Key Techniques of Remote Visualization of 3D Seismic Volume Supporting Multi-user

doi:10.16182/j.issn1004731x.joss.201807014

Abstract

Abstract: During the remote visualization of large-scale seismic volume for multi-user concurrent interaction, traditional task scheduling approaches could lead to large amount of I/O operation and repetitive calculation of volume texture blocks. So, a more efficient multi-task scheduling strategy was proposed, which rearranged the schedule order of volume rendering tasks through computing their viewpoint correlation. Furthermore, an optimized design of LRU based on parallel protection lock was made. In order to improve the network transmission efficiency and quality of seismic visualization image simultaneously, and to meet the requirement of users to observe the region of interest (ROI) preferentially, the progressive transmission technique with ROI-first was developed. Experimental results show that the proposed methods can improve the hit rate of texture block buffer by 6.2%, reduce the average rendering time by 14%, and clearly show the visual results of seismic volume through only transmitting 44.5% of whole image data in the low-speed network.

Key words: large-scale seismic volume, remote visualization, multi-viewpoint, multi-task scheduling

CLC Number:

TP391.9

Ji Lianen, Zhao Ni, Liang Shiyi, Huang Bo. Key Techniques of Remote Visualization of 3D Seismic Volume Supporting Multi-user[J]. Journal of System Simulation, 2018, 30(7): 2540-2549.

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