Dragonfly 3D World News

研究用 micro-CT 扫描 36 颗经三种方式涂布封闭剂的离体前磨牙，数据导入 Dragonfly 3D World 2024.1 做阈值分割与 ROI Painter 手动修正，再用 Basic Properties 面板自动计算各材料层体积，间接得出封闭剂层孔隙率。结果显示新型压电 Vibrospiral 涂布的孔隙体积百分比最低（3.5%），显著优于 K-file（22.01%）和 Lentulo 螺旋（19.21%）。Researchers scanned 36 extracted premolars obturated with three sealer-placement techniques by micro-CT, imported the data into Dragonfly 3D World 2024.1 for threshold-based segmentation with manual ROI refinement, and computed each material layer's volume via the Basic Properties panel to derive sealer void percentages. The novel piezoelectric Vibrospiral achieved the lowest void volume (3.5%), significantly outperforming K-file (22.01%) and Lentulo spiral (19.21%).

研究将鼠类骨骼的高分辨率 micro-CT 数据按比例放大，探索生成保留骨小梁解剖结构的可打印 3D 模型。作者把原始 .stl 网格载入 Dragonfly 3D World 2024.1，以软件测得的总体积、表面积与长宽高为基准，系统对比了不同网格算法、编码与单位导出条件下的文件体积与网格误差，选定最优导出方案后用 FDM 与 SLA 成功打印出模型。The study scales high-resolution rodent micro-CT data to generate 3D-printable bone models that preserve trabecular anatomy. The original .stl meshes were loaded into Dragonfly 3D World 2024.1, whose measured total volume, surface area, and dimensions served as the baseline for systematically comparing meshing algorithms, encodings, and export units; the selected export settings were then successfully printed via FDM and SLA.

Comet 即将推出的 2027 版主打汽车 CT 检测：基于 Meta Segment Anything Model（SAM）的 AI 实例分割可一键分离孔隙、夹杂、焊缝缺陷等目标并单独测量；新增亚体素多重网格（Subvoxel Multi-Mesh），把连通结构拆成独立标注的网格做定量分析，另有 CAD 对比与集成报告功能。Comet's upcoming 2027 release targets automotive CT inspection: SAM-based AI instance segmentation separates pores, inclusions, and weld defects with one click for individual measurement; the new Subvoxel Multi-Mesh splits connected structures into independently labeled meshes for quantitative analysis, plus CAD comparison and integrated reporting.

官方应用笔记对比了 Otsu 阈值法与 AI 分割在铸件孔隙检测上的差异：传统方法会漏掉窄缝状孔隙和低对比度缩松，而在 Comet Yxlon 高分辨率 CT 数据上训练的 AI 模型能稳定检出这些细节，且泛化到新样品时依然可靠。The official application note compares Otsu thresholding vs. AI segmentation for casting porosity: conventional methods miss narrow crack-like voids and low-contrast shrinkage defects, while the AI model trained on Comet Yxlon high-resolution CT data detects these details reliably and generalizes well to new samples.

官方汇总了最新版本的核心能力：亚体素多重网格实现可重复的精确表面测量；名义 vs 实际（CAD 对比）工作流一键化并支持自动配准；Fast Split 用 GPU 加速做实例分割；报告生成器可导出带测量数据、公司 Logo 的 Word/PDF/HTML 报告。Official roundup of the latest release: Subvoxel Multi-Mesh for repeatable, precise surface measurements; one-click nominal-vs-actual (CAD comparison) workflow with auto registration; GPU-accelerated Fast Split instance segmentation; Report Builder exporting Word/PDF/HTML reports with measurements and company logo.

官方长文阐述现代 CT 软件的关键需求：高分辨率可视化是第一步，分割精度决定测量质量。3D World 直接集成了 Meta SAM 与 Cellpose-SAM，开箱即用的一键分割大幅减少人工修正，并加速标注数据以训练专用模型。The official long-form article explains key requirements of modern CT software: high-resolution visualization comes first, segmentation accuracy determines measurement quality. 3D World integrates Meta SAM and Cellpose-SAM out of the box — one-click segmentation cuts manual correction and speeds up annotating training data for dedicated models.

Dragonfly 团队访谈了马普胶体与界面研究所生物材料部门负责人 Dr. Emeline Raguin，聊了她使用 3D World 的历程、软件对科研产出的影响，以及她几乎每天都在用的功能，偏生命科学方向的用户值得一看。The Dragonfly team interviews Dr. Emeline Raguin, Group Leader of Biomaterials at the Max Planck Institute of Colloids and Interfaces, about her journey with 3D World, its impact on her research output, and the features she uses almost daily — worth a read for life-science users.

2025 版引入 Meta SAM 实现免训练的一键标注、亚体素精度的表面重建引擎，以及 GPU 加速的滤波去噪（官方称最高比 CPU 快 100 倍，1024³ 数据集上 Canny 滤波从 55 秒降到 1.4 秒）。适合对照了解 2027 版的演进路线。The 2025 release introduced Meta SAM for training-free one-click annotation, a sub-voxel surface reconstruction engine, and GPU-accelerated filtering/denoising (up to 100x faster than CPU per Comet: Canny filter on a 1024³ dataset dropped from 55s to 1.4s). Useful context for the 2027 roadmap.

黄病毒在宿主内质网形成的病毒复制细胞器（vROs）中复制。研究用 Dragonfly 3D World 对三维显微图像做分割与可视化，揭示 Atlastin-2 介导的内质网膜栓系对黄病毒复制的关键作用。Flaviviruses replicate inside virus-induced ER invaginations (vROs). The study used Dragonfly 3D World to segment and visualize 3D microscopy volumes, revealing that Atlastin-2-mediated ER membrane tethering is critical for flavivirus replication.

对 114 例人类与 1468 例 30 属非人灵长类标本的蝶鞍形态做比较研究，文中用 Dragonfly 3D World 处理 micro-CT 三维数据，分析鞍背新描述的背鞍孔的演化信号与发育特征。Comparative study of sella turcica morphology across 114 humans and 1,468 non-human primate specimens; Dragonfly 3D World was used to process micro-CT volumes to analyze the evolutionary signal and development of the newly described foramen dorsum sellae.

针对肝纤维化评估建立冻干多模态工作流，让同一标本依次完成 micro-CT 成像、组织学与分子检测。研究用 Dragonfly 3D World 做 micro-CT 三维重建与定量分析，兼顾无损 3D 成像与下游分析。A freeze-dry multimodal workflow for liver fibrosis assessment enabling sequential micro-CT imaging, histology, and molecular profiling on the same specimen; Dragonfly 3D World was used for micro-CT 3D reconstruction and quantitative analysis.

揭示弓形虫等顶复门寄生虫通过双甲基转移酶机制启动运动。研究用 Dragonfly 3D World 对三维显微成像数据做分割与可视化，解析顶端细胞骨架的空间激活过程。Uncovers a dual methyltransferase mechanism initiating motility in apicomplexan parasites such as Toxoplasma gondii; Dragonfly 3D World was used to segment and visualize 3D microscopy data of apical cytoskeletal activation.