Pub Date : 2013-12-16DOI: 10.1109/CISP.2013.6743926
O. Yakut, H. Eren, M. Kaya, E. Oksuztepe, M. Polat, Z. Omac, D. Bekler, H. Kurum, M. Celenk
In the urban areas, drivers may need to step over obstacles for safety caution. At this stage, drivers have to slow down and move at low speed while passing over curbs. If there is an obstacle in front or back of the car, driver should step on the gas to speed up the car from zero to cautionary speed to pass over it. The obstacle in question could be curbs, bumper or rim over urban areas. In this scenario, we consider a particular obstacle, namely, a curb. Hence, the driver has to climb over the curb by stepping on the gas, which, in turn, creates a critical driving situation emerging risky move contemplating the car driven or pedestrians as well as obstacles around the car. In this work, depending on response time of driver, while car crosses over obstacle, lateral distance of car taken unintentionally have been estimated. Considering this distance, emerging risk by the situation has been investigated along with influence of height on risk severity experimentation. Relationship among response time of driver, obstacle height and unintentional moving backward distance is determined and presented as a parametric response or outcome function. The study is extended further for modeling unintentional driving behavior in passing over obstacle risk assessment. Subsequently, the undertaken research has enabled us to deduce compensation between the driver response, steep level and geometry of the curb. Furthermore, we give an assessment for estimating the risk causing of the driver response in passing over curb.
{"title":"Dynamic risk assesment for driver response in passing over obstacles","authors":"O. Yakut, H. Eren, M. Kaya, E. Oksuztepe, M. Polat, Z. Omac, D. Bekler, H. Kurum, M. Celenk","doi":"10.1109/CISP.2013.6743926","DOIUrl":"https://doi.org/10.1109/CISP.2013.6743926","url":null,"abstract":"In the urban areas, drivers may need to step over obstacles for safety caution. At this stage, drivers have to slow down and move at low speed while passing over curbs. If there is an obstacle in front or back of the car, driver should step on the gas to speed up the car from zero to cautionary speed to pass over it. The obstacle in question could be curbs, bumper or rim over urban areas. In this scenario, we consider a particular obstacle, namely, a curb. Hence, the driver has to climb over the curb by stepping on the gas, which, in turn, creates a critical driving situation emerging risky move contemplating the car driven or pedestrians as well as obstacles around the car. In this work, depending on response time of driver, while car crosses over obstacle, lateral distance of car taken unintentionally have been estimated. Considering this distance, emerging risk by the situation has been investigated along with influence of height on risk severity experimentation. Relationship among response time of driver, obstacle height and unintentional moving backward distance is determined and presented as a parametric response or outcome function. The study is extended further for modeling unintentional driving behavior in passing over obstacle risk assessment. Subsequently, the undertaken research has enabled us to deduce compensation between the driver response, steep level and geometry of the curb. Furthermore, we give an assessment for estimating the risk causing of the driver response in passing over curb.","PeriodicalId":442320,"journal":{"name":"2013 6th International Congress on Image and Signal Processing (CISP)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126903027","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 : 2013-12-01DOI: 10.1109/CISP.2013.6745233
Xue Qin, Bin Guo, Zhijun Wang, Xiaoyuan Yan
Power control is one of the key technologies in cognitive radio network. This article integrates game element into power control algorithm in cognitive radio. On the basis of traditional model, an improved cost function is presented. Combined with game theory, the existence and uniqueness of Nash equilibrium solution of the game model is proved. Simulation results suggest that the convergence of the proposed game algorithm based on new cost function is superior to the traditional algorithm, the equity of the system is also considered in a certain degree.
{"title":"Power control based on game theory in cognitive radio","authors":"Xue Qin, Bin Guo, Zhijun Wang, Xiaoyuan Yan","doi":"10.1109/CISP.2013.6745233","DOIUrl":"https://doi.org/10.1109/CISP.2013.6745233","url":null,"abstract":"Power control is one of the key technologies in cognitive radio network. This article integrates game element into power control algorithm in cognitive radio. On the basis of traditional model, an improved cost function is presented. Combined with game theory, the existence and uniqueness of Nash equilibrium solution of the game model is proved. Simulation results suggest that the convergence of the proposed game algorithm based on new cost function is superior to the traditional algorithm, the equity of the system is also considered in a certain degree.","PeriodicalId":442320,"journal":{"name":"2013 6th International Congress on Image and Signal Processing (CISP)","volume":"350 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115283912","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 : 2013-12-01DOI: 10.1109/CISP.2013.6745267
Cong Ma, Pingping Xu, Minhong Shang
For face recognition, we consider the problem of automatically recognizing human faces from frontal views with varying facial expression and illumination circumstance, as well as noise. In this paper, a new algorithm is proposed, which avoids the crucial issue of feature extraction in conventional face recognition. Firstly, we use the gradient projection method to improve the performance of sparse representation classification (SRC). And then, a new algorithm dubbed classified gradient projection for sparse representation (CGPSR) is proposed, which utilizes the classification information to enhance the performance for recognizing images with noise. Simulation results demonstrate that the proposed CGPSR algorithm outperforms the previously proposed SRC-based orthogonal matching pursuit (OMP) and has a good potential in the robustness to noise.
