{"title":"A Novel Feature Extraction for American Sign Language Recognition Using Webcam","authors":"Ariya Thongtawee, Onamon Pinsanoh, Y. Kitjaidure","doi":"10.1109/BMEICON.2018.8609933","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609933","url":null,"abstract":"Sign language is physical communication for contributing the meaning instead of using voice to demonstrate communicator’s opinion. This paper introduces a simple and efficient algorithm for feature extraction to recognize American Sign Language alphabets from both static and dynamic gestures. The proposed algorithm comprises of four different techniques: Number of white pixels at the edge of the image (NwE), Finger length from the centroid point (Fcen), Angles between fingers (AngF) and Differences of angles between fingers of the first and last frame (delAng). After extracting features from video images, an Artificial Neural Network (ANN) is used to classify the signs. The result of these experiments is achieved up to 95% recognition rate, which is clearly to be the highest accuracy comparing with the other research worked in this field.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121292486","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}
{"title":"A comparative study of 3 deep learning models for Pap smear screening","authors":"Y. Promworn, C. Pintavirooj, W. Piyawattanametha","doi":"10.1109/BMEICON.2018.8609945","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609945","url":null,"abstract":"This work presents a comparative study of automated screening procedure for Pap smear with deep learning technology. Three convolution neural network models (AlexNet, densenet161 and resnet101) were employed for detecting the presence of cervical precancerous or cancerous cells from Pap smear database. The study compares accuracy, sensitivity, specificity, and computation time for each deep learning model. The best model is the densenet161 due to its high sensitivity and accuracy which are key factors in an automated Pap smear screening procedure to offer the best early detection of cervical cancer to better treatment outcomes.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121826043","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}
Mitsutoshi Kimura, Takuya Katai, Hidetaka Ushimizu, Shotaro Kawamoto, K. Masuda, S. Enosawa
{"title":"Fabrication of flow phantom to mimic blood vessel to adopt therapeutic experiment using ultrasound","authors":"Mitsutoshi Kimura, Takuya Katai, Hidetaka Ushimizu, Shotaro Kawamoto, K. Masuda, S. Enosawa","doi":"10.1109/BMEICON.2018.8609975","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609975","url":null,"abstract":"We are developing a therapeutic system that uses acoustic radiation force to control a micro object in blood vessel aiming to reach target area such as tumors. However, there was limitation to perform verification experiments with in vivo blood vessels, because of the difficulties of inserting a micro object into an actual blood vessel. Therefore, we considered to fabricate a phantom with the actual shape of blood vessels which has a permeability of acoustic radiation force and a visualization on echogram as well as in vivo blood vessel. First, we prepared six types of materials including silicon and rubber to mimic vessel wall, which can be fabricated by a 3D printer. Next, we prepared agar to mimic surrounding tissues and blended graphite powder to reproduce speckles on echograms. After verification with echograms, the optimal combination selected was UV curable silicon rubber as vessel wall. The fabricated phantom with pseudo blood flow was examined for visualization of the branched structure by both B-mode and Doppler-mode. As the result of 3D reconstruction of the ultrasound volumes, the structure of the blood vessel was clearly visualized. Also, the phantom was applicable to an active induction experiment of thin catheter using acoustic radiation force.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132111504","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}
{"title":"The Study of Amulet Impacted by a Bullet using FEA","authors":"Joompon Bamrungwong, P. Woraratsoontorn","doi":"10.1109/BMEICON.2018.8609951","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609951","url":null,"abstract":"Nowadays, a lot of crimes news appear on the different types of mass media. People can be considered who have occasion to survive from gunman by amulet. The amulet is attached on the chest under shirt that may be a cause of survival. This research aims to study the behavior of the amulet object impacted by copper 9 mm FMJ (Full Metal Jacket) bullet at various conditions. The amulet is made of metals. The finite element analysis (FEA) was used to study the different conditions of shooting. The results reveal that amulet made of hard material like a stainless steel or brass can helps to have a chance of survival but can injure with maximum pressure approx. 500 MPa transfer from the bullet on the victim’s chest. However, most of amulets are made of copper, brass and silver alloy. Author recommended three millimeters thickness with high yield stress. The shooting angle around 30 degrees can absorb the energy and deviates trajectory of the bullet by bullet and amulet move together. Nevertheless, increasing impact angle leads to more energy absorption and deviation the bullet after impacted the amulet. The people hang the amulet with them has possible a chance of survival. At least they might be wounded on chest that’s all.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"13 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132226932","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}
Chen-Hsun Weng, Hsin-Yi Chou, Ming-Huang Chen, Yu-Sheng Lin
{"title":"A portable platform for the quantification of vitamin D levels by using paper-based microfluidic","authors":"Chen-Hsun Weng, Hsin-Yi Chou, Ming-Huang Chen, Yu-Sheng Lin","doi":"10.1109/BMEICON.2018.8609988","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609988","url":null,"abstract":"Vitamin D deficiency has been linked to several diseases and adverse outcomes including: diabetes, cardiovascular diseases, and even cancer. At present the clear majority of vitamin D testing is performed in large-scale laboratories at the request of a physician as part of an annual panel of blood tests. Here we present a paper-based microfluidic system for rapid quantification of vitamin D levels on a portable platform. The system consists of a smartphone accessory, an app, and a test strip that allows the colorimetric detection of 25-hydroxyvitamin D using a novel gold nanoparticle-based immunoassay. We show that the system can be used to accurately measure physiological levels of 25-hydroxyvitamin D with accuracy better than 25 nM and a precision of 10 nM. We compare our system with well-established ELISA test kits for serum samples of unknown concentration and demonstrate equivalency of the results.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123003055","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}
