Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference最新文献_第6页

Automatic sleep staging based on ECG signals using hidden Markov models. 基于隐马尔可夫模型的心电信号自动睡眠分期。

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference Pub Date : 2015-01-01 DOI: 10.1109/EMBC.2015.7318416

Ying Chen, Xin Zhu, Wenxi Chen

{"title":"Automatic sleep staging based on ECG signals using hidden Markov models.","authors":"Ying Chen, Xin Zhu, Wenxi Chen","doi":"10.1109/EMBC.2015.7318416","DOIUrl":"https://doi.org/10.1109/EMBC.2015.7318416","url":null,"abstract":"This study is designed to investigate the feasibility of automatic sleep staging using features only derived from electrocardiography (ECG) signal. The study was carried out using the framework of hidden Markov models (HMMs). The mean, and SD values of heart rates (HRs) computed from each 30-second epoch served as the features. The two feature sequences were first detrended by ensemble empirical mode decomposition (EEMD), formed as a two-dimensional feature vector, and then converted into code vectors by vector quantization (VQ) method. The output VQ indexes were utilized to estimate parameters for HMMs. The proposed model was tested and evaluated on a group of healthy individuals using leave-one-out cross-validation. The automatic sleep staging results were compared with PSG estimated ones. Results showed accuracies of 82.2%, 76.0%, 76.1% and 85.5% for deep, light, REM and wake sleep, respectively. The findings proved that HRs-based HMM approach is feasible for automatic sleep staging and can pave a way for developing more efficient, robust, and simple sleep staging system suitable for home application.","PeriodicalId":72689,"journal":{"name":"Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference","volume":"1 1","pages":"530-3"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79602474","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

Immersive BCI with SSVEP in VR head-mounted display. 沉浸式脑机接口与SSVEP在VR头戴式显示器。

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference Pub Date : 2015-01-01 DOI: 10.1109/EMBC.2015.7318558

Bonkon Koo, Hwan-Gon Lee, Yunjun Nam, Seungjin Choi

引用次数: 5

Markerless registration for image-guided endoscopic retrograde cholangiopancreatography (ERCP). 图像引导下内镜逆行胆管造影(ERCP)的无标记配准。

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference Pub Date : 2015-01-01 DOI: 10.1109/EMBC.2015.7319006

Young-Gi Jung, Myeongjin Kim, Doo Yong Lee

{"title":"Markerless registration for image-guided endoscopic retrograde cholangiopancreatography (ERCP).","authors":"Young-Gi Jung, Myeongjin Kim, Doo Yong Lee","doi":"10.1109/EMBC.2015.7319006","DOIUrl":"https://doi.org/10.1109/EMBC.2015.7319006","url":null,"abstract":"This paper proposes methods for markerless registration, which enable tracking pose of the endoscope camera in real time for implementation of the image-guided ERCP. Edge-based initialization is developed to determine the initial pose of the endoscope camera. Images of virtual endoscope are rendered from the virtual 3D organ model constructed from the patient's CT images. The similarity between edges on the image of the virtual and real endoscope is exploited for registration. An optical-flow-based tracking method is developed to track the changes starting from the initial pose of the endoscope camera in real time. The redefinition method is proposed to prevent the accumulation of the tracking error. Accuracy of the proposed methods is compared with the previous methods. The initialization method reduces 5.2 mm, 33.1 degrees, and 10.9 degrees of the position, direction, and roll angle error, on average, respectively. The tracking method reduces 3.5 degrees and 1.7 degrees of the hysteresis error in the direction angle and roll angle, respectively, with 15% faster update rate.","PeriodicalId":72689,"journal":{"name":"Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference","volume":"25 1","pages":"2932-5"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78195820","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

Effects of contralateral acoustic stimulation on otoacoustic emissions induced by swept tones. 对侧声刺激对扫频声诱发耳声发射的影响。

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference Pub Date : 2015-01-01 DOI: 10.1109/EMBC.2015.7318957

