2013 IEEE International Conference on Imaging Systems and Techniques (IST)最新文献_第8页

Gas-water two-phase flow pattern characterization with Multivariate Multiscale Entropy 多元多尺度熵表征气水两相流型

2013 IEEE International Conference on Imaging Systems and Techniques (IST) Pub Date : 2013-10-01 DOI: 10.1109/IST.2013.6729659

C. Tan, Jia Zhao, F. Dong

引用次数: 3

Approach to metric and discrimination of blur based on its invariant features 基于模糊不变性特征的模糊度量与判别方法

2013 IEEE International Conference on Imaging Systems and Techniques (IST) Pub Date : 2013-10-01 DOI: 10.1109/IST.2013.6729705

S. Yousaf, S. Qin

{"title":"Approach to metric and discrimination of blur based on its invariant features","authors":"S. Yousaf, S. Qin","doi":"10.1109/IST.2013.6729705","DOIUrl":"https://doi.org/10.1109/IST.2013.6729705","url":null,"abstract":"Blur metrics have been used in broad range of applications to quantify the amount of blur especially in images. The spatially varying blur due to defocus or camera shake is hard to estimate. It is observed that the existing blur metrics does not perform well for images having very few or many features. In this work, we present contrast based blur invariant features named as CBIF, which utilizes useful information available in different contrast levels. We further, used CBIF along with local standard deviation to formulate a no reference objective blur metric which shows better results compared with other existing blur metrics. Additionally, the proposed blur metric can be modified for perceptual quality assessment by implementing the scheme which takes advantage of a better correlation with human blur perception. Also, the blur metric can be modified to provide blur assessment in the presence of gaussian noise. The proposed metric is monotonic as well as accurate even for severely blurred images. The comparison of results with subjective scores of CSIQ and LIVE image databases also validated the superiority of our proposed metric over existing metrics. The applicability of our blur metric is also demonstrated for the assessment of JPEG distortions. The property of CBIF for being more sensitive to blur effected regions is also used for obtaining blur likelihood map which is further used in blur segmentation.","PeriodicalId":448698,"journal":{"name":"2013 IEEE International Conference on Imaging Systems and Techniques (IST)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127602599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Lung cancer pathology discrimination techniques using time series analysis 肺癌病理鉴别技术的时间序列分析

2013 IEEE International Conference on Imaging Systems and Techniques (IST) Pub Date : 2013-10-01 DOI: 10.1109/IST.2013.6729667

T. Farrahi, G. Giakos, T. Quang, S. Shrestha, A. Deshpande, C. Narayan, Dimitrios Alexios Karras

引用次数: 1

A 3D interpolation method in repairing hand vascular tree for vein recognition 一种用于手部血管树修复的三维插值方法

2013 IEEE International Conference on Imaging Systems and Techniques (IST) Pub Date : 2013-10-01 DOI: 10.1109/IST.2013.6729701

Xia Zhu, Xiaoming Hu, Dayuan Yan, Ya Zhou, Ruobing Huang, M. Liu

引用次数: 3

Color image watermarking via Quaternion Radial Tchebichef Moments 基于四元数径向切切夫矩的彩色图像水印

2013 IEEE International Conference on Imaging Systems and Techniques (IST) Pub Date : 2013-10-01 DOI: 10.1109/IST.2013.6729671

E. Tsougenis, G. Papakostas, D. Koulouriotis, E. Karakasis, Dimitrios Alexios Karras

引用次数: 15

Land classification from LiDAR full-waveforms based on multi-class support vector machines 基于多类支持向量机的激光雷达全波形土地分类

2013 IEEE International Conference on Imaging Systems and Techniques (IST) Pub Date : 2013-10-01 DOI: 10.1109/IST.2013.6729651

Xiaolu Li, Lian Ma, Lijun Xu

{"title":"Land classification from LiDAR full-waveforms based on multi-class support vector machines","authors":"Xiaolu Li, Lian Ma, Lijun Xu","doi":"10.1109/IST.2013.6729651","DOIUrl":"https://doi.org/10.1109/IST.2013.6729651","url":null,"abstract":"In this study, a multi-class support vector machines (SVM) based land classification method is presented to predict the land types of Beijing area. The returned full-waveforms were collected from the Ice, Cloud and land Elevation Satellite (ICESat) mission and the Full Width at Half Maximum (FWHM) of the full-waveforms were used to be the attributes of test data for generating the SVM prediction model. FWHM were obtained from waveforms filtered by Empirical Mode Decomposition (EMD). The SVM prediction model with high cross validation accuracy was selected to predict the land types of Beijing area. GLAS full-waveforms, which were used to predict and validate the land classification, were acquired when ICESat was passing over Beijing urban and rural areas from 1st Jan 2003 to 31st Dec 2005. Besides of terrace and building, the main land types of Beijing area are plain and stone Mountain that lacks of trees. Thus the received waveforms of ICESat/GLAS were divided into five kinds, `invalid', `plain', `terrace', `building' and `mountain' waveforms. Over this test site, the algorithm achieved an overall classification accuracy of 91.5%. This method can be developed to be an on-line automation algorithm to classify the land type.","PeriodicalId":448698,"journal":{"name":"2013 IEEE International Conference on Imaging Systems and Techniques (IST)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130332062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

