发布求助
文献互助 智能选刊 最新文献

Image Analysis & Stereology最新文献

筛选
英文 中文
VOLUME TENSOR ESTIMATION USING A VIRTUAL LINE GRID: STUDY OF A DEVELOPING PHEASANT BRAIN 使用虚拟线网格的体积张量估计:发展中的野鸡大脑的研究
IF 0.9 4区 计算机科学
Image Analysis & Stereology Pub Date : 2019-12-13 DOI: 10.5566/ias.1701
J. Janáček, D. Jirák
{"title":"VOLUME TENSOR ESTIMATION USING A VIRTUAL LINE GRID: STUDY OF A DEVELOPING PHEASANT BRAIN","authors":"J. Janáček, D. Jirák","doi":"10.5566/ias.1701","DOIUrl":"https://doi.org/10.5566/ias.1701","url":null,"abstract":"The volume tensor provides a robust estimate of the shape and orientation of an object in space. In this paper, we introduce Fakir method for estimating the tensor of an object in 3D data set based on the intersections of objects boundary with virtual lines. We calculate the precision of shape estimates by predicting the variance of estimators of integrals based on systematic sampling. To demonstrate the ability of the Fakir method, we measure changes in shape and orientation of compartments in the pheasant brain during development.","PeriodicalId":49062,"journal":{"name":"Image Analysis & Stereology","volume":"1 1","pages":"255-260"},"PeriodicalIF":0.9,"publicationDate":"2019-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88856402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Geometrical Properties of Skeletal Structures of Radiolarian Genus Didymocyrtis 放射虫属Didymocyrtis骨骼结构的几何特性
IF 0.9 4区 计算机科学
Image Analysis & Stereology Pub Date : 2019-12-13 DOI: 10.5566/ias.2089
T. Yoshino, A. Matsuoka, N. Kishimoto
{"title":"Geometrical Properties of Skeletal Structures of Radiolarian Genus Didymocyrtis","authors":"T. Yoshino, A. Matsuoka, N. Kishimoto","doi":"10.5566/ias.2089","DOIUrl":"https://doi.org/10.5566/ias.2089","url":null,"abstract":"This paper discusses the geometrical properties of a radiolarian skeletal structure, namely, that of genus Didymocyrtis . We characterized the evolution of skeletal structures and analyzed the structures using geometry. We defined two ratios in order to quantify the geometrical properties of Didymocyrtis and verified that the two ratios changed with their phylogenic evolution. We also used the 3D skeletal data of a specimen of species D. tetrathalamus , which were obtained through micro X-ray CT. The cortical shell obtained in the 3D data was projected onto a spherical surface, and we determined the centers of the pores. Our analysis revealed that the number of pores is approximately 200 and their distribution is not regular. We also determined that the column-like parts of the skeleton, which connect the inner and upper parts of the specimen, do not lie on a plane and their intervals are not equal.","PeriodicalId":49062,"journal":{"name":"Image Analysis & Stereology","volume":"132 1","pages":"237-244"},"PeriodicalIF":0.9,"publicationDate":"2019-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73953437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Resolution of the Wicksell's equation by Minimum Distance Estimation 用最小距离估计求解Wicksell方程
IF 0.9 4区 计算机科学
Image Analysis & Stereology Pub Date : 2019-12-13 DOI: 10.5566/ias.2133
D. Depriester, R. Kubler
{"title":"Resolution of the Wicksell's equation by Minimum Distance Estimation","authors":"D. Depriester, R. Kubler","doi":"10.5566/ias.2133","DOIUrl":"https://doi.org/10.5566/ias.2133","url":null,"abstract":"The estimation of the grain size in granular materials is usually performed by 2D observations. Unfolding the grain size distribution from apparent 2D sizes is commonly referred as the corpuscle problem. For spherical particles, the distribution of the apparent size can be related to that of the actual size thanks to the Wicksell’s equation. The Saltikov method, which is based on Wicksell’s equation, is the most widely used method for resolving corpuscle problems. This method is recursive and works on the finite histogram of the grain size. In this paper, we propose an algorithm based on a minimizing procedure to numerically solve the Wicksell’s equation, assuming a parametric model for the distribution (e.g. lognormal distribution). This algorithm is applied on real material and the results are compared to those found using Saltikov or Saltikov-based stereology techniques. A criterion is proposed for choosing the number of bins in the Saltikov method. The accuracy of the proposed algorithm, depending on the sample size, is studied.","PeriodicalId":49062,"journal":{"name":"Image Analysis & Stereology","volume":"229 1","pages":"213-226"},"PeriodicalIF":0.9,"publicationDate":"2019-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82809881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
VARIANCE OF THE ISOTROPIC UNIFORM SYSTEMATIC SAMPLING 各向同性均匀系统抽样的方差
IF 0.9 4区 计算机科学
Image Analysis & Stereology Pub Date : 2019-12-13 DOI: 10.5566/ias.2218
J. Janáček, D. Jirák
