四川大学学报（自然科学版）2024，Vol.61Issue(4)：182-191,10.DOI:10.19907/j.0490-6756.2024.043002
基于多线程的岩心图像超维重建快速算法
A fast algorithm for super-dimension reconstruction of core images based on multithreading
摘要
Abstract
To tackle the limitation of the super-dimension algorithm based on adjacent block matching,where only allows one block to be reconstructed at a time during the reconstruction process,and the time-consuming dictionary search significantly hampers its efficiency,this paper proposesed two methods to opti-mize the computational speed of super-demension algorithms.Firstly,the sub-region reconstruction approach was applied to the super-dimensional algorithm based on adjacent block matching,introducing a region-based parallel reconstruction algorithm that enables simultaneous reconstruction of multiple blocks;Secondly,in the process of searching for each dictionary element,a dictionary parallel search matching method is em-ployed to accelerate its process;Finally,these two algorithms are combined,and 3D reconstruction based on 2D images was preformed for multiple times through the dictionary generated by the three different porosity training images.Through comparing the reconstruction results of the proposed algorithm,the adjacent block matching-based super-demension algorithm,and some traditional reconstruction algorithms,along with statis-tical feature parameters of the real three-dimensional structure of rock cores,and by comparing the reconstruc-tion time-consuming of different algorithms,the computational effectiveness of the improved super-demension algorithm presented in this paper was validated.关键词
三维重建/超维重建/多孔介质/并行算法/多线程Key words
3D reconstruction/Super-dimension algorithm/Porous medium/Parallel algorithm/Multi-threading分类
信息技术与安全科学引用本文复制引用
庞钊,滕奇志,马振川,吴晓红..基于多线程的岩心图像超维重建快速算法[J].四川大学学报（自然科学版）,2024,61(4):182-191,10.基金项目
国家自然科学基金(62071315) （62071315）
