{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"以岩石的<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>为研究对象,充分利用<span style=\"color:red\">CT</span>扫描<span style=\"color:red\">图像</span>资料中的信息,提出了一种<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>分析方法.利用数字<span style=\"color:red\">图像</span>增强技术实现<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>增强,并根据数字<span style=\"color:red\">图像</span>进行了对比度调整,然后根据数字<span style=\"color:red\">图像</span>分割技术提取岩石中的空隙和裂隙.在此基础上,利用Marching Cube算法进行连续<span style=\"color:red\">CT</span>断层<span style=\"color:red\">图像</span>的三维重建,实现了岩石加载试验中不同阶段的裂纹分布的可视化.此方法不仅可以直观地观察到岩石的损伤演变情况,而且准确地描述了岩石材料内部介质的空间分布,同时结合损伤理论定义了以损伤体积作为损伤因子的损伤变量,得到损伤变量与偏应力间的关系曲线,合理地反映出岩石在损伤偏应力作用下的损伤演化特性.","authors":[{"authorName":"张飞","id":"33302b2a-ad78-4f2a-945a-c267522ea734","originalAuthorName":"张飞"},{"authorName":"周海东","id":"14274e44-0a57-46b1-92b3-c68a6581c26a","originalAuthorName":"周海东"},{"authorName":"姜军周","id":"ae5e5de9-739c-44f0-9642-2554e3f84a2a","originalAuthorName":"姜军周"}],"doi":"10.3969/j.issn.1001-1277.2010.07.007","fpage":"25","id":"71a2637e-eecc-4f63-bb60-f1b273d3dd25","issue":"7","journal":{"abbrevTitle":"HJ","coverImgSrc":"journal/img/cover/HJ.jpg","id":"44","issnPpub":"1001-1277","publisherId":"HJ","title":"黄金"},"keywords":[{"id":"d81c5ccd-e784-453f-9b00-de287e58adb7","keyword":"<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>","originalKeyword":"CT图像"},{"id":"0d94c665-5a64-4787-b3f3-87cca44f4000","keyword":"数字<span style=\"color:red\">图像</span>处理","originalKeyword":"数字图像处理"},{"id":"0057f960-8e4b-4dd7-a117-a16a5622a9f6","keyword":"Marching Cube算法","originalKeyword":"Marching Cube算法"},{"id":"41770591-58c7-46cf-b11d-4729b66fb264","keyword":"三维重建","originalKeyword":"三维重建"},{"id":"d7fbea0a-93a4-4f30-9028-ccacd58042f2","keyword":"裂纹","originalKeyword":"裂纹"},{"id":"1c3966ae-8c4e-4e20-9e7d-0101e9466c32","keyword":"岩石损伤","originalKeyword":"岩石损伤"}],"language":"zh","publisherId":"huangj201007007","title":"岩石<span style=\"color:red\">CT</span>断层序列<span style=\"color:red\">图像</span>裂纹三维重建及其损伤特性的研究","volume":"31","year":"2010"},{"abstractinfo":"医学超声成像具有成本低、实时成像等优势,基于超声的多模态配准在临床诊断、病情监测、外科手术等应用上具有较大的意义.三维医学<span style=\"color:red\">图像</span>能够清晰地显示病变大小、形态,提供相对完整的人体组织的三维结构信息.本文采用基于B样条自由形变模型的非刚性配准方法对三维超声<span style=\"color:red\">图像</span>和计算机断层扫描<span style=\"color:red\">图像</span>(Computed Tomography,<span style=\"color:red\">CT</span>)进行配准,利用薄板样条能量约束项解决三维<span style=\"color:red\">图像</span>配准过程中的<span style=\"color:red\">图像</span>交叉与重叠问题.此外,使用仿体数据以及临床数据验证算法性能,通过感兴趣区域的相对重叠率,互信息值和程序运行时间这三个指标对算法精度和速度进行评价.