Shixiong Chen, Yanbing Jin, Lisheng Xu, Guanglin Li

{"title":"Effects of contralateral acoustic stimulation on otoacoustic emissions induced by swept tones.","authors":"Shixiong Chen, Yanbing Jin, Lisheng Xu, Guanglin Li","doi":"10.1109/EMBC.2015.7318957","DOIUrl":"https://doi.org/10.1109/EMBC.2015.7318957","url":null,"abstract":"The medial olivocochlear complex (MOC) is an auditory nucleus that projects efferent nerve fibers to control the behaviors of both sides of the cochlea. Otoacoutsic emissions (OAEs) are by-products the activities of the outer hair cells (OHCs) in the cochlea and could be used as a noninvasive way to study the efferent control of the MOC. However, existing results regarding the efferent control are quite controversial and often restricted to a rather limited frequency range. In this study, a new method of measuring stimulus frequency otoacoustic emissions (SFOAEs) with the presence of a contralateral acoustic stimulation (CAS) was proposed to study the efferent control over the cochlea. SFOAEs were measured with swept tones with time varying frequencies so that SFOAE spectra with and without the presence of the CAS could be compared with high frequency-resolution. The results showed that there was consistent decrease in the amplitude of the swept-tone SFOAEs across a wide frequency range from 0.5 to 8 kHz when the CAS was presented, suggesting an outstanding attenuation of OHC activities by the efferent control from the MOC. The SFOAE decrease with the presence of the CAS might provide a new approach to measure the strength of the efferent control and to evaluate the functional status of the central auditory pathway.","PeriodicalId":72689,"journal":{"name":"Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference","volume":"12 4","pages":"2733-6"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/EMBC.2015.7318957","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72459772","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

A microfabricated coil for implantable applications of magnetic spinal cord stimulation. 一种用于脊髓磁刺激植入式应用的微制造线圈。

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference Pub Date : 2015-01-01 DOI: 10.1109/EMBC.2015.7319982

Yu-Min Fu, Che-Yu Chen, Xin-Hong Qian, Yu-Ting Cheng, Chung-Yu Wu, Jui-Sheng Sun, Chien-Chun Huang, Chao-Kai Hu

引用次数: 0

Frame-based compressive sensing MR image reconstruction with balanced regularization. 基于帧的平衡正则化压缩感知MR图像重建。

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference Pub Date : 2015-01-01 DOI: 10.1109/EMBC.2015.7320011

Shoulie Xie, Cuntai Guan, Weimin Huang, Zhongkang Lu

{"title":"Frame-based compressive sensing MR image reconstruction with balanced regularization.","authors":"Shoulie Xie, Cuntai Guan, Weimin Huang, Zhongkang Lu","doi":"10.1109/EMBC.2015.7320011","DOIUrl":"https://doi.org/10.1109/EMBC.2015.7320011","url":null,"abstract":"This paper addresses the frame-based MR image reconstruction from undersampled k-space measurements by using a balanced ℓ(1)-regularized approach. Analysis-based and synthesis-based approaches are two common methods in ℓ(1)-regularized image restoration. They are equivalent under the orthogonal transform, but there exists a gap between them under redundant transform such as frame. Thus the third approach was developed to reduce the gap by penalizing the distance between the representation vector and the canonical frame coefficient of the estimated image, this balanced approach bridges the synthesis-based and analysis-based approaches and balances the fidelity, sparsity and smoothness of the solution. These frame-based approaches have been studied and compared for optical image restoration over the last few years. In this paper, we further study and compare these three approaches for the compressed sensing MR image reconstruction under redundant frame domain. These ℓ(1)-regularized optimization problems are solved by using a variable splitting strategy and the classical alternating direction method of multiplier (ADMM). Numerical simulation results show that the balanced approach can reduce the gap between the analysis-based and synthesis-based approaches and are even better than these two approaches under our experimental conditions.","PeriodicalId":72689,"journal":{"name":"Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference","volume":"1993 1","pages":"7031-4"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82400310","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

Determination of border irregularity in dermoscopic color images of pigmented skin lesions. 皮肤镜下色素性皮肤病变彩色图像边界不规则性的测定。

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference Pub Date : 2015-01-01 DOI: 10.1109/EMBC.2015.7318940

