Shear-warp-based parallel volume rendering system

A volume rendering and staggered technology, applied in the field of information visualization, to achieve good flexibility and scalability, improve rendering speed, and ensure the effect of load balancing

Inactive Publication Date: 2011-04-27
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art, and based on the Shear-Warp alg

Method used

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] (1) Parallel volume rendering system initialization.

[0034] First start the master node as the server, and then start the slave nodes as the client. During the entire parallel volume rendering operation, the master node keeps monitoring the slave nodes.

[0035] (2) Process the dynamic joining and exiting requests of slave nodes.

[0036] This process is completed by the cooperation of the master node and the slave node;

[0037] If the master node receives a request from the slave node to dynamically join, it will add the slave node information to the slave node list that the master node is responsible for maintaining. The slave node information includes the slave node IP address and the scan line involved in the drawing task of the last frame Division, the drawing time spent on the previous frame drawing task, network tra...

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Abstract

The invention discloses a shear-warp-based parallel volume rendering system. The system is characterized in that: a distributed parallel visualization system is constructed on the basis of a high-speed shear-warp volume rendering algorithm aiming at the data visualization application requirement of a large-scale data field. Load balance between nodes and rendering speed are further improved by a task division method based on a scanning line and a load balance principle and an adaptive frame rate control strategy based on an army integrated air and missile defense (AIAMD) idea on the premise of guaranteeing quality of a visual image.

Description

technical field [0001] The invention relates to a parallel volume rendering system based on staggered deformation, and belongs to the technical field of information visualization. Background technique [0002] Direct volume rendering (referred to as volume rendering) is an important data field visualization method. Different from surface rendering based on multi-deformation, it directly synthesizes volume data into images according to certain mapping rules, which has rich expressiveness. Therefore, it has broad application prospects in various fields such as biology, medicine, computational fluid dynamics, finite element analysis, aerospace, nuclear explosion simulation, geological exploration, and meteorology. But at the same time, volume rendering also has the characteristics of huge amount of data and heavy calculation load. [0003] At present, the main volume rendering algorithms include Ray-Casting, Splatting, and Shear-Warp algorithms. Among them, the Shear-Warp al...

Claims

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Application Information

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IPC IPC(8): G06T15/08H04L29/08
Inventor 何兵吉志峰赵沁平郝爱民王莉莉
Owner BEIHANG UNIV
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