Pub Date : 2009-03-06DOI: 10.1109/CSPA.2009.5069202
D. Shin, Y. Moon
Recently, many researchers are actively studying on the reconstruction of 3-dimensional structures from the 2-dimensional images acquired from a stereo camera. However, the disparity map calculated from the existing methods does not always provide accurate depth information by the false matching and occluded areas. In this paper, by simultaneously applying the feature-based methods [1] and region-based methods[2], we effectively solve the problems caused by the false matching and occluded regions[3]. By experimental results we show that the proposed method can generate more accurate disparity map even in the case of occluded area or complex texture area [4].
{"title":"A robust SIFT-based matching algorithm for the occluded area and complex texture","authors":"D. Shin, Y. Moon","doi":"10.1109/CSPA.2009.5069202","DOIUrl":"https://doi.org/10.1109/CSPA.2009.5069202","url":null,"abstract":"Recently, many researchers are actively studying on the reconstruction of 3-dimensional structures from the 2-dimensional images acquired from a stereo camera. However, the disparity map calculated from the existing methods does not always provide accurate depth information by the false matching and occluded areas. In this paper, by simultaneously applying the feature-based methods [1] and region-based methods[2], we effectively solve the problems caused by the false matching and occluded regions[3]. By experimental results we show that the proposed method can generate more accurate disparity map even in the case of occluded area or complex texture area [4].","PeriodicalId":338469,"journal":{"name":"2009 5th International Colloquium on Signal Processing & Its Applications","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116157048","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}
Pub Date : 2009-03-06DOI: 10.1109/CSPA.2009.5069183
C. Hema, M. Paulraj, Sazali Yaacob, A. H. Adom, R. Nagarajan
This work investigates how signal representations affect the performance of a motor imagery recognition system, specifically we investigate on recognition accuracy and computational time of a brain machine interface designed using motor imagery. Experiments show that the signal length should not be larger than a critical range for good recognition accuracy. The results presented here is a part of our work on the design and development of a brain machine interface to operate a wheelchair. EEG motor imagery signals recorded from the motor cortex area using non-invasive electrodes, are used for recognition of four tasks namely, left, right, forward and stop. Experiments are conducted for 12 signal representations from signal lengths varying from 3s to 0.25s. From the results it is observed that good recognition accuracies (93.2% –94.2%) are obtainable for 2s to 3s signal representations
{"title":"Brain machine interface: Motor imagery recognition with different signal length representations","authors":"C. Hema, M. Paulraj, Sazali Yaacob, A. H. Adom, R. Nagarajan","doi":"10.1109/CSPA.2009.5069183","DOIUrl":"https://doi.org/10.1109/CSPA.2009.5069183","url":null,"abstract":"This work investigates how signal representations affect the performance of a motor imagery recognition system, specifically we investigate on recognition accuracy and computational time of a brain machine interface designed using motor imagery. Experiments show that the signal length should not be larger than a critical range for good recognition accuracy. The results presented here is a part of our work on the design and development of a brain machine interface to operate a wheelchair. EEG motor imagery signals recorded from the motor cortex area using non-invasive electrodes, are used for recognition of four tasks namely, left, right, forward and stop. Experiments are conducted for 12 signal representations from signal lengths varying from 3s to 0.25s. From the results it is observed that good recognition accuracies (93.2% –94.2%) are obtainable for 2s to 3s signal representations","PeriodicalId":338469,"journal":{"name":"2009 5th International Colloquium on Signal Processing & Its Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116226396","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}
Pub Date : 2009-03-06DOI: 10.1109/CSPA.2009.5069219
A. A. Azeriee, H. Hashim, R. Jarmin, A. Ahmad
Fishery products are important not only from a nutritional point of view, but also as an item of international trade and foreign exchange earner for a number of countries in the world. Fish are highly perishable, and prone to vast variations in quality due to the method of storage temperature and storage duration. Spoilage is much faster if the fish is not held at chill temperatures [1]. The purpose of this project is to study different method for identifying the freshness of fish. Previous method has been done using Identification of Colour Index where it focused on the fish eyes and gills. The results shown the fish eyes and gills have correlation with the level of freshness. The method that will be used in this experimental approach is using electrode which is applied on the fish muscle and skin. This method is believed to be more accurate in determining the freshness. The results of this study will help to improve the new technologies design in sensing fish freshness.