J. Jaworek-Korjakowska, R. Tadeusiewicz

引用次数: 0

Preliminary exploration of the measurement of walking speed for the apoplectic people based on UHF RFID. 基于超高频RFID的中风患者步行速度测量的初步探索。

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference Pub Date : 2015-01-01 DOI: 10.1109/EMBC.2015.7320258

Huang Hua-Lin, Mo Ling-Fei, Liu Ying-Jie, Li Cheng-Yang, Xu Qi-Meng, Wu Zhi-Tong

{"title":"Preliminary exploration of the measurement of walking speed for the apoplectic people based on UHF RFID.","authors":"Huang Hua-Lin, Mo Ling-Fei, Liu Ying-Jie, Li Cheng-Yang, Xu Qi-Meng, Wu Zhi-Tong","doi":"10.1109/EMBC.2015.7320258","DOIUrl":"https://doi.org/10.1109/EMBC.2015.7320258","url":null,"abstract":"The number of the apoplectic people is increasing while population aging is quickening its own pace. The precise measurement of walking speed is very important to the rehabilitation guidance of the apoplectic people. The precision of traditional measuring methods on speed such as stopwatch is relatively low, and high precision measurement instruments because of the high cost cannot be used widely. What's more, these methods have difficulty in measuring the walking speed of the apoplectic people accurately. UHF RFID tag has the advantages of small volume, low price, long reading distance etc, and as a wearable sensor, it is suitable to measure walking speed accurately for the apoplectic people. In order to measure the human walking speed, this paper uses four reader antennas with a certain distance to reads the signal strength of RFID tag. Because RFID tag has different RSSI (Received Signal Strength Indicator) in different distances away from the reader, researches on the changes of RSSI with time have been done by this paper to calculate walking speed. The verification results show that the precise measurement of walking speed can be realized by signal processing method with Gaussian Fitting-Kalman Filter. Depending on the variance of walking speed, doctors can predict the rehabilitation training result of the apoplectic people and give the appropriate rehabilitation guidance.","PeriodicalId":72689,"journal":{"name":"Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference","volume":"7 1","pages":"8038-41"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76455541","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

Orientation and depth estimation for femoral components using image sensor, magnetometer and inertial sensors in THR surgeries. 利用图像传感器、磁强计和惯性传感器估计THR手术中股骨部件的方位和深度。

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference Pub Date : 2015-01-01 DOI: 10.1109/EMBC.2015.7318958

Jiyang Gao, Shaojie Su, Hong Chen, Zhihua Wang

{"title":"Orientation and depth estimation for femoral components using image sensor, magnetometer and inertial sensors in THR surgeries.","authors":"Jiyang Gao, Shaojie Su, Hong Chen, Zhihua Wang","doi":"10.1109/EMBC.2015.7318958","DOIUrl":"https://doi.org/10.1109/EMBC.2015.7318958","url":null,"abstract":"Malposition of the acetabular and femoral component has long been recognized as an important cause of dislocation after total hip replacement (THR) surgeries. In order to help surgeons improve the positioning accuracy of the components, a visual-aided system for THR surgeries that could estimate orientation and depth of femoral component is proposed. The sensors are fixed inside the femoral prosthesis trial and checkerboard patterns are printed on the internal surface of the acetabular prosthesis trial. An extended Kalman filter is designed to fuse the data from inertial sensors and the magnetometer orientation estimation. A novel image processing algorithm for depth estimation is developed. The algorithms have been evaluated under the simulation with rotation quaternion and translation vector and the experimental results shows that the root mean square error (RMSE) of the orientation estimation is less then 0.05 degree and the RMSE for depth estimation is 1mm. Finally, the femoral head is displayed in 3D graphics in real time to help surgeons with the component positioning.","PeriodicalId":72689,"journal":{"name":"Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference","volume":"24 1","pages":"2737-40"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83783147","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

Sleep spindle detection using deep learning: A validation study based on crowdsourcing. 使用深度学习的睡眠纺锤波检测:基于众包的验证研究。

Conference proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual Conference Pub Date : 2015-01-01 DOI: 10.1109/EMBC.2015.7318980

Dakun Tan, Rui Zhao, Jinbo Sun, Wei Qin

引用次数: 2