2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems最新文献

A Thin-Plate Spline Based Multimodal Prostate Registration with Optimal Correspondences 基于薄板样条的最佳前列腺配准

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.12

J. Mitra, A. Oliver, R. Martí, X. Lladó, J. Vilanova, F. Mériaudeau

{"title":"A Thin-Plate Spline Based Multimodal Prostate Registration with Optimal Correspondences","authors":"J. Mitra, A. Oliver, R. Martí, X. Lladó, J. Vilanova, F. Mériaudeau","doi":"10.1109/SITIS.2010.12","DOIUrl":"https://doi.org/10.1109/SITIS.2010.12","url":null,"abstract":"Accurate extraction of prostate biopsy samples during Transectal Ultra Sound (TRUS) guided prostate biopsy is facilitated with the registration of pre-acquired Magnetic Resonance (MR) images with the Ultrasound (US) images. This paper proposes a novel method of generating optimal correspondences to register the MR and US images using Thin-Plate Splines (TPS) transformation. The correspondence generation method exploits the prostate shape geometry in both the modalities and is fully automatic. Normalized Mutual Information (NMI) is employed for the quantitative determination of optimal number of correspondences in terms of maximization of registration similarity. Qualitative registration results, that conform to the NMI measures are also shown for different numbers of correspondences. Shepard’s interpolation method is used with the TPS in order to deal with the interpolation error of backward TPS transformation. The accuracy of our method of correspondence generation is qualitatively evaluated in comparison with two intuitive geometric contour sampling methods. An average Dice Similarity Coefficient (DSC) value of 0.97 ± 0.01 for 4 patient datasets is obtained for the TPS registration using our novel method of correspondences.","PeriodicalId":128396,"journal":{"name":"2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems","volume":"413 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122482496","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: 15

Prostate Segmentation with Texture Enhanced Active Appearance Model 基于纹理增强活动外观模型的前列腺分割

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.14

S. Ghose, A. Oliver, R. Martí, X. Lladó, J. Freixenet, J. Vilanova, F. Mériaudeau

{"title":"Prostate Segmentation with Texture Enhanced Active Appearance Model","authors":"S. Ghose, A. Oliver, R. Martí, X. Lladó, J. Freixenet, J. Vilanova, F. Mériaudeau","doi":"10.1109/SITIS.2010.14","DOIUrl":"https://doi.org/10.1109/SITIS.2010.14","url":null,"abstract":"Prostate contour segmented from Trans Rectal Ultra Sound (TRUS) and Magnetic Resonance (MR) images could improve inter-modality registration accuracy and reduce computational complexity of the procedure. However, prostate segmentation in each of these modalities is a challenging task in presence of imaging artifacts, intensity heterogeneities, and large inter patient shape variabilities of the prostate. We propose to use Haar wavelet approximation coefficients to extract texture features of the prostate region in both modalities to guide a deformable parametric model to segment the prostate in a multi-resolution framework. Principal Component Analysis (PCA) of the shape and texture information of the prostate region obtained from the training data aids contour propagation of the deformable parametric model. Prior knowledge of the optimization space is utilized for optimal segmentation of the prostate. Our method achieves a mean Dice Similarity Coefficient (DSC) value of 0.95±0.01, with mean segmentation time of 0.72±0.05 seconds in a leave-one-out validation framework with 25 TRUS images grabbed from a video sequence. DSC value of 0.88 ± 0.06 with a mean segmentation time of 0.81 ± 0.02 seconds was recorded for MR images when validated with 15 central slice images of 15 datasets from the MICCAI prostate segmentation challenge 2009. Our proposed method performs computationally efficient accurate multi-modal prostate segmentation in presence of intensity heterogeneities and imaging artifacts.","PeriodicalId":128396,"journal":{"name":"2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129046503","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: 21

Effective Feature Selection for Face Recognition Based on Correspondence Analysis and Trained Artificial Neural Network 基于对应分析和训练神经网络的人脸识别有效特征选择

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.23

Z. Pazoki, F. Farokhi

引用次数: 4

The Comparison of Different Classifiers for Precision Improvement in Image Retrieval 提高图像检索精度的不同分类器的比较

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.39

M. S. Lotfabadi, Rezvam Mahmoudie

引用次数: 3

Biological Sensor Fusion Using Sensor Reliability Evaluation for Situation Assesment 基于传感器可靠性评估的生物传感器融合态势评估