{"title":"A study on freshness of fish by using fish freshness meter","authors":"A. A. Azeriee, H. Hashim, R. Jarmin, A. Ahmad","doi":"10.1109/CSPA.2009.5069219","DOIUrl":"https://doi.org/10.1109/CSPA.2009.5069219","url":null,"abstract":"Fishery products are important not only from a nutritional point of view, but also as an item of international trade and foreign exchange earner for a number of countries in the world. Fish are highly perishable, and prone to vast variations in quality due to the method of storage temperature and storage duration. Spoilage is much faster if the fish is not held at chill temperatures [1]. The purpose of this project is to study different method for identifying the freshness of fish. Previous method has been done using Identification of Colour Index where it focused on the fish eyes and gills. The results shown the fish eyes and gills have correlation with the level of freshness. The method that will be used in this experimental approach is using electrode which is applied on the fish muscle and skin. This method is believed to be more accurate in determining the freshness. The results of this study will help to improve the new technologies design in sensing fish freshness.","PeriodicalId":338469,"journal":{"name":"2009 5th International Colloquium on Signal Processing & Its Applications","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115327215","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}
Pub Date : 2009-03-06DOI: 10.1109/CSPA.2009.5069225
Jun Wang, Yichun Tang, S. Goto
Transmission of compressed video over error prone channels may result in packet losses or errors, which can significantly degrade the image quality. Aimed this problem, this paper proposes an adaptive concealment order based on well know Boundary matching algorithm [7, 8]. The concealment order is carefully chosen according to a lost MB's priority, which is formulated considering 2 factors, MV (motion vector) distribution in the lost MB's area, and its available neighborhood information. Compared with Chen's work [11], the experiments show our proposal always achieves better performance of video recovery under different packet lost rate channel.
{"title":"MV distribution and neighborhood availability based error concealment order for video stream","authors":"Jun Wang, Yichun Tang, S. Goto","doi":"10.1109/CSPA.2009.5069225","DOIUrl":"https://doi.org/10.1109/CSPA.2009.5069225","url":null,"abstract":"Transmission of compressed video over error prone channels may result in packet losses or errors, which can significantly degrade the image quality. Aimed this problem, this paper proposes an adaptive concealment order based on well know Boundary matching algorithm [7, 8]. The concealment order is carefully chosen according to a lost MB's priority, which is formulated considering 2 factors, MV (motion vector) distribution in the lost MB's area, and its available neighborhood information. Compared with Chen's work [11], the experiments show our proposal always achieves better performance of video recovery under different packet lost rate channel.","PeriodicalId":338469,"journal":{"name":"2009 5th International Colloquium on Signal Processing & Its Applications","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125541174","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}
Pub Date : 2009-03-06DOI: 10.1109/CSPA.2009.5069226
M. Noor, I. Ismail, M. F. Saaid
This paper outlines a bus detection mechanism for the blind in travelling from one place to another. In order to get transportation independently, the blind use auditory touched clues like walking stick or white cane. The limitation of the walking stick is that a blind person must come into close proximity with their surroundings to determine the location of an obstacle. For that basis, various devices have been developed such as the Sonicguide, the Mowat sensor, the Laser cane and the Navbelt [4]. However, these device can only assist the blind at a pedestrian crossing. Therefore, the project is aims to develop a bus detection prototype using Radio Frequency Identification (RFID) for the blind. The paper covers brief idea about the blind and RFID system, review relevant papers and summary of current research. The review of RFID system compare between families of auto-ID technology, the basic principle of RFID, the type of RFID tagging and the antenna characteristic. The summary of current research discussed about the development of prototype, the database system, the output mechanism and integration between hardware and software. Database management will provided. The information such as bus route, final destination and bus number are also provided. This paper also describes the future work intended to be done.
