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A decision model of stroke patient rehabilitation with augmented reality-based games 基于增强现实游戏的脑卒中患者康复决策模型
自主智能系统(英文) Pub Date : 2010-06-21 DOI: 10.1109/AIS.2010.5547014
A. Alamri, Heung-Nam Kim, Abdulmotaleb El Saddik
{"title":"A decision model of stroke patient rehabilitation with augmented reality-based games","authors":"A. Alamri, Heung-Nam Kim, Abdulmotaleb El Saddik","doi":"10.1109/AIS.2010.5547014","DOIUrl":"https://doi.org/10.1109/AIS.2010.5547014","url":null,"abstract":"Computer-based systems for stroke rehabilitation can potentially reduce complexity in rehabilitation processes. One of important issues among the rehabilitation systems is how to continuously evaluate patient's performances from such systems. Without a proper measurement for patient's performance, therapists suffer from accurate decision making in patient treatments. Therefore, the main focus of this paper is to develop a rehabilitation system that can minimize therapist supervision. To this end, we develop augmented reality-based rehabilitation system that can automatically capture patients' performance as well as visually monitor patients' progress. We also propose performance measurements of patients to improve decision making abilities of therapists. By analyzing performance data, we discover useful rules for further enhancement of the patients' treatment plan.","PeriodicalId":71187,"journal":{"name":"自主智能系统(英文)","volume":"3 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82646775","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: 8
Predicting the time to localized muscle fatigue using ANN and evolved sEMG feature 利用神经网络和演化表面肌电信号特征预测局部肌肉疲劳时间
自主智能系统(英文) Pub Date : 2010-06-21 DOI: 10.1109/AIS.2010.5547025
M. Al-Mulla, F. Sepulveda
{"title":"Predicting the time to localized muscle fatigue using ANN and evolved sEMG feature","authors":"M. Al-Mulla, F. Sepulveda","doi":"10.1109/AIS.2010.5547025","DOIUrl":"https://doi.org/10.1109/AIS.2010.5547025","url":null,"abstract":"Surface Electromyography (sEMG) activity of the biceps muscle was recorded from nine subjects. Data were recorded while subjects performed dynamic contraction until fatigue. The signals were initially segmented into two parts (Non-Fatigue and Transition-to-Fatigue) to enable the evolutionary process. A novel feature was evolved by selecting then using a combination of the eleven sEMG muscle fatigue features and six mathematical operators. The evolutionary program used the DB index in its fitness function to derive the best feature that best separate the two segments (Non-Fatigue and Transition-to-Fatigue), for both Maximum Dynamic Strength (MDS) percentage of 40 and 70 MDS. Using the evolved feature we enabled an ANN to predict the time to fatigue by using only twenty percent of the total sEMG signal with an average prediction error of 9.22%.","PeriodicalId":71187,"journal":{"name":"自主智能系统(英文)","volume":"49 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89787084","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: 11
Evaluating approaches to adaptive landscape visualization construction 适应性景观可视化构建的评价方法
自主智能系统(英文) Pub Date : 2010-06-21 DOI: 10.1109/AIS.2010.5547037
Robert Collier, M. Wineberg
{"title":"Evaluating approaches to adaptive landscape visualization construction","authors":"Robert Collier, M. Wineberg","doi":"10.1109/AIS.2010.5547037","DOIUrl":"https://doi.org/10.1109/AIS.2010.5547037","url":null,"abstract":"The construction of an adaptive landscape visualization entails the representation of the higher dimensional chromosome space onto a two-dimensional plane from which a depiction of the landscape can be created. Although it can sometimes be difficult to justify the investment of computational expense necessary to perform this representation properly, Van Wijk's visualization model is ideally suited for use as a framework in which to compare different adaptive landscape visualizations. This model is used to demonstrate that an adaptive landscape visualization that is constructed with an established multidimensional scaling technique will result in a visualization that imparts more accurate insights, and is thus more valuable, than one that does not first attempt a multidimensional scaling of the chromosome space.","PeriodicalId":71187,"journal":{"name":"自主智能系统(英文)","volume":"25 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82071879","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
Reallocations in teams of UAVs using dynamic programming and mixed initiative interactions 基于动态规划和混合主动交互的无人机团队再分配
自主智能系统(英文) Pub Date : 2010-06-21 DOI: 10.1109/AIS.2010.5547022
E. Pereira, J. Sousa
{"title":"Reallocations in teams of UAVs using dynamic programming and mixed initiative interactions","authors":"E. Pereira, J. Sousa","doi":"10.1109/AIS.2010.5547022","DOIUrl":"https://doi.org/10.1109/AIS.2010.5547022","url":null,"abstract":"We discuss the problem of dynamic reallocation of vehicles among teams of Unmanned Air Vehicles (UAV) executing concurrently. Each team addresses a task that consists of a sequence of subtasks to be executed in an adversary environment, where the vehicles face the risk of becoming inoperative. Our approach consists on separating the problem into a planning procedure followed by an optimal control problem, which is solved using stochastic dynamic programming (DP). We consider mixed-initiative interactions, where human operators are able to tune parameters of the problem according to their experience. The main goal of execution control is to balance the performance of teams in order to increase the success of the overall mission.","PeriodicalId":71187,"journal":{"name":"自主智能系统(英文)","volume":"1 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79774230","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