其中Demons方法平均耗时1896 s,本文改进算法平均耗时195 s,运行效率提高8.7倍;算法改进前后的感兴趣区域重叠率分别是89.58％和91.35％,精度提高2.0％.实验结果表明此算法能够对超声和<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>进行配准并获得较好的结果.","authors":[{"authorName":"冯兆美","id":"5c605eeb-f140-497c-acb0-89f547b817a6","originalAuthorName":"冯兆美"},{"authorName":"党军","id":"9c808431-5519-46eb-9cee-5f10a06f8665","originalAuthorName":"党军"},{"authorName":"崔崤蛲","id":"115db419-ddbf-422f-aa68-be0a3758a79c","originalAuthorName":"崔崤蛲"},{"authorName":"焦阳","id":"fb0104de-509d-47f6-b692-f71d883db7ca","originalAuthorName":"焦阳"}],"doi":"10.7517/j.issn.1674-0475.2014.02.200","fpage":"200","id":"85cd1423-38e7-4a08-af31-c887278eaaf9","issue":"2","journal":{"abbrevTitle":"YXKXYGHX","coverImgSrc":"journal/img/cover/YXKXYGHX.jpg","id":"74","issnPpub":"1674-0475","publisherId":"YXKXYGHX","title":"影像科学与光化学   "},"keywords":[{"id":"f8cca73b-d42e-4eda-be0c-0b86c299ecee","keyword":"非刚性<span style=\"color:red\">图像</span>配准","originalKeyword":"非刚性图像配准"},{"id":"f66bea72-afe0-40de-b046-8cd02151c80f","keyword":"互信息","originalKeyword":"互信息"},{"id":"730b0380-16ac-4bd5-b8b6-50e49191904e","keyword":"自由形变模型","originalKeyword":"自由形变模型"},{"id":"212acdf2-62ae-4b50-89b5-6ba446fe31de","keyword":"超声<span style=\"color:red\">图像</span>","originalKeyword":"超声图像"},{"id":"7de850bd-de2f-4ad5-bbed-a69d82270159","keyword":"<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>","originalKeyword":"CT图像"}],"language":"zh","publisherId":"ggkxyghx201402009","title":"基于B样条自由形变三维医学<span style=\"color:red\">图像</span>非刚性配准研究","volume":"32","year":"2014"},{"abstractinfo":"针对深部肿瘤重离子治疗临床试验的需求,首先在水介质中进行生物有效剂量的优化计算,然后根据<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>中像素<span style=\"color:red\">CT</span>值与水等效长度转换系数之间的关系,结合水中的深度剂量分布曲线对每个像素进行积分得到<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>上的生物有效剂量分布.同时介绍了基于被动式束流配送系统适形照射时的剂量确定方式,并提出二维适形放疗也应使用分层照射方式以适应治疗时的不同要求.这些方法适合目前及今后在IMP进行的重离子治癌临床试验研究中治疗计划系统的需要.","authors":[{"authorName":"刘新国","id":"b8c9fcf5-e347-417f-823e-2f93f97b1c91","originalAuthorName":"刘新国"},{"authorName":"李强","id":"533ddfe8-a8f7-45f0-9376-58cace0f61b6","originalAuthorName":"李强"},{"authorName":"戴中颖","id":"3e9fe6a6-42cf-4f5a-b768-f032212e3997","originalAuthorName":"戴中颖"}],"doi":"","fpage":"69","id":"8e4bc7e0-3226-4cff-a512-71406aed3fe6","issue":"1","journal":{"abbrevTitle":"YZHWLPL","coverImgSrc":"journal/img/cover/YZHWLPL.jpg","id":"78","issnPpub":"1007-4627","publisherId":"YZHWLPL","title":"原子核物理评论   "},"keywords":[{"id":"0857c65a-5332-464b-a576-f93f20d7b3ef","keyword":"重离子治癌","originalKeyword":"重离子治癌"},{"id":"74428ff4-af0d-4bde-ab03-1567bf965d56","keyword":"剂量优化","originalKeyword":"剂量优化"},{"id":"fa3be132-2294-458c-bfa5-043deb7c2b10","keyword":"<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>","originalKeyword":"CT图像"},{"id":"fca9dc7e-3b0e-4475-8872-2b2bfc890366","keyword":"适形照射","originalKeyword":"适形照射"}],"language":"zh","publisherId":"yzhwlpl200901015","title":"IMP重离子治癌中的剂量计算方法","volume":"26","year":"2009"},{"abstractinfo":"叙述了有限角<span style=\"color:red\">CT</span>少数投影重建<span style=\"color:red\">图像</span>技术研究所取得的进展:正交全息光路、干涉条纹处理系统、修改的联合代数重建技术、频谱分析<span style=\"color:red\">图像</span>重建技术和神经网络重建技术.","authors":[{"authorName":"是度芳","id":"9eaba050-ee2d-455c-bc42-67474adefc8e","originalAuthorName":"是度芳"}],"doi":"10.3969/j.issn.1007-5461.2004.02.006","fpage":"168","id":"223498d5-8cc6-4f95-b410-88586051dd98","issue":"2","journal":{"abbrevTitle":"LZDZXB","coverImgSrc":"journal/img/cover/LZDZXB.jpg","id":"53","issnPpub":"1007-5461","publisherId":"LZDZXB","title":"量子电子学报   "},"keywords":[{"id":"661ef1e6-7a45-4487-909d-7222026b55ee","keyword":"<span style=\"color:red\">图像</span>处理","originalKeyword":"图像处理"},{"id":"7a31fb6b-7826-4a6a-b557-fdf751b8e779","keyword":"少数投影重建<span style=\"color:red\">图像</span>","originalKeyword":"少数投影重建图像"},{"id":"c6325010-649a-4783-8f80-24f8ef50fa01","keyword":"修改的联合代数重建技术","originalKeyword":"修改的联合代数重建技术"},{"id":"ade2e597-9110-4510-b976-2eb299c93296","keyword":"频谱分析","originalKeyword":"频谱分析"},{"id":"81951c1b-0f60-48a5-bbcf-57faf6464f45","keyword":"神经网络","originalKeyword":"神经网络"}],"language":"zh","publisherId":"lzdzxb200402006","title":"有限角<span style=\"color:red\">CT</span>少数投影重建<span style=\"color:red\">图像</span>技术","volume":"21","year":"2004"},{"abstractinfo":"为满足<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>重建系统的实时处理要求,提出了一种基于FPGA实现<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>重建的加速方法.首先将滤波反投影算法进行并行性分解,然后采用并行流水线设计思想,给出了算法在FPGA上实现的总体结构,并且分别给出滤波、反投影、循环累加等主要功能单元的电路设计,最后在FPGA上实现了12条并行流水线重建系统.实验结果表明,与基于CPU的<span style=\"color:red\">图像</span>重建相比较,基于FPGA的重建系统重建出的<span style=\"color:red\">图像</span>绝对误差小于0.4％,加速比在100倍以上,且重建<span style=\"color:red\">图像</span>的规模越大,加速效果越明显.","authors":[{"authorName":"张晓梦","id":"ef354943-f47e-4866-abf3-d60515360b14","originalAuthorName":"张晓梦"},{"authorName":"张涛","id":"5439e650-5394-4400-882b-00828ab036e3","originalAuthorName":"张涛"}],"doi":"10.3788/YJYXS20142903.0455","fpage":"455","id":"ce22ecf6-5487-4f1c-9534-ca129f868804","issue":"3","journal":{"abbrevTitle":"YJYXS","coverImgSrc":"journal/img/cover/YJYXS.jpg","id":"72","issnPpub":"1007-2780","publisherId":"YJYXS","title":"液晶与显示   "},"keywords":[{"id":"9250481f-4920-4bb9-8268-81812573e225","keyword":"现场可编程门阵列","originalKeyword":"现场可编程门阵列"},{"id":"e7f974a9-d08f-46a7-ba0f-2f310247608f","keyword":"<span style=\"color:red\">图像</span>重建","originalKeyword":"图像重建"},{"id":"11ff62dc-c737-4d64-96f4-1bf7b8dcbef1","keyword":"并行计算","originalKeyword":"并行计算"},{"id":"b81440ec-b8f7-40ed-a4d8-948009eb6e34","keyword":"加速","originalKeyword":"加速"}],"language":"zh","publisherId":"yjyxs201403024","title":"基于FPGA实现<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>重建加速的设计","volume":"29","year":"2014"},{"abstractinfo":"<span style=\"color:red\">CT</span>作为一种无创检查设备在医学领域得到广泛的应用,但是受重建方法的限制,它通常只能对相对静止的器官进行扫描断层成像,而对运动物体或器官的成像能力较差,通常会存在运动伪影.克服运动伪影的根本途径就是减少数据采集的时间,这可以通过减少采集范围来实现.中间函数重建算法是一种基于傅里叶空间的重建算法,该算法可以选择感兴趣的部位(ROI)进行局部<span style=\"color:red\">图像</span>重建,减少数据采集的时间,因此可以使用该算法改善临床上运动物体的扫描成像.","authors":[{"authorName":"霍修坤","id":"abb46072-9139-4f65-b327-f1880ca70e73","originalAuthorName":"霍修坤"}],"doi":"10.3969/j.issn.1007-5461.2006.01.004","fpage":"27","id":"af6966f6-563a-48d1-8858-ef97b4876ee2","issue":"1","journal":{"abbrevTitle":"LZDZXB","coverImgSrc":"journal/img/cover/LZDZXB.jpg","id":"53","issnPpub":"1007-5461","publisherId":"LZDZXB","title":"量子电子学报   "},"keywords":[{"id":"5500e853-3253-4ba6-999d-08cec7bf20f9","keyword":"<span style=\"color:red\">图像</span>处理","originalKeyword":"图像处理"},{"id":"2f89845c-e9e2-43b4-9d7f-7784f207e746","keyword":"中间函数","originalKeyword":"中间函数"},{"id":"a621e6e4-3ace-4e5f-8835-c228ce20f497","keyword":"螺旋<span style=\"color:red\">CT</span>","originalKeyword":"螺旋CT"},{"id":"3778335a-34f8-41e8-8b25-f63235ceade9","keyword":"节段重建","originalKeyword":"节段重建"},{"id":"aeae8f39-2a5a-4207-9cec-60cdab29e560","keyword":"滤波反投影","originalKeyword":"滤波反投影"}],"language":"zh","publisherId":"lzdzxb200601004","title":"一种局部<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>重建算法研究","volume":"23","year":"2006"},{"abstractinfo":"对掺0%和0.2%聚丙烯纤维的C60高性能混凝土进行了模拟火灾高温试验,测试了高温前后混凝土的轴心抗压强度,采用红外热成像检测技术,研究了高温后混凝土的红外热像图谱.建立了高性能混凝土红外热像平均温升与受火温度和轴心抗压强度比的关系;对常温、300 ℃、400 ℃、500 ℃高温后高性能混凝土试件进行了<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>扫描试验,分析纤维对混凝土内部裂纹产生和扩展的影响.","authors":[{"authorName":"陈良豪","id":"9cb49bb6-9d49-4984-9308-725ef75675df","originalAuthorName":"陈良豪"},{"authorName":"杜红秀","id":"4d423180-8e3e-466e-89b5-2e2971049005","originalAuthorName":"杜红秀"}],"doi":"","fpage":"765","id":"7d11da29-0bf7-4aaa-a819-d976706f32f6","issue":"3","journal":{"abbrevTitle":"GSYTB","coverImgSrc":"journal/img/cover/GSYTB.jpg","id":"36","issnPpub":"1001-1625","publisherId":"GSYTB","title":"硅酸盐通报   "},"keywords":[{"id":"e79e6f28-197e-40c9-865a-7b834936e5f8","keyword":"高性能混凝土","originalKeyword":"高性能混凝土"},{"id":"463389d1-8107-4e68-b2ad-60e1f31eef42","keyword":"聚丙烯纤维","originalKeyword":"聚丙烯纤维"},{"id":"f0f3f766-5a42-4cf5-8648-b38102b1f16f","keyword":"高温","originalKeyword":"高温"},{"id":"c66cf4de-3e5e-4c52-bde2-37fd07fdf343","keyword":"红外热像","originalKeyword":"红外热像"},{"id":"c610863f-56da-4e75-818a-069fb2447ec1","keyword":"<span style=\"color:red\">CT</span>扫描","originalKeyword":"CT扫描"}],"language":"zh","publisherId":"gsytb201703002","title":"C60高性能混凝土高温后红外检测及<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>分析","volume":"36","year":"2017"},{"abstractinfo":"针对细编穿刺碳/碳复合材料显微<span style=\"color:red\">CT</span>细观<span style=\"color:red\">图像</span>低对比度的特点,提出采用两步法筛选出纤维束和基体之间分界的灰度阈值,将原<span style=\"color:red\">图像</span>分别转化为纤维束和孔隙的二值图.再结合中值滤波、<span style=\"color:red\">图像</span>膨胀和腐蚀算法,消除噪声影响、光滑<span style=\"color:red\">图像</span>边界线.对处理后的细观<span style=\"color:red\">图像</span>进行统计,发现基体孔隙率满足正态分布,X向和Y向纤维束局部弯曲度分别满足正态分布和Laplace分布.在此基础上建立了包含上述典型细观特征参数的力学模型,预测的拉伸模量和剪切模量满足Laplace分布,泊松比满足正态分布.实验验证了模型预测的拉伸模量分布规律.","authors":[{"authorName":"张海军","id":"3864e2e6-0340-4380-9531-0559dccdfa02","originalAuthorName":"张海军"},{"authorName":"周储伟","id":"f731ea18-d9cb-4f71-acac-5f4d3ccf0abd","originalAuthorName":"周储伟"}],"doi":"10.11868/j.issn.1001-4381.2016.05.011","fpage":"65","id":"32f4910f-a811-47b9-972f-d5d839278c2c","issue":"5","journal":{"abbrevTitle":"CLGC","coverImgSrc":"journal/img/cover/CLGC.jpg","id":"9","issnPpub":"1001-4381","publisherId":"CLGC","title":"材料工程"},"keywords":[{"id":"bb1574e5-43c6-43ad-8a1b-ec798ea805b5","keyword":"碳/碳复合材料","originalKeyword":"碳/碳复合材料"},{"id":"093da8bf-2876-4af0-a190-957cc9c16bb9","keyword":"显微<span style=\"color:red\">CT</span>","originalKeyword":"显微CT"},{"id":"d433b961-7aef-4a15-8c8f-de352ae40c72","keyword":"二值图","originalKeyword":"二值图"},{"id":"7a7c75e9-f2a4-4256-be08-0b8db0ec5023","keyword":"基体孔隙率","originalKeyword":"基体孔隙率"},{"id":"c5c0b01e-a51d-495d-8f54-6c5326d4c460","keyword":"局部弯曲度","originalKeyword":"局部弯曲度"}],"language":"zh","publisherId":"clgc201605011","title":"基于显微<span style=\"color:red\">CT</span><span style=\"color:red\">图像</span>的细编穿刺碳/碳复合材料细观力学模型","volume":"44","year":"2016"},{"abstractinfo":"X射线相位衬度<span style=\"color:red\">CT</span>指的是在通过X射线光源来对物体进行成像过程中使用<span style=\"color:red\">图像</span>的位相衬度来反映物体的密度或者厚度分布,适用于弱吸收物体,还可以减少吸收剂量,放宽成像条件中光源强度的限制和减少对样品(尤其是生物样品)的损伤.