{"title":"Bus detection device for the blind using RFID application","authors":"M. Noor, I. Ismail, M. F. Saaid","doi":"10.1109/CSPA.2009.5069226","DOIUrl":"https://doi.org/10.1109/CSPA.2009.5069226","url":null,"abstract":"This paper outlines a bus detection mechanism for the blind in travelling from one place to another. In order to get transportation independently, the blind use auditory touched clues like walking stick or white cane. The limitation of the walking stick is that a blind person must come into close proximity with their surroundings to determine the location of an obstacle. For that basis, various devices have been developed such as the Sonicguide, the Mowat sensor, the Laser cane and the Navbelt [4]. However, these device can only assist the blind at a pedestrian crossing. Therefore, the project is aims to develop a bus detection prototype using Radio Frequency Identification (RFID) for the blind. The paper covers brief idea about the blind and RFID system, review relevant papers and summary of current research. The review of RFID system compare between families of auto-ID technology, the basic principle of RFID, the type of RFID tagging and the antenna characteristic. The summary of current research discussed about the development of prototype, the database system, the output mechanism and integration between hardware and software. Database management will provided. The information such as bus route, final destination and bus number are also provided. This paper also describes the future work intended to be done.","PeriodicalId":338469,"journal":{"name":"2009 5th International Colloquium on Signal Processing & Its Applications","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116806561","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}
Pub Date : 2009-03-06DOI: 10.1109/CSPA.2009.5069212
A. Bagheri, Saber Ghasembeigi, S. Basiri
Dynamic equations of the biped robots are easily obtained by the Lagrangian method. Because of terrible nonlinearity of these dynamic equations, the actuator's dynamic is employed to linearize these equations. By this way, the heavy nonlinear equations are replaced with a second order linear system which their coefficients are achievable by the various identification methods. Here Least Square method is utilized to determine these second order transfer function's coefficients. Employing a set of linear transfer function for each joint and also considering unstructured uncertainty, an H∞ controller is designed and the Robust Stability and Robust Performance criteria are to be handeled with the μ analysis theory.
{"title":"Robust control frequency analysis of a moving walking bipedal robot","authors":"A. Bagheri, Saber Ghasembeigi, S. Basiri","doi":"10.1109/CSPA.2009.5069212","DOIUrl":"https://doi.org/10.1109/CSPA.2009.5069212","url":null,"abstract":"Dynamic equations of the biped robots are easily obtained by the Lagrangian method. Because of terrible nonlinearity of these dynamic equations, the actuator's dynamic is employed to linearize these equations. By this way, the heavy nonlinear equations are replaced with a second order linear system which their coefficients are achievable by the various identification methods. Here Least Square method is utilized to determine these second order transfer function's coefficients. Employing a set of linear transfer function for each joint and also considering unstructured uncertainty, an H∞ controller is designed and the Robust Stability and Robust Performance criteria are to be handeled with the μ analysis theory.","PeriodicalId":338469,"journal":{"name":"2009 5th International Colloquium on Signal Processing & Its Applications","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127278631","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}
Pub Date : 2009-03-06DOI: 10.1109/CSPA.2009.5069198
R. Rusli, R. Nagarajan, M. Rahim, Z. M. Zain
This paper is on determining a hybrid form of control which has both Fuzzy Logic Control (FLC) and Variable Structure Control (VSC) integrated. This proposed Fuzzy Variable Structure Control (FVSC) approach combines the power of approximate reasoning of FLC with the switching synthesis used in VSC. The FVSC is applied to control and stabilize a micro satellite in space. A model of satellite is used in this study in order to ensure the applications of FVSC in space. The simulation results indicate that the fuzzy logic can be advantageously used to minimize the chattering and improve the time response in the satellite system. MATLAB SIMULINK is extensively employed in this work.