Segmentation of fingerprint image by using polarimetric feature 基于偏振特征的指纹图像分割
自主智能系统(英文) Pub Date : 2010-06-21 DOI: 10.1109/AIS.2010.5547039
Chao Chen, D. Zhang, Lei Zhang, Yongqiang Zhao
{"title":"Segmentation of fingerprint image by using polarimetric feature","authors":"Chao Chen, D. Zhang, Lei Zhang, Yongqiang Zhao","doi":"10.1109/AIS.2010.5547039","DOIUrl":"https://doi.org/10.1109/AIS.2010.5547039","url":null,"abstract":"Segmentation of fingerprint image is the first step of fingerprint recognition, and it plays an essential role which helps to preserve genuine and reduce false minutiae and further aids the performance of Automatic Fingerprint Identification System (AFIS). The problem of segmentation has been thoroughly studied but never been completely solved. During this paper, we propose a novel representation of fingerprint image with the added polari-metric information which is captured by Stokes Imaging System, and followed by a simple yet efficient segmentation of fingerprint image based on the polarimetric variance (Polvar). Polarimetric characteristic is another distinguishable feature beside intense that reflecting light carries, and it provides potential way to enhance the contrast between background and foreground, and between ridges and valleys as well. And therefore, there is a possibility to achieve a satisfactory segmentation results. Non-overlapping block Polvar feature is utilized to accelerate computation, and moreover the segmentation results that are based on other common used features are compared, that is block energy, block coherence, block cluster degree. Experimental results show that our proposed novel method is much efficient than the other features and simultaneously achieve higher accuracy especially it well segments the case of remaining ridges from previously scanned finger. Segmentation results are evaluated both visually by human inspire and quantitatively.","PeriodicalId":71187,"journal":{"name":"自主智能系统(英文)","volume":"1 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83033634","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
Using a randomized path planner to generate 3D task demonstrations of robot operations 使用随机路径规划器生成机器人操作的3D任务演示
自主智能系统(英文) Pub Date : 2010-06-21 DOI: 10.1109/AIS.2010.5547018
K. Belghith, F. Kabanza, L. Hartman
{"title":"Using a randomized path planner to generate 3D task demonstrations of robot operations","authors":"K. Belghith, F. Kabanza, L. Hartman","doi":"10.1109/AIS.2010.5547018","DOIUrl":"https://doi.org/10.1109/AIS.2010.5547018","url":null,"abstract":"In this paper we describe a new randomized path-planning approach presenting two novel features that are useful in various complex real-world applications. First, it handles zones in the robot workspace with different degrees of desirability. Given the random quality of paths that are calculated by traditional randomized approaches, this provides a mean to specify a sampling strategy that controls the search process to generate better paths by simply annotating regions in the free workspace with degrees of desirability. Second, our approach can efficiently re-compute paths in dynamic environments where obstacles and zones can change shape or move concurrently with the robot. The new path planner is implemented within an automated planning application for generating 3D tasks demonstrations involving a teleoperated robot arm on the International Space Station (ISS). A typical task demonstration involves moving the robot arm from one configuration to another. Our objective is to automatically plan the position of cameras to film the arm in a manner that conveys the best awareness of the robot trajectory to the user. For a given task, the robot trajectory is generated using the new path planner. The latter not only computes collision free paths but also takes into account the limited direct view of the ISS, the lighting conditions and other safety constraints about operating the robot. A suitable camera planning system is then used to find the best sequence of camera shots following the robot on its path.","PeriodicalId":71187,"journal":{"name":"自主智能系统(英文)","volume":"28 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78740193","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
Handwriting automatic classification: Application to ancient Greek inscriptions 手写自动分类:古希腊铭文的应用
自主智能系统(英文) Pub Date : 2010-06-21 DOI: 10.1109/AIS.2010.5547045
C. Papaodysseus, P. Rousopoulos, Dimitris Arabadjis, Fivi Panopoulou, M. Panagopoulos
{"title":"Handwriting automatic classification: Application to ancient Greek inscriptions","authors":"C. Papaodysseus, P. Rousopoulos, Dimitris Arabadjis, Fivi Panopoulou, M. Panagopoulos","doi":"10.1109/AIS.2010.5547045","DOIUrl":"https://doi.org/10.1109/AIS.2010.5547045","url":null,"abstract":"In this paper a new approach is presented for automatic writer identification. The approach is applied to the identification of the writer of ancient Greek inscriptions that in turn may offer precise and objective dating of the inscriptions content. Such a dating is crucial for the correct history writing. The methodology is based on the idea of creating an ideal representative of each alphabet symbol in each inscription, via proper fitting of all realizations of the specific symbol in this inscription. Next, geometric features for the ideal representative for each alphabet symbol are defined and extracted and corresponding statistical processing follows based on the computation of the mean value and variance of these characteristics. The decision for writer identification is made via pair-wise, feature based comparisons of the ideal representatives of the inscriptions. Each comparison is implemented by means of multiple statistical tests and an introduced maximum likelihood approach. The system was applied to 33 Athenian inscriptions of classical era which were correctly attributed to 8 different hands, namely with 100% success rate.","PeriodicalId":71187,"journal":{"name":"自主智能系统(英文)","volume":"79 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79892656","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: 6