介绍了目前用于X射线相位衬度<span style=\"color:red\">CT</span>的三种方法,实验及<span style=\"color:red\">图像</span>重建的过程,并分析了各自的优缺点.","authors":[{"authorName":"章江英","id":"4376036c-5211-4e92-a210-efa72dfe43ff","originalAuthorName":"章江英"},{"authorName":"高洁","id":"0b934449-5463-4b92-add3-4dd51f251809","originalAuthorName":"高洁"},{"authorName":"江帆","id":"c2b8dedc-433c-4343-b27d-ea94b554b969","originalAuthorName":"江帆"},{"authorName":"陈捷","id":"4348f4c0-dc3c-404e-935d-71b2536be268","originalAuthorName":"陈捷"},{"authorName":"陈博","id":"fde9b1fe-a59b-410f-a7e6-2e95a53e48ec","originalAuthorName":"陈博"},{"authorName":"明海","id":"5bc4182c-368f-48cb-adf2-73597c7c82e5","originalAuthorName":"明海"}],"doi":"10.3969/j.issn.1007-5461.2005.04.019","fpage":"579","id":"93824fc7-b4f4-443d-8fe0-0d81b1c5006a","issue":"4","journal":{"abbrevTitle":"LZDZXB","coverImgSrc":"journal/img/cover/LZDZXB.jpg","id":"53","issnPpub":"1007-5461","publisherId":"LZDZXB","title":"量子电子学报   "},"keywords":[{"id":"8d43417e-0761-40bf-acdc-a4c05cbf825e","keyword":"<span style=\"color:red\">图像</span>处理","originalKeyword":"图像处理"},{"id":"81b5c1b5-6b3a-453d-b6f7-6226277dea92","keyword":"X射线","originalKeyword":"X射线"},{"id":"268e4781-2bc6-45bb-a350-155d679f11ed","keyword":"相位衬度","originalKeyword":"相位衬度"},{"id":"7512d809-3da7-4c6f-bff7-85baa71bf85f","keyword":"<span style=\"color:red\">CT</span>","originalKeyword":"CT"}],"language":"zh","publisherId":"lzdzxb200504019","title":"X射线相位衬度<span style=\"color:red\">CT</span>","volume":"22","year":"2005"},{"abstractinfo":"介绍了复合材料<span style=\"color:red\">CT</span>检测、密度及微气孔含量三维测量的原理和方法，并利用在PC机上研制的软件，对断层扫描的<span style=\"color:red\">图像</span>数据进行三维重建、分析和测量，实验表明，<span style=\"color:red\">CT</span>检测对复合材料内部缺陷的检测具有很好的分辨率，三维重建能够很好地显示密度的空间分布情况，<span style=\"color:red\">CT</span>检测是目前最精确、有效的无损评价方法之一。","authors":[{"authorName":"吴东流","id":"fa1ba8a0-179f-41fe-9f0d-9ae3f9ec368c","originalAuthorName":"吴东流"}],"doi":"10.3969/j.issn.1007-2330.2001.01.011","fpage":"42","id":"cdde6c4d-812b-4ac9-924e-cf8c5cc69b0f","issue":"1","journal":{"abbrevTitle":"YHCLGY","coverImgSrc":"journal/img/cover/YHCLGY.jpg","id":"77","issnPpub":"1007-2330","publisherId":"YHCLGY","title":"宇航材料工艺   "},"keywords":[{"id":"9ef847a7-1e0f-483d-b5f9-46b2d0c6e3bc","keyword":"<span style=\"color:red\">CT</span>","originalKeyword":"CT"},{"id":"3de58b92-2e2d-4a45-a76b-def08d4bd56d","keyword":"无损检测","originalKeyword":"无损检测"},{"id":"87c59d5a-c642-4717-a355-81782f3286c0","keyword":"复合材料","originalKeyword":"复合材料"}],"language":"zh","publisherId":"yhclgy200101011","title":"复合材料<span style=\"color:red\">CT</span>检测的原理和应用","volume":"31","year":"2001"}],"totalpage":204,"totalrecord":2035}