2007 5th International Symposium on Image and Signal Processing and Analysis最新文献_第4页

Computational Anatomy Atlas of the Heart 心脏计算解剖图谱

2007 5th International Symposium on Image and Signal Processing and Analysis Pub Date : 2007-11-19 DOI: 10.1109/ISPA.2007.4383715

S. Ordas, E. Oubel, R. Sebastián, Alejandro F Frangi

{"title":"Computational Anatomy Atlas of the Heart","authors":"S. Ordas, E. Oubel, R. Sebastián, Alejandro F Frangi","doi":"10.1109/ISPA.2007.4383715","DOIUrl":"https://doi.org/10.1109/ISPA.2007.4383715","url":null,"abstract":"A computational anatomy atlas of the heart has been built for the main purposes of patient-specific functional analysis and electromechanics simulations. The atlas is composed of an underlying statistical shape model, based on a point distribution model (PDM), which was constructed from a training set comprising 100 asymptomatic and pathologic subjects. A key advantage of the proposed building procedure is the needless of manual delineations. Another one is the use of multi-slice computed tomography (MSCT) images, which have an excellent spatial resolution. Both, inter-subject and temporal variability were captured with the inclusion of all available time frames of each 4-D (3-D + time) image. Embedded in the shape model, a number of functional structures and properties have been incorporated to the atlas, such as myocardial fiber orientation, specialized electrical conduction pathways in the ventricles and atria, a set of anatomical landmarks, and the coronary venous and arterial trees. While numerous potential improvements are planed for the future, the atlas is already workable for FEM-based simulations of ventricular electrophysiology and cardiac functional analysis.","PeriodicalId":112420,"journal":{"name":"2007 5th International Symposium on Image and Signal Processing and Analysis","volume":"276 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115986351","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: 30

Hierarchical Mesh Segmentation Using Waterfall and Dynamics 分层网格分割使用瀑布和动态

2007 5th International Symposium on Image and Signal Processing and Analysis Pub Date : 2007-11-19 DOI: 10.1109/ISPA.2007.4383683

S. Delest, R. Boné, H. Cardot

引用次数: 8

Application of Discrete Wavelet Transform (DWT) in Combustion Failure Detection of IC Engines 离散小波变换在内燃机燃烧故障检测中的应用

2007 5th International Symposium on Image and Signal Processing and Analysis Pub Date : 2007-11-19 DOI: 10.1109/ISPA.2007.4383741

F. A. Shirazi, M. Mahjoob

{"title":"Application of Discrete Wavelet Transform (DWT) in Combustion Failure Detection of IC Engines","authors":"F. A. Shirazi, M. Mahjoob","doi":"10.1109/ISPA.2007.4383741","DOIUrl":"https://doi.org/10.1109/ISPA.2007.4383741","url":null,"abstract":"Fault detection of internal combustion engines has been started to develop more rapidly in recent years. Few works have been published on time-frequency analysis of IC engine vibration signals. These types of analysis are fully adapted to transient nature of IC engine signals and do not possess the drawbacks of traditional methods based on Fourier analysis. In this paper we used the vibration signals taken experimentally from a typical 4-cylinder IC engine. Ignition failures were introduced and their effects were investigated. Since the signals were noisy the time synchronous averaging (TSA) was used to extract the dominant transient behavior of the signals. After TSA, discrete wavelet transform (DWT) was employed to transfer the signal in time domain to the time-frequency domain. DWT holds significant properties which make it suitable for fault detection and diagnosis. The results showed that DWT decomposition in 4th approximation level is appropriate for fault detection. For this level and the higher levels, the trends of the signal variations were studied in different operating conditions of the engine, namely the healthy and faulty ones. The results are promising and reveal the effectiveness of the method. Comparison between our previous works and this new approach shows a simpler interpretation of DWT results over other time-frequency methods such as STFT and CWT. These facts demonstrate the possibility of using DWT for monitoring combustion failure of IC engines in addition to traditional applications such as diagnosis of rotating machineries.","PeriodicalId":112420,"journal":{"name":"2007 5th International Symposium on Image and Signal Processing and Analysis","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114926982","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: 17