Optic disc and fovea detection via multi-scale matched filters and a vessels' directional matched filter 通过多尺度匹配滤波器和血管方向匹配滤波器检测视盘和中央凹
自主智能系统(英文) Pub Date : 2010-06-21 DOI: 10.1109/AIS.2010.5547050
Bob Zhang, F. Karray
{"title":"Optic disc and fovea detection via multi-scale matched filters and a vessels' directional matched filter","authors":"Bob Zhang, F. Karray","doi":"10.1109/AIS.2010.5547050","DOIUrl":"https://doi.org/10.1109/AIS.2010.5547050","url":null,"abstract":"The optic disc (OD) and fovea are important anatomical features in retinal images. Its detections are crucial for developing an automated screening program. This paper proposes a method to automatically detect the OD and fovea in fundus images in three stages: OD vessel candidate detection, OD vessel candidate matching, and fovea detection. The first stage is achieved with multi-scale Gaussian filtering, scale production, and double thresholding to initially extract the vessels' directional map. The map is then thinned before another threshold is applied to remove pixels with low intensities. This result forms the OD vessel candidates. In the second stage, a Vessels' Directional Matched Filter (VDMF) of various dimensions is applied to the candidates to be matched, and the pixel with the smallest difference designated the OD center. Finally, the fovea is detected as the pixel with lowest intensity in a window either to the left or right of the OD center. We tested the proposed method on a subset of a new database consisting of 139 images from a diabetic retinopathy (DR) screening programme. The OD center and fovea were successfully detected with accuracies of 96.4% (134/139) and 98.1% (105/107) respectively.","PeriodicalId":71187,"journal":{"name":"自主智能系统(英文)","volume":"64 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80338816","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: 16
Environment mapping using probabilistic quadtree for the guidance and control of autonomous mobile robots 基于概率四叉树的自主移动机器人导引与控制环境映射
自主智能系统(英文) Pub Date : 2010-06-21 DOI: 10.2316/Journal.201.2011.4.201-2292
C. Cocaud, A. Jnifene
{"title":"Environment mapping using probabilistic quadtree for the guidance and control of autonomous mobile robots","authors":"C. Cocaud, A. Jnifene","doi":"10.2316/Journal.201.2011.4.201-2292","DOIUrl":"https://doi.org/10.2316/Journal.201.2011.4.201-2292","url":null,"abstract":"This paper presents the implementation of an environment mapping technique based on a probabilistic quadtree which records the location of static and dynamic obstacles, as well as the certainty over each obstacle's estimated position. The quadtree-based map is updated online (i.e. near-real time) based on multi-sensor feeds originating from one to three X80 mobile robots operating simultaneously. The probabilistic quadtree map is part of a guidance and navigation control system which combines a Genetic Algorithm-based global path planner and a Potential Field local controller. The centralized map is shared by all mobile robots although each robot has an independent controller. Performance of the proposed method for this guidance and navigation control system is demonstrated experimentally with the Dr. Robot's ™ wireless X80 mobile robots.","PeriodicalId":71187,"journal":{"name":"自主智能系统(英文)","volume":"27 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82294421","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: 10
Automated epileptic seizure onset detection 自动癫痫发作检测
自主智能系统(英文) Pub Date : 2010-06-21 DOI: 10.1109/AIS.2010.5547053
Arvind Dorai, K. Ponnambalam
{"title":"Automated epileptic seizure onset detection","authors":"Arvind Dorai, K. Ponnambalam","doi":"10.1109/AIS.2010.5547053","DOIUrl":"https://doi.org/10.1109/AIS.2010.5547053","url":null,"abstract":"Epilepsy is a serious neurological disorder characterized by recurrent unprovoked seizures due to abnormal or excessive neuronal activity in the brain. An estimated 50 million people around the world suffer from this condition, and it is classified as the second most serious neurological disease known to humanity, after stroke. With early and accurate detection of seizures, doctors can gain valuable time to administer medications and other such anti-seizure countermeasures to help reduce the damaging effects of this crippling disorder. The time-varying dynamics and high inter-individual variability make early prediction of the seizure state a challenging task. Many studies have shown that EEG signals do have valuable information that, if correctly analyzed, could help in the prediction of seizures in epileptic patients before their occurrence. Several mathematical transforms have been analyzed for its correlation with seizure onset prediction, and a series of experiments were done to certify their strengths. New algorithms are presented to help clarify, monitor, and cross-validate the classification of EEG signals to predict the ictal (i.e. seizure) states, specifically the preictal, interictal, and postictal states in the brain. These new methods show promising results in detecting the presence of a preictal phase prior to the ictal state.","PeriodicalId":71187,"journal":{"name":"自主智能系统(英文)","volume":"46 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78818378","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: 25
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