{"title":"Fuzzy Variable Structure Control of dynamical systems with an application to micro satellite stabilization","authors":"R. Rusli, R. Nagarajan, M. Rahim, Z. M. Zain","doi":"10.1109/CSPA.2009.5069198","DOIUrl":"https://doi.org/10.1109/CSPA.2009.5069198","url":null,"abstract":"This paper is on determining a hybrid form of control which has both Fuzzy Logic Control (FLC) and Variable Structure Control (VSC) integrated. This proposed Fuzzy Variable Structure Control (FVSC) approach combines the power of approximate reasoning of FLC with the switching synthesis used in VSC. The FVSC is applied to control and stabilize a micro satellite in space. A model of satellite is used in this study in order to ensure the applications of FVSC in space. The simulation results indicate that the fuzzy logic can be advantageously used to minimize the chattering and improve the time response in the satellite system. MATLAB SIMULINK is extensively employed in this work.","PeriodicalId":338469,"journal":{"name":"2009 5th International Colloquium on Signal Processing & Its Applications","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127221221","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}
Pub Date : 2009-03-06DOI: 10.1109/CSPA.2009.5069263
N. Hamzah, Fahteem Hamamy Anuwar, Z. Zakaria, N. Tahir
In this paper, application of SVM to classify disturbances in power quality is discussed. Power system transient can pose a serious threat to the reliability of power system apparatus and sensitive loads. There are numerous causes of power system transient namely short circuits, capacitor bank switching, switching of large inductive loads that include motors and transformers as well as lightning. Firstly, an IEEE 30 bus system is modeled using the PSCAD software to generate the different type of transient data caused by capacitor switching and lightning. Feature extraction is performed using wavelet technique. Next, the wavelet coefficients specifically the minimum and maximum values of the wavelet energy served as inputs for the SVM for classification purpose. Initial results showed that SVM is capable to classify the transient source with Radial Basis Function (RBF) as the kernel
{"title":"Classification of transient in power system using support vector machine","authors":"N. Hamzah, Fahteem Hamamy Anuwar, Z. Zakaria, N. Tahir","doi":"10.1109/CSPA.2009.5069263","DOIUrl":"https://doi.org/10.1109/CSPA.2009.5069263","url":null,"abstract":"In this paper, application of SVM to classify disturbances in power quality is discussed. Power system transient can pose a serious threat to the reliability of power system apparatus and sensitive loads. There are numerous causes of power system transient namely short circuits, capacitor bank switching, switching of large inductive loads that include motors and transformers as well as lightning. Firstly, an IEEE 30 bus system is modeled using the PSCAD software to generate the different type of transient data caused by capacitor switching and lightning. Feature extraction is performed using wavelet technique. Next, the wavelet coefficients specifically the minimum and maximum values of the wavelet energy served as inputs for the SVM for classification purpose. Initial results showed that SVM is capable to classify the transient source with Radial Basis Function (RBF) as the kernel","PeriodicalId":338469,"journal":{"name":"2009 5th International Colloquium on Signal Processing & Its Applications","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127396093","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}
Pub Date : 2009-03-06DOI: 10.1109/CSPA.2009.5069209
Yiqing Huang, Qin Liu, T. Ikenaga
The latest H.264/AVC standard can provide us superior coding performance. However, the new technique also brings about complexity problem, especially in motion estimation (ME) part. In hardware, the pipeline stage division of H.264 based ME engine degrades many software oriented complexity reduction schemes. In our paper, we propose one VLSI friendly fast ME algorithm. Firstly, pixel difference based adaptive subsampling achieves complexity reduction for homogeneous macroblock (MB). Secondly, a multiple reference frame elimination scheme is introduced to early terminate ME process for static MB. Thirdly, based on the motion feature analysis, the search range is adjusted to remove redundant search points. Experimental results show that, compared with hardware friendly full search algorithm, our proposed algorithm can reduce 71.09% to 95.26%ME time with negligible video quality degradation. Moreover, our fast algorithm can be combined with existing fast motion estimation algorithms such as UMHexagon search for further reduction in complexity and it is friendly to hardware implementation.
