data preprocessing is avoided and the blocking effect of multi-resolution volume rendering is eliminated by use of intra-block border interpolation, and interpolation is completed by use of a GPU, and therefore, the volume rendering method is simpler and more efficient.

Description

technical field [0001] The invention belongs to the technical field of volume rendering methods, in particular to a multi-resolution volume rendering method based on block interpolation. Background technique [0002] Volume rendering is a technique for producing a two-dimensional image on the screen directly from a three-dimensional data field. A digital image corresponds to a two-dimensional array that describes the color and light intensity of data elements called pixels. Similarly, a three-dimensional data field can be described by a three-dimensional array with corresponding values ​​called voxels. Similar to the two-dimensional raster of digital images, the volume data field can be regarded as a three-dimensional raster. A typical three-dimensional data field is a three-dimensional data field of medical images. A series of medical image slice data are obtained by CT (computed tomography) or MRI (magnetic resonance) scanning, and these slice data are regularized accordi...

Claims

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Application Information

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IPC IPC(8): G06T15/08
Inventor 鲁才曹琛胡光岷
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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