Adaptive mesh simplification using distance to focus of attention for multiple points of view 自适应网格简化，使用距离来集中多个视点的注意力

2007 5th International Symposium on Image and Signal Processing and Analysis Pub Date : 2007-11-19 DOI: 10.1109/ISPA.2007.4383724

S. Mata, L. Pastor, A. Rodríguez

引用次数: 2

Feature Extraction for Face Recognition using Recursive Bayesian Linear Discriminant 基于递归贝叶斯线性判别的人脸识别特征提取

2007 5th International Symposium on Image and Signal Processing and Analysis Pub Date : 2007-11-19 DOI: 10.1109/ISPA.2007.4383719

D. Huang, C. Xiang, S. S. Ge

引用次数: 2

Assessment of the Regional Myocardial Displacement by a New Method Using Spectral Tissue Doppler in Compare with the Tissue Tracking 与组织跟踪法比较，用组织谱多普勒评价心肌局部位移

2007 5th International Symposium on Image and Signal Processing and Analysis Pub Date : 2007-11-19 DOI: 10.1109/ISPA.2007.4383712

H. Moladoust, M. Mokhtari-Dizaji, F. Noohi, Z. Ojaghi-haghighi, A. Khajavi

{"title":"Assessment of the Regional Myocardial Displacement by a New Method Using Spectral Tissue Doppler in Compare with the Tissue Tracking","authors":"H. Moladoust, M. Mokhtari-Dizaji, F. Noohi, Z. Ojaghi-haghighi, A. Khajavi","doi":"10.1109/ISPA.2007.4383712","DOIUrl":"https://doi.org/10.1109/ISPA.2007.4383712","url":null,"abstract":"Tissue Doppler Echocardiography (TDE) method has been developed which permits quantification of the myocardial. In the clinic conventionally displacement is measured by use of color tissue Doppler imaging and there is no report of myocardial displacement based on integration of maximum myocardial velocity. The purpose of this study was a time integral assessment of spectral tissue Doppler by use of maximum traced data during systolic phase of cardiac cycle as a new method for evaluation of myocardium displacement. It performed by a developed computer program based on Simpson's numerical integral method. Spectral tissue Doppler echocardiograms were saved as a full color images and transferred to a personal computer for off-line analysis with use of the proposed method. There were significant differences at 95% confidence level between the spectral and color tissue Doppler displacements respectively. By means of Bland-Altman analysis; arithmetic means was 7.49 and 6.96 mm with SD mean differences of plusmn2.74 mm and plusmn2.26 mm in all base and mid evaluated segments. The correlation of coefficient was R=0.79, (p<0.01) for all segments between the methods.","PeriodicalId":112420,"journal":{"name":"2007 5th International Symposium on Image and Signal Processing and Analysis","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129065325","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: 0

Image Compression with Neural Networks Using Complexity Level of Images 基于图像复杂度的神经网络图像压缩

2007 5th International Symposium on Image and Signal Processing and Analysis Pub Date : 2007-11-19 DOI: 10.1109/ISPA.2007.4383706

H. Veisi, M. Jamzad

引用次数: 12

The Use of Top-View Finger Image for Personal Identification 手指俯视图在个人身份识别中的应用

2007 5th International Symposium on Image and Signal Processing and Analysis Pub Date : 2007-11-19 DOI: 10.1109/ISPA.2007.4383716

P. Chaikan, M. Karnjanadecha

引用次数: 5

The Evaluation of Performances of Automatic Method for the Object Detection in GPR Images 探地雷达图像目标自动检测方法的性能评价

2007 5th International Symposium on Image and Signal Processing and Analysis Pub Date : 2007-11-19 DOI: 10.1109/ISPA.2007.4383740

M. Golovko

引用次数: 3

Minimum MSE Filter Banks Design Using Correlated Signal Dependent Quantization Noise Model 基于相关信号相关量化噪声模型的最小MSE滤波器组设计

2007 5th International Symposium on Image and Signal Processing and Analysis Pub Date : 2007-11-19 DOI: 10.1109/ISPA.2007.4383665

A. Hjørungnes

引用次数: 0