Accurate Measurement of Small Features in X‐Ray CT Data Volumes, Demonstrated Using Gold Grains

机译：X射线CT数据卷中的小功能的精确测量，使用金谷物证明

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Abstract >We present a method for measuring small, discrete features near the resolution limit of X‐ray computed tomography (CT) data volumes with the aim of providing consistent answers across instruments and data resolutions. The appearances of small features are impacted by the partial volume effect and blurring due to the data point‐spread function, and we call our approach the partial‐volume and blurring (PVB) method. Features are segmented to encompass their total attenuation signal, which is then converted to a volume, in turn allowing a subset of voxels to be used to measure shape and orientation. We demonstrate the method on a set of gold grains, scanned with two instruments at a range of resolutions and with various surrounding media. We recover volume accurately over a factor of 27 range in grain volume and factor of 5 range in data resolution, successfully characterizing particles as small as 5.4 voxels in true volume. Shape metrics are affected variably by resolution effects and are more reliable when based on image‐based caliper measurements than perimeter length or surface area. Orientations are reproducible when maximum or minimum axis lengths are sufficiently different from the intermediate axis. Calibration requires end‐member CT numbers for the materials of interest, which we obtained empirically; we describe a first‐principles calculation and discuss its challenges. The PVB method is accurate, reproducible, resolution invariant, and objective, all important improvements over any method based on global thresholds. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> >我们提出了一种测量X射线分辨率限制附近的小型离散特征的方法断层扫描（CT）数据卷，目的是在仪器和数据分辨率上提供一致的答案。小功能的外表受到部分体积效应和由于数据点扩展功能而模糊的影响，我们称之为部分体积和模糊（PVB）方法。特征被分段为包含它们的总衰减信号，然后将其转换为体积，否则允许使用体素的子集来测量形状和方向。我们展示了一组金粒上的方法，扫描了一系列分辨率和各种周围媒体的两种仪器。我们在数据分辨率中准确地恢复卷在27倍范围内，数据分辨率的5个系数，成功地表征小于5.4体素的粒子。形状度量通过分辨率效应可变地受到可变的影响，并且在基于基于图像的卡尺测量的基于周长长度或表面积时，更可靠。当最大或最小轴长度与中间轴线有足够的不同时，取向是可重复的。校准需要终端成员CT编号，以便我们获得凭经验;我们描述了一个第一个原则的计算并讨论其挑战。 PVB方法是准确，可重复的，分辨率不变和目标，通过基于全局阈值的任何方法进行所有重要的改进。</ p> </ abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-34677/'>《Journal of geophysical research. Solid earth: JGR》</a> <b style="margin: 0 2px;">|</b><span>2019年第4期</span><b style="margin: 0 2px;">|</b><span>共22页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ketcham R. A.&option=202" target="_blank" rel="nofollow">Ketcham R. A.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Mote A. S.&option=202" target="_blank" rel="nofollow">Mote A. S.;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of Geological Sciences Jackson School of GeoscienceUniversity of Texas at AustinAustin TX USA;</p> <p>Department of Geological Sciences Jackson School of GeoscienceUniversity of Texas at AustinAustin TX USA;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/163.html" title="地球物理学">地球物理学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=X‐ray microtomography&option=203" rel="nofollow">X‐ray microtomography;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=partial volume effect&option=203" rel="nofollow">partial volume effect;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=segmentation&option=203" rel="nofollow">segmentation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=volumetric data analysis&option=203" rel="nofollow">volumetric data analysis;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=image processing&option=203" rel="nofollow">image processing;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=3‐D measurement&option=203" rel="nofollow">3‐D measurement;</a> </p> <div class="translation"> 机译：X射线显微镜图;部分体积效应;分割;体积数据分析;图像处理;3-D测量; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704025591942.html">Accurate Measurement of Small Features in X-Ray CT Data Volumes, Demonstrated Using Gold Grains</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ketcham R. 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href="/journal-cn-1995/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 农业发展与金融 </a> </span> <span> . 2008</span><span>,第001期</span> </span> </div> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/academic-journal-cn_international-medicine-health-guidance-news_thesis/0201232414917.html">CT机的X射线球管的合理使用--如何提高CT球管的使用寿命</a> <b>[J]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=杨华欢&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 杨华欢</a> <span> <a href="/journal-cn-11055/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 国际医药卫生导报 </a> </span> <span> . 2003</span><span>,第014期</span> </span> </div> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-conference-cn_meeting-15265_thesis/020221363275.html">一种精确测量加速器能量的新方法——KD曲线X射线能量测量法</a> <b>[C]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=朱国平&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 朱国平</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=邓艳丽&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,邓艳丽</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=曹艳锋&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,曹艳锋</a> <span> <a href="/conference-cn-15265/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 全国第七届核监测学术研讨会 </a> <span> <span> . 2009</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020314121555.html">金属板材的最大腐蚀深度X射线斜透射测量及其使用寿命预估的统计模型</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=代方&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 代方</a> <span> . 2003</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/06120103739899.html">测量用X射线CT装置和使用该装置的CT重建方法</a> <b>[P]</b> . <span> 中国专利： CN111141767A </span> <span> . 2020-05-12</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/061204568178.html">X射线CT数据处理装置以及搭载其的X射线CT装置</a> <b>[P]</b> . <span> 中国专利： CN108135560B </span> <span> . 2021.07.30</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130411257492.html">A method for the three-dimensional image reconstruction from to a three-dimensional measuring volume in relation to volume points measurement data of an x-ray device as well as associated x-ray device</a> <b>[P]</b> . <span> 外国专利：  DE102007039919B4 </span> <span> . 2016-10-13</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：一种用于相对于X射线设备以及相关的X射线设备的体积点测量数据从三维测量体积到三维测量体积的三维图像重建的方法 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130443525695.html">Method for measuring the volume of a solid body, especially a log, in which a measurement station is used to measure successive log sections that are then combined with length measurements to provide an accurate volume value</a> <b>[P]</b> . <span> 外国专利：  FR2835604A1 </span> <span> . 2003-08-08</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：用于测量固体尤其是原木体积的方法，其中使用测量站测量连续的原木截面，然后将其与长度测量值相结合以提供准确的体积值 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130419500216.html">METHOD FOR RESTORING A SECTION IMAGE FROM AN X-RAY PENETRATION IMAGE OF A MULTI-WAVELENGTH AND A METHOD THEREOF CAPABLE OF RESTORING AN ACCURATE IMAGE BY USING MEASUREMENT DATA ABOUT ALL WAVELENGTHS OF X-RAYS FOR IMAGE RESTORATION</a> <b>[P]</b> . <span> 外国专利：  KR20130011823A </span> <span> . 2013-01-30</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：从多波长的x射线穿透图像中恢复截面图像的方法以及通过使用关于所有x射线波长的图像恢复的测量数据而能够恢复精确图像的方法 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" style="bottom: 19px;z-index: 999;" onclick="ywcd('0704025591157','4',7,2,1,'',this,24)" class="delivery" prompt="010401" title="通过人工服务将文献原文发送至邮箱" >获取原文</div> <div class="journalsub-pop-up" style="display: none"> <div class="journal-sub"> <h2>期刊订阅</h2> <img src="https://cdn.zhangqiaokeyan.com/img/loginclose.png" alt="" 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