{"title":"New Comprehension of Regenerative Process of Hair Cells Under Hypothesis That Hair Cell Resonates By Itself For Incoming Sound","authors":"Y. Horii, W. Hong, A. Tamaki, T. Kitamura","doi":"10.1109/BMEICON.2018.8609980","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609980","url":null,"abstract":"Different from human’s ears, injured hearing system of birds can be regenerated within two weeks even if their hair cells are damaged by exposure of large sounds. In terms of the regenerative process of birds’ ears, it is pointed out that the hair cells hearing the lower frequency are cured first, and then, those for higher frequencies are gradually recovered [1]. However, are the damaged hair cells repaired like this In other words, do the birds regain hearing from the lower frequencies to the higher ones When we assume that the hair cells had their own resonant frequency and detected sounds based on such resonance, different comprehension might be possible on the experimental results in [1]. In this paper, we would like to argue the regenerative process of the injured birds’ ears under the hypothesis that the hair cells have resonant system for incoming sounds.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122538374","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}
{"title":"An E. coli screening machine in water via fluorescence detection","authors":"Aniwat Juhong, W. Piyawattanametha","doi":"10.1109/BMEICON.2018.8609922","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609922","url":null,"abstract":"We have developed a fluorescence based detection for rapid E. coli which is an indicator for fecal contamination for water quality. This technology has cut down the time taken to detect E. coli from a few days to just a couple of hours. The system relies on the enzyme β-D glucuronidase (GUD) reacts with 4-methylumblliferyl-β-D glucuronide (MUG) resulting in a byproduct named 4-methylumbellliferone (4MU). Our system can detect this byproduct in the concentration range from 0.01 to 80 μM which can then be enumerated to be the number of E. coli.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122550193","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}
{"title":"Therapeutic drug level testing based on Raman spectroscopy of the tear fluid","authors":"Kana Kodama, Kenji Yamada","doi":"10.1109/BMEICON.2018.8609934","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609934","url":null,"abstract":"We have developed the drug level testing based on Raman Spectroscopy of tear fluid. In this study, we examined the detection limit of Paper-based Surface Raman Spectroscopy (PSERS) and simulated Line and Space photonics crystal Surface Raman Spectroscopy (L/SSERS). The results implicated the usefulness of this method.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125661558","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}
{"title":"The Walking Assistance System using the Lower Limb Exoskeleton Suit Commanded by Backpropagation Neural Network","authors":"Obnithi Karantarat, Y. Kitjaidure","doi":"10.1109/BMEICON.2018.8609981","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609981","url":null,"abstract":"Currently there are many elderly people who have walking problems. This paper aims to develop and solve these problems by introducing walking assistance system which can recognize 3 types of gestures, include walking, sitting and standing. Our system is divided into 3 main parts including Feature extraction which consists of Time domain and Frequency domain, Classification and Exoskeleton suit system. Conjugate Gradient Backpropagation Neural Network is used to classify sEMG signal of lower limb posture after extracted the features. Then the output of classification is used to command the Exoskeleton suit to perform the gesture according to the results of the recognition. In addition, our paper uses PID controller to control DC motor of Four Bar Linkages Mechanisms of Lower Limb Exoskeleton suit in order to reduce the number of motors and increase stability during the Stance Phase. The results from the experiment have concluded that all feature in time domain has the most recognition rate which up to 99.39%.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129437830","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}
{"title":"Force-Temporal Characteristics of EEG-EMG Coherence During Isometric Contraction of the Tibialis Anterior Muscle","authors":"T. Igasaki, Kent Yamashita, Takeshi Ushijima","doi":"10.1109/BMEICON.2018.8609919","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609919","url":null,"abstract":"The coherence between electroencephalogram (EEG) and electromyogram (EMG) of the tibialis anterior (TA) muscle during isometric contraction is observed in the beta band (15 to 35 Hz). When the contraction force becomes stronger, the peak coherence frequency shifts to the gamma band (35 to 60 Hz). In contrast, based on the maintenance of contraction with the weak force, the peak coherence value increases. However, the manner in which coherence changes according to the maintenance of contraction with strong force remains unknown. In this study, five healthy male university students were directed to execute isometric contraction by dorsiflexion of their right ankle joint for 1 min with forces of 10 to 60% of the maximum voluntary contraction. During dorsiflexion, EEG and EMG of the TA muscle were performed. Then, the changes in coherence between EEG and EMG were examined, corresponding to the changes in contraction force and time course. In the majority of subjects, the peak coherence during the weak contraction force was observed in the beta band and lasted for 12 to 60 s. However, the peak coherence during the strong contraction force was observed in the gamma band only for the first 12 s. Subsequently, no significant coherence was observed. Therefore, muscle fatigue due to strong contraction forces and/or maintenance of the weak contraction force may have been observed as a different property of the peak coherence.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127283991","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}