{"title":"VLSI oriented fast motion estimation algorithm based on macroblock and motion feature analysis","authors":"Yiqing Huang, Qin Liu, T. Ikenaga","doi":"10.1109/CSPA.2009.5069209","DOIUrl":"https://doi.org/10.1109/CSPA.2009.5069209","url":null,"abstract":"The latest H.264/AVC standard can provide us superior coding performance. However, the new technique also brings about complexity problem, especially in motion estimation (ME) part. In hardware, the pipeline stage division of H.264 based ME engine degrades many software oriented complexity reduction schemes. In our paper, we propose one VLSI friendly fast ME algorithm. Firstly, pixel difference based adaptive subsampling achieves complexity reduction for homogeneous macroblock (MB). Secondly, a multiple reference frame elimination scheme is introduced to early terminate ME process for static MB. Thirdly, based on the motion feature analysis, the search range is adjusted to remove redundant search points. Experimental results show that, compared with hardware friendly full search algorithm, our proposed algorithm can reduce 71.09% to 95.26%ME time with negligible video quality degradation. Moreover, our fast algorithm can be combined with existing fast motion estimation algorithms such as UMHexagon search for further reduction in complexity and it is friendly to hardware implementation.","PeriodicalId":338469,"journal":{"name":"2009 5th International Colloquium on Signal Processing & Its Applications","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126241262","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}
Pub Date : 2009-03-06DOI: 10.1109/CSPA.2009.5069214
Yichun Tang, Jun Wang, S. Goto
As the newest video coding standard, H.264/AVC [1] adopts the high-efficiently predictive coding and variable length entropy coding to achieve high compression efficiency. On the other side, transmission errors become the major problem faced by video broadcasting service providers. Error concealment (EC) [2] here is adopted to handle slices with huge conjunctive corrupted areas inside. Considering Error propagation from corrupted slice to succeeding ones is the key factor affecting the video quality, this paper proposes a novel temporal EC scheme including the bi-direction Motion Vector (MV) retrieval method and an adaptive EC ordering basing on it. Background and motional steady shift part of slice will be given top and second priority, respectively. Combined with our proposed Improved Boundary Matching Algorithm (IBMA) which provides more accurate distortion function, experiments results show that our proposal achieves better performance under different error rate channel, compared with EC algorithm adopted in H.264 reference software [3].
{"title":"Bi-direction Motion Vector retrieval based error concealment scheme for H.264/AVC","authors":"Yichun Tang, Jun Wang, S. Goto","doi":"10.1109/CSPA.2009.5069214","DOIUrl":"https://doi.org/10.1109/CSPA.2009.5069214","url":null,"abstract":"As the newest video coding standard, H.264/AVC [1] adopts the high-efficiently predictive coding and variable length entropy coding to achieve high compression efficiency. On the other side, transmission errors become the major problem faced by video broadcasting service providers. Error concealment (EC) [2] here is adopted to handle slices with huge conjunctive corrupted areas inside. Considering Error propagation from corrupted slice to succeeding ones is the key factor affecting the video quality, this paper proposes a novel temporal EC scheme including the bi-direction Motion Vector (MV) retrieval method and an adaptive EC ordering basing on it. Background and motional steady shift part of slice will be given top and second priority, respectively. Combined with our proposed Improved Boundary Matching Algorithm (IBMA) which provides more accurate distortion function, experiments results show that our proposal achieves better performance under different error rate channel, compared with EC algorithm adopted in H.264 reference software [3].","PeriodicalId":338469,"journal":{"name":"2009 5th International Colloquium on Signal Processing & Its Applications","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122148523","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}
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