{"title":"VARIANCE OF THE ISOTROPIC UNIFORM SYSTEMATIC SAMPLING","authors":"J. Janáček, D. Jirák","doi":"10.5566/ias.2218","DOIUrl":"https://doi.org/10.5566/ias.2218","url":null,"abstract":"The integral of a smooth function with bounded support over a set with finite perimeter in Euclidean space ℝ d is estimated using a periodic grid in an isotropic uniform random position. Extension term in the estimator variance is proportional to the integral of the squared modulus of the function over the object boundary and to the grid scaling factor raised to the power of d +1. Our result generalizes the Kendall-Hlawka-Matheron formula for the variance of the isotropic uniform systematic estimator of volume.","PeriodicalId":49062,"journal":{"name":"Image Analysis & Stereology","volume":"1 1","pages":"261-267"},"PeriodicalIF":0.9,"publicationDate":"2019-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89361378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Endpoint Detection of Partially Overlapping Straight Fibers using High Positive Gaussian Curvature in 3D images 基于高正高斯曲率的三维图像部分重叠直纤维端点检测
IF 0.9 4区 计算机科学
Image Analysis & Stereology Pub Date : 2019-12-13 DOI: 10.5566/ias.2197
Markus Kronenberger, K. Schladitz, O. Wirjadi, Christopher Weber, B. Hamann, H. Hagen
{"title":"Endpoint Detection of Partially Overlapping Straight Fibers using High Positive Gaussian Curvature in 3D images","authors":"Markus Kronenberger, K. Schladitz, O. Wirjadi, Christopher Weber, B. Hamann, H. Hagen","doi":"10.5566/ias.2197","DOIUrl":"https://doi.org/10.5566/ias.2197","url":null,"abstract":"This paper introduces a method for detecting endpoints of partially overlapping straight fibers in three-dimensional voxel image data. The novel approach directly determines fiber endpoints without the need for more expansive single-fiber segmentation. In the context of fiber-reinforced polymers, endpoint information is of practical significance as it can indicate potential damage in endless fiber systems, or can serve as input for estimating statistical fiber length distribution. We tackle this challenge by exploiting Gaussian curvature of the surface of the fibers. Fiber endpoints have high positive curvature, allowing one to distinguish them from the rest of a structure. Accuracy data of the proposed method are presented for various data sets. For simulated fiber systems with fiber volume fractions of less than 20 %, true positive rates above 94 % and false positive rates below 5 % are observed. Two well-resolved real data sets show a reduction of the first rate to 90.3 % and an increase of the second rate to 13.1 %.","PeriodicalId":49062,"journal":{"name":"Image Analysis & Stereology","volume":"346 1","pages":"245-253"},"PeriodicalIF":0.9,"publicationDate":"2019-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75158354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Extended algorithm to construct a quadtree from Freeman chain code in four directions 从Freeman链码在四个方向上构造四叉树的扩展算法
IF 0.9 4区 计算机科学
Image Analysis & Stereology Pub Date : 2019-12-13 DOI: 10.5566/ias.2095
Andrej Nerat, D. Strnad, Eva Zupancic, B. Žalik
{"title":"Extended algorithm to construct a quadtree from Freeman chain code in four directions","authors":"Andrej Nerat, D. Strnad, Eva Zupancic, B. Žalik","doi":"10.5566/ias.2095","DOIUrl":"https://doi.org/10.5566/ias.2095","url":null,"abstract":"This paper introduces improvements to the algorithm that was proposed in 2001 by Chen and Chen. The algorithm constructs a quadtree directly from Freeman chain code in four directions. We have improved the algorithm in two ways: Firstly, a time efficient solution using the space filling Z-order curve is proposed for a self-intersection case that was not considered by Chen and Chen. Secondly, the algorithm is expanded to handle geometric objects containing holes. The computational efficiency of the extended algorithm was confirmed by the experiments.","PeriodicalId":49062,"journal":{"name":"Image Analysis & Stereology","volume":"47 1","pages":"227-235"},"PeriodicalIF":0.9,"publicationDate":"2019-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73815393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
FAMOUS “PRE-STEREOLOGICAL” TOOLS: SURVEY OF APPLICATIONS ON CEMENT-BASED MATERIALS DURING PAST HALF OF A CENTURY 著名的“前立体学”工具:半个世纪以来水泥基材料的应用综述
IF 0.9 4区 计算机科学
Image Analysis & Stereology Pub Date : 2019-12-08 DOI: 10.5566/ias.2207
P. Stroeven
{"title":"FAMOUS “PRE-STEREOLOGICAL” TOOLS: SURVEY OF APPLICATIONS ON CEMENT-BASED MATERIALS DURING PAST HALF OF A CENTURY","authors":"P. Stroeven","doi":"10.5566/ias.2207","DOIUrl":"https://doi.org/10.5566/ias.2207","url":null,"abstract":"Old theorems by Cavalieri, Buffon and Cauchy that have been mentioned earlier for their relevance to materials engineering are discussed herein, whereby it is indicated how we applied them on cementbased materials. Specifically, relevant problems treated by the present author are surveyed. Particularly in the presently explored field of porosimetry and permeability estimation of virtual representations of the cement-based materials, it is demonstrated how the stereological framework - in which the theorems are embedded to day - develops with respect to the discussed problems.","PeriodicalId":49062,"journal":{"name":"Image Analysis & Stereology","volume":"23 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76859548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