On content based MRSI retrieval integrating fuzzy descriptors in the wavelet domain 基于内容的核磁共振成像小波域模糊描述符集成检索

2013 IEEE International Conference on Imaging Systems and Techniques (IST) Pub Date : 2013-10-01 DOI: 10.1109/IST.2013.6729709

Dimitrios Alexios Karras

{"title":"On content based MRSI retrieval integrating fuzzy descriptors in the wavelet domain","authors":"Dimitrios Alexios Karras","doi":"10.1109/IST.2013.6729709","DOIUrl":"https://doi.org/10.1109/IST.2013.6729709","url":null,"abstract":"Magnetic resonance spectroscopic imaging (MRSI) integrates spectroscopic and imaging methods to acquire spatially localized spectra associated with a specific patient. MRSI is a relatively new imaging entity for clinical applications and gathering relevant data is an expensive task. Therefore, only few small databases might exist for clinical use. However, the rapid advances made in the field of NMR scanning technologies as applied to clinical diagnosis of oncological diseases, may soon lead to the creation of large databases of such images in medical centers and hospitals. Therefore, the need for mining MRSI images will soon emerge. This paper proposes the novel application of a recent method for content based MRSI image retrieval based on investigating fuzzy descriptors in the image and the wavelet domain as an extension of a recent fuzzy descriptor. The description of MRSI images relies on a new descriptor which includes global image features as well as transform domain features, capturing both brightness and texture characteristics at the same time, based on a normalized measure of the MRS spectrum per each image voxel. Image information is extracted using a set of fuzzy approaches applied to image and transform domain. Experiments illustrate the feasibility of the proposed approach using synthetic images derived from benchmark MRS spectra.","PeriodicalId":448698,"journal":{"name":"2013 IEEE International Conference on Imaging Systems and Techniques (IST)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131034265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Theoretical analysis of the dielectric characteristics of plasma flame and imaging plasma flame using Electrical Capacitance Tomography 等离子体火焰介电特性的理论分析及用电容层析成像等离子体火焰

2013 IEEE International Conference on Imaging Systems and Techniques (IST) Pub Date : 2013-10-01 DOI: 10.1109/IST.2013.6729727

Jiang Yunhao, Chen Qi

引用次数: 4

Image position analysis of motion errors for missile-borne SAR based on diving model 基于潜水模型的弹载SAR运动误差图像定位分析

2013 IEEE International Conference on Imaging Systems and Techniques (IST) Pub Date : 2013-10-01 DOI: 10.1109/IST.2013.6729692

Sun Bing, Wang Ye, Chen Jie, Wang Yan, Liang Bing

{"title":"Image position analysis of motion errors for missile-borne SAR based on diving model","authors":"Sun Bing, Wang Ye, Chen Jie, Wang Yan, Liang Bing","doi":"10.1109/IST.2013.6729692","DOIUrl":"https://doi.org/10.1109/IST.2013.6729692","url":null,"abstract":"This paper concentrates on the synthetic aperture radar(SAR) image position analysis of the missile-borne SAR platform's motion errors based on the general missile-borne SAR diving model. The general missile-borne diving model expanded from the classic side-look image model includes three-dimensional position and three-dimensional velocity and can be used describe the motion of the missile-borne SAR flexibly. Based on the general model and the Doppler position equations of SAR slant image to ground image, the two-dimensional position errors expressions of the corrected image are derived. The expressions are the functions of the platform's three-dimensional position and three-dimensional velocity. Then the SAR image's position errors varying with the above six factors are simulated, also the whole-chain simulation including echo simulation, imaging and position measuring validated the correction of the image position expressions. The presented position expressions of the platform's motion errors can serve the platform's parameters choosing for the missile-borne system design, and it is of important value for engineering reference.","PeriodicalId":448698,"journal":{"name":"2013 IEEE International Conference on Imaging Systems and Techniques (IST)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132838974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Multi-frequency least squares demodulation method in electromagnetic rail inspection 电磁轨道检测中的多频最小二乘解调方法

2013 IEEE International Conference on Imaging Systems and Techniques (IST) Pub Date : 2013-10-01 DOI: 10.1109/IST.2013.6729722

R. Zheng, Ze Liu, Yingfei Lu, Lixiong Zhu, Xiufang Sun

引用次数: 3