Methods:12 patients with PE were performed spiral CT volume scanning. Three dimensional and multiplanar images of pulmonary artery were obtained after post procession in the work station.
方法：回顾性分析12例PE患者，均行螺旋CT容积扫描，并在工作站进行图像后处理，获得肺动脉多平面重建图像及三维立体图像。
It shows that using the three dimension laser scanning and mapping system for measuring tree crown volume is practical and applicable.
研究表明，利用三维激光扫描系统测量树冠体积具有较强的实践意义和应用价值。
The imaging spectrometer using diffractive optics has compact construction, small volume and rapid scanning speed, and its practical ground manufacture have been visible.
采用二元光学元件的成像光谱仪结构紧凑，体积小，扫描速度快，已研制出地面实用型产品；
Results Each of scanning parameter, volume and density affected the noise on ct imaging.
结果扫描参数，受检体的体积及密度均影响CT图像噪声。
Objective: To explore the best choosing application of the spiral ct scanning parameters in measuring pulmonary volume.
目的：探讨螺旋CT在肺容积测量中扫描参数的选择应用。
This paper proposed a novel scanning structure of direct volume ct, which ADAPTS planar scanning and point detecting, called reverse geometry volume ct.
提出了一种新颖的直接体积CT扫描结构，即采用面状扫描与点状探测的倒置扫描结构。
Effects of the dot matrix scanning mode on the image data mapping within the display volume space, and on the attributes of voxels are analyzed in detail.
深入分析了点阵扫描模式对图像数据在显示空间的映射处理及体像素的影响。
Methods: Chemical method, volume method and scanning of electron microscope (SEM) were adopted respectively.
方法：化学法、容量法、电镜扫描。不同灌注液分别灌注并设对照组。
Spatial 3d point cloud can be quickly captured on object surface by laser scanning, however its data volume is huge.
三维激光扫描获得的点云数据，其数据量比较大。
Now the existing direct volume CT methods face two difficulties:first, how to get the projection data to reconstruct the 3D image exactly, including whether the scanning structure is practical;
目前直接体积CT主要存在两大困难：一是如何获得三维图像精确重建所需的投影数据，包括扫描方式的可实现性；
Cluster map scanning is necessary to ensure that no data on the outer volume will be overwritten by the hidden volume.
簇状图扫描是必要的，这可以确保外层卷的数据不会被隐藏卷覆盖。
After pre processing, the technique of direct 3d interpolation for rotational scanning images was used to convert the original rotary scanning images into regular volume data.
然后，根据心电及角度信号提取正确原始切片图像，进行预处理，并利用三维直接匹配插值方法对旋转扫描超声心动图像进行插值，获得规则体数据。
After pre processing, the technique of direct 3d interpolation for rotational scanning images was used to convert the original rotary scanning images into regular volume data.
然后，根据心电及角度信号提取正确原始切片图像，进行预处理，并利用三维直接匹配插值方法对旋转扫描超声心动图像进行插值，获得规则体数据。
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