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A ray-casting method for 3D visualization of weather radar data based on spatial jump acceleration

A technology of weather radar and space jump, applied in image data processing, 3D image processing, image enhancement, etc., can solve the problems of algorithm acceleration and low drawing efficiency of ray-casting algorithm

Active Publication Date: 2019-02-26
NANJING UNIV OF INFORMATION SCI & TECH
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  • Description
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Problems solved by technology

[0006] Among many 3D visualization methods and methods, the ray casting algorithm in the volume rendering algorithm can achieve good rendering results, but the ray casting algorithm has the problem of low rendering efficiency, and the algorithm must be accelerated

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  • A ray-casting method for 3D visualization of weather radar data based on spatial jump acceleration
  • A ray-casting method for 3D visualization of weather radar data based on spatial jump acceleration
  • A ray-casting method for 3D visualization of weather radar data based on spatial jump acceleration

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Embodiment Construction

[0037] Below in conjunction with accompanying drawing and specific embodiment the technical solution of the present invention is described in further detail:

[0038] The present invention aims at the deficiencies of the existing spatial jump accelerated ray projection algorithm, and combines the characteristics of the weather radar base data, and proposes a space jump accelerated ray projection method applied to the three-dimensional visualization of weather radar data, such as figure 1 As shown, this method can preserve the details of the drawn cloud body as much as possible without losing the drawing speed.

[0039] The research object of the present invention is the radar base data, which has the characteristics of irregular shape and high uncertainty, and the details will be lost when drawing with the ray projection algorithm accelerated by space jump. The present invention proposes an improved spatial jump ray projection method for radar base data, which classifies voxel...

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Abstract

The invention discloses a weather radar data three-dimensional visualization space jump acceleration ray casting method. Volume elements in a data field are classified, different jump steps are adopted in different volume element areas, and in a condition of not losing a drawing speed, drawn cloud body details are kept as far as possible, and the application prospect is wide.

Description

technical field [0001] The invention relates to a three-dimensional visualization space jump acceleration light projection method of weather radar data, in particular to a space jump acceleration light projection method based on weather radar basic data. Background technique [0002] With the development of 3D graphics hardware and the establishment of 3D visualization software standards, 3D visualization technology has developed rapidly, enabling researchers to transform traditional 2D plane displays into 3D stereoscopic displays. 3D visualization technology has penetrated into almost every field of science and engineering, including meteorology. The 3D visualization of meteorological data is a direction of the combination of meteorology and 3D visualization technology. [0003] Meteorological forecast is closely related to people's production and life, accurate forecast of disastrous weather can greatly reduce the loss of people's life and property. Accurate forecasting o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T15/04G06T15/08
CPCG06T15/04G06T15/08G06T2207/10028G06T2207/10044G06T2207/30192G06T2215/06
Inventor 毕硕本陆源周浩那泽潘健
Owner NANJING UNIV OF INFORMATION SCI & TECH
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