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.28

Yoshitaka Sakurai, K. Takada, Takashi Kawabe, S. Tsuruta

{"title":"Biological Sensor Fusion Using Sensor Reliability Evaluation for Situation Assesment","authors":"Yoshitaka Sakurai, K. Takada, Takashi Kawabe, S. Tsuruta","doi":"10.1109/SITIS.2010.28","DOIUrl":"https://doi.org/10.1109/SITIS.2010.28","url":null,"abstract":"In Web-based CSCW (Computer-Supported Cooperative Work), remote members communicate their intentions in cyberspace. However, different from face-to-face communication, partners' situations including their interest, concentration, boredom, and tiredness cannot be easily transmitted. Oversight and mishearing of remote partners is often overlooked. Besides, it is further difficult to understand their real intentions sufficiently. To overcome these problems, biological sensor fusion for dependable Web-based CSCW Systems is proposed. This assesses or estimates situations of remote users through fusing information of multiple biological sensors and the related general contexts. By transmitting and using information of estimated usersf situations, the system augments the cyberspace through stressing or providing warnings by multimedia. This paper clarifies the mechanism of sensor fusion engine that uses probabilistic or statistical data to increase estimation reliability and can learn from log data of feature vectors or symptoms to decrease knowledge acquisition bottleneck. The proposed method aims at improving reliability of situation estimation by evaluating the reliability and feed-backing the evaluation results by information requests. The reliability of the output on each process layer is evaluated based on the past log and related information. Based on the evaluated reliability, estimated situations are improved by information request to related sensors.","PeriodicalId":128396,"journal":{"name":"2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131950601","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

Backtrack and Restart Genetic Algorithm to Optimize Delivery Schedule 回溯与重启遗传算法优化交货计划

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.24

Yoshitaka Sakurai, K. Takada, Natsuki Tsukamoto, T. Onoyama, R. Knauf, S. Tsuruta

{"title":"Backtrack and Restart Genetic Algorithm to Optimize Delivery Schedule","authors":"Yoshitaka Sakurai, K. Takada, Natsuki Tsukamoto, T. Onoyama, R. Knauf, S. Tsuruta","doi":"10.1109/SITIS.2010.24","DOIUrl":"https://doi.org/10.1109/SITIS.2010.24","url":null,"abstract":"A delivery route optimization system greatly improves the real time delivery efficiency. To realize such an optimization, its distribution network requires solving several tens to hundreds (max. 1500-2000) cities Traveling Salesman Problems (TSP) within interactive response time (around 3 seconds) with expert-level accuracy (below 3% level of error rate). To meet these requirements, a Backtrack and Restart Genetic Algorithm (Br-GA) is proposed and compared with conventional ones, especially such as an Inner Random Restart Genetic Algorithm (Irr-GA). This method combines Backtracking and GA having simple heuristics such as 2-opt and NI (Nearest Insertion) so that, in case of stagflation, GA can restarts with the state of populations going back to the state in the generation before stagflation. Including these heuristics, field experts and field engineers can easily understand the way and use it. Using the tool applying their method, they can easily create/modify the solutions or conditions interactively depending on their field needs. Experimental results proved that the method meets the above-mentioned delivery scheduling requirements more than other methods from the viewpoint of optimality as well as simplicity. Especially as to optimality, Br-GA is superior to even Irr-GA.","PeriodicalId":128396,"journal":{"name":"2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems","volume":"32 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113944564","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: 4

Multiple Birth and Cut Algorithm for Point Process Optimization 点过程优化的多生切算法

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.17

A. Gamal-Eldin, X. Descombes, J. Zerubia

引用次数: 20

Thermal Physiological Moment Invariants for Face Identification 人脸识别的热生理矩不变性

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.11

K. Abas, O. Ono

{"title":"Thermal Physiological Moment Invariants for Face Identification","authors":"K. Abas, O. Ono","doi":"10.1109/SITIS.2010.11","DOIUrl":"https://doi.org/10.1109/SITIS.2010.11","url":null,"abstract":"This paper presents the extension of our previous work on moment invariants with respect to centroid point (obtained from frontal mugs hot images) for thermal-based face identification system. In previous work, seeded region growing method was applied for background filtering. Sequentially, the system decomposes a background filtered thermal image into 4 thermal regions via 3-valued threshold method. In the extension of the pre-processes, we employed anis tropic diffusion between these two steps. This step aids in decreasing the effect of noise. Furthermore, previously we only considered frontal mugs hot images as registered images, therefore, in this paper we include mid-profiles and left and right profile in the registered dataset. This is to overcome for images with angular pose that exceeds 45 degrees to the left and right. Due to multiple angular pose available in the registered dataset, customized and simple pose estimation is introduced in this paper. The pose estimation utilizes information previously obtained during the pre-processes, thus avoiding additional steps that is required if current available pose estimation methods were to be employed. This system employs minimum distance measurement method for classification purposes. The encouraging performance of this system is represented by a cumulative match characteristic curve (also known as the CMC curve) at the end of this paper.","PeriodicalId":128396,"journal":{"name":"2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127821300","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: 4

A Preliminary Study to Reduce the Missing Wedge Effect by Using a Noise Robust Mojette Reconstruction 利用噪声鲁棒Mojette重构降低缺失楔效应的初步研究

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.33

B. Recur, P. Desbarats, J. Domenger

引用次数: 1

Starfruit Image Segmentation Based on YCbCr Color Space 基于YCbCr颜色空间的杨桃图像分割

2010 Sixth International Conference on Signal-Image Technology and Internet Based Systems Pub Date : 2010-12-15 DOI: 10.1109/SITIS.2010.36

R. Amirulah, M. Mokji, Z. Ibrahim, U. U. Sheikh

引用次数: 4