AUTOMATED MEASUREMENT OF FOOT DEFORMITIES: FLATFOOT, HIGH ARCH, CALCANEAL FRACTURE 自动测量足部畸形:平足、高足弓、跟骨骨折
IF 0.9 4区 计算机科学
Image Analysis & Stereology Pub Date : 2019-07-18 DOI: 10.5566/IAS.1980
Maciej Skwirczynski, T. Gaciarz, M. Skomorowski, W. Wojciechowski
{"title":"AUTOMATED MEASUREMENT OF FOOT DEFORMITIES: FLATFOOT, HIGH ARCH, CALCANEAL FRACTURE","authors":"Maciej Skwirczynski, T. Gaciarz, M. Skomorowski, W. Wojciechowski","doi":"10.5566/IAS.1980","DOIUrl":"https://doi.org/10.5566/IAS.1980","url":null,"abstract":"Radiographic measurements of foot deformities are used to determine, among other things, such conditions as flatfoot, high arch, or calcaneal fracture. Those measurements are achieved by estimating four angles. Manual assessment of those angles is time-consuming not to mention inevitable errors of such approximation. To the best of the authors knowledge, currently there is no research focusing on finding those four angles. In this paper an algorithm for automatic assessment of those angles, based on extremely randomized trees, is being proposed. Moreover this diagnostic assisting system was intended to be as generic as possible and could be applied, to some degree, to other similar problems. To demonstrate usefulness of this method, correlations of automated measurements with manual ones against correlations of manual measurements with manual ones are being compared. The significance level for manual-manual measurements comparison is less than 0.001 in case of all four angles. The significance level for automated-manual measurements comparison is also less than 0.001 in all cases. The results show that the search for the aforementioned angles can be automated. Even with the use of a generic algorithm a high degree of precision can be achieved, allowing for a more efficient diagnosis.","PeriodicalId":49062,"journal":{"name":"Image Analysis & Stereology","volume":"17 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81678710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
ARCHETYPAL ANALYSIS: AN ALTERNATIVE TO CLUSTERING FOR UNSUPERVISED TEXTURE SEGMENTATION 原型分析:一种替代聚类的无监督纹理分割
IF 0.9 4区 计算机科学
Image Analysis & Stereology Pub Date : 2019-07-18 DOI: 10.5566/IAS.2052
Ismael Cabero, I. Epifanio
{"title":"ARCHETYPAL ANALYSIS: AN ALTERNATIVE TO CLUSTERING FOR UNSUPERVISED TEXTURE SEGMENTATION","authors":"Ismael Cabero, I. Epifanio","doi":"10.5566/IAS.2052","DOIUrl":"https://doi.org/10.5566/IAS.2052","url":null,"abstract":"Texture segmentation is one of the main tasks in image applications, specifically in remote sensing, where the objective is to segment high-resolution images of natural landscapes into different cover types. Often the focus is on the selection of discriminant textural features, and although these are really fundamental, there is another part of the process that is also influential, partitioning different homogeneous textures into groups. A methodology based on archetype analysis (AA) of the local textural measurements is proposed. AA seeks the purest textures in the image and it can find the borders between pure textures, as those regions composed of mixtures of several archetypes. The proposed procedure has been tested on a remote sensing image application with local granulometries, providing promising results.","PeriodicalId":49062,"journal":{"name":"Image Analysis & Stereology","volume":"146 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74701220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
SIMILARITY BETWEEN RANDOM SETS CONSISTING OF MANY COMPONENTS 由许多成分组成的随机集之间的相似性
IF 0.9 4区 计算机科学
Image Analysis & Stereology Pub Date : 2019-07-18 DOI: 10.5566/IAS.2017
Vesna Gotovac
{"title":"SIMILARITY BETWEEN RANDOM SETS CONSISTING OF MANY COMPONENTS","authors":"Vesna Gotovac","doi":"10.5566/IAS.2017","DOIUrl":"https://doi.org/10.5566/IAS.2017","url":null,"abstract":"Random sets play an essential role in modelling several phenomena in biology, medicine and material science. However, sometimes it is hard to describe them using a specific model. Therefore it can also be difficult to classify them or to compare their realisations. This contribution proposes a similarity measure between two random sets whose realisations consist of many components based on just one realisation of each of them. The similarity measure is obtained in a non-parametric way taking into account the shapes and the positions of the components. The procedure is justified by a simulation study and consequently applied to real biomedical data of histological images of mammary tissue.","PeriodicalId":49062,"journal":{"name":"Image Analysis & Stereology","volume":"44 1","pages":""},"PeriodicalIF":0.9,"publicationDate":"2019-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73692246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信