用三维奇异值分解压缩生物体数据,重建快且精度高。
Structured 3D-SVD: A Practical Framework for the Compression and Reconstruction of Biological Volumetric Images
- 将三维生物图像用结构化3D-SVD表示,支持渐进式重建。
- 在鱼和脑部数据上,重建质量接近塔克分解,计算更快。
- 低截断率即可保留主要结构,适合医学影像压缩与分析。
本文提出一种实用的框架Structured 3D-SVD,用于生物体数据的重建、压缩与分析。受矩阵奇异值分解(SVD)逻辑启发,该方法在空间域中表示三阶体数据,并通过有序的拟奇异系数实现渐进式重建。实验在两个生物体数据集上进行:一条鱼的全体积扫描和一个脑部扫描。结果表明,Structured 3D-SVD的重建质量接近塔克分解(Tucker decomposition),但计算时间更短,且在准确性和运行时间上均优于经典多线性分解(CPD)。此外,渐进重建分析显示,较低的截断级别即可保留主要体结构,更高截断级别则带来更精细的重建。
原文摘要 · Abstract (English)
This work introduces Structured 3D-SVD as a practical framework for the reconstruction, compression, and analysis of biological volumetric data. Inspired by the logic of matrix singular value decomposition (SVD), the proposed approach represents third-order volumetric data in the spatial domain and supports progressive reconstruction through ordered quasi-singular coeffients. The experimental evaluation was carried out on two biological volumetric datasets: one full-volume scan of a fish and another of a brain. The results show that Structured 3D-SVD achieves reconstruction quality close to that of Tucker decomposition while requiring shorter computation times and outperforms canonical polyadic decomposition (CPD) in both accuracy and runtime. In addition, a progressive reconstruction analysis shows that relatively low truncation levels are sufficient to preserve the main volumetric structures, while higher truncation levels lead to more detailed reconstructions.
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