{"title":"Face recognition via gradient projection for sparse representation","authors":"Cong Ma, Pingping Xu, Minhong Shang","doi":"10.1109/CISP.2013.6745267","DOIUrl":"https://doi.org/10.1109/CISP.2013.6745267","url":null,"abstract":"For face recognition, we consider the problem of automatically recognizing human faces from frontal views with varying facial expression and illumination circumstance, as well as noise. In this paper, a new algorithm is proposed, which avoids the crucial issue of feature extraction in conventional face recognition. Firstly, we use the gradient projection method to improve the performance of sparse representation classification (SRC). And then, a new algorithm dubbed classified gradient projection for sparse representation (CGPSR) is proposed, which utilizes the classification information to enhance the performance for recognizing images with noise. Simulation results demonstrate that the proposed CGPSR algorithm outperforms the previously proposed SRC-based orthogonal matching pursuit (OMP) and has a good potential in the robustness to noise.","PeriodicalId":442320,"journal":{"name":"2013 6th International Congress on Image and Signal Processing (CISP)","volume":"409 16","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120892172","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 : 2013-12-01DOI: 10.1109/CISP.2013.6743916
Kai Wan, Yiqun Zhu
The Modulated Filter-Banks (MFB) has been adopted in communication standards because of its improved windowing function against Fast Fourier Transform (FFT) based Orthogonal Frequency Division Multiplexing (OFDM). It has shown better resiliency to Inter-Symbol Interference (ISI), Inter-Carrier Interference (ICI), Narrow Band Interference (NBI), and Frequency Selective Fading. The recently adopted MFB in industrial standards is called Perfect Reconstructed Cosine Modulated Filter-Banks (PR-CMFB). There are three types of structure for its implementation, Extended Lapped Transform (ELT), Lattice structure, and Polyphase structure. The ELT defeats the Polyphase and Lattice structures because it is suitable for Very Large Scale Integrated-Circuit (VLSI) implementation. However, there is no difference in computational complexity between them. This paper optimizes the ELT structure to bring out its potential in the VLSI implementation. The proposed ELT reduces the required number of multipliers by half. The implementation on Field Programmable Gate Array (FPGA) is done to approve that. The simulation results show the proposed ELT has doubled throughput and one thirds of logic elements (LEs) are reserved when comparing to the conventional ELT.
{"title":"Optimized extended lapped transform and novel FPGA implementation","authors":"Kai Wan, Yiqun Zhu","doi":"10.1109/CISP.2013.6743916","DOIUrl":"https://doi.org/10.1109/CISP.2013.6743916","url":null,"abstract":"The Modulated Filter-Banks (MFB) has been adopted in communication standards because of its improved windowing function against Fast Fourier Transform (FFT) based Orthogonal Frequency Division Multiplexing (OFDM). It has shown better resiliency to Inter-Symbol Interference (ISI), Inter-Carrier Interference (ICI), Narrow Band Interference (NBI), and Frequency Selective Fading. The recently adopted MFB in industrial standards is called Perfect Reconstructed Cosine Modulated Filter-Banks (PR-CMFB). There are three types of structure for its implementation, Extended Lapped Transform (ELT), Lattice structure, and Polyphase structure. The ELT defeats the Polyphase and Lattice structures because it is suitable for Very Large Scale Integrated-Circuit (VLSI) implementation. However, there is no difference in computational complexity between them. This paper optimizes the ELT structure to bring out its potential in the VLSI implementation. The proposed ELT reduces the required number of multipliers by half. The implementation on Field Programmable Gate Array (FPGA) is done to approve that. The simulation results show the proposed ELT has doubled throughput and one thirds of logic elements (LEs) are reserved when comparing to the conventional ELT.","PeriodicalId":442320,"journal":{"name":"2013 6th International Congress on Image and Signal Processing (CISP)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127506175","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 : 2013-12-01DOI: 10.1109/CISP.2013.6745222
Sheng Zhou, Xiaochun Wang, Jianjun Ji, Yanqun Wang
To design a Fast Fourier Transform (FFT) processor to meet the needs for high-speed and real-time signal processing. A 1024-point, 32-bit, fixed, complex FFT processor is designed based on a field programmable gate array (FPGA) by using the radix-2 decimation in frequency (DIF) algorithm and the pipeline structure in the butterfly module and the ping-pone operation in data storage unit. When the primary clock is 100 MHz, the 1024-point FFT calculation takes about 62.95 us. The processor is fast enough for processing the high-speed and real time signals. The result provides reference values that theoretical study of the FFT algorithm can be applied into the adaptive dynamic filter of an ultrasonic diagnostic system and an ultrasonic Doppler flow measurement system.
{"title":"Design and implementation of a 1024-point high-speed FFT processor based on the FPGA","authors":"Sheng Zhou, Xiaochun Wang, Jianjun Ji, Yanqun Wang","doi":"10.1109/CISP.2013.6745222","DOIUrl":"https://doi.org/10.1109/CISP.2013.6745222","url":null,"abstract":"To design a Fast Fourier Transform (FFT) processor to meet the needs for high-speed and real-time signal processing. A 1024-point, 32-bit, fixed, complex FFT processor is designed based on a field programmable gate array (FPGA) by using the radix-2 decimation in frequency (DIF) algorithm and the pipeline structure in the butterfly module and the ping-pone operation in data storage unit. When the primary clock is 100 MHz, the 1024-point FFT calculation takes about 62.95 us. The processor is fast enough for processing the high-speed and real time signals. The result provides reference values that theoretical study of the FFT algorithm can be applied into the adaptive dynamic filter of an ultrasonic diagnostic system and an ultrasonic Doppler flow measurement system.","PeriodicalId":442320,"journal":{"name":"2013 6th International Congress on Image and Signal Processing (CISP)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124867841","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 : 2013-12-01DOI: 10.1109/CISP.2013.6744049
Linglin Wu, Xiaoyu Wu, Yiming Guo, Lei Yang, Yao Lu
We present a multi-feature based object extraction algorithm in this paper. Cutting in from the angle of multi-feature, this algorithm combines the high-efficient and good performance Graph Cut framework. We add foreground shape information and motion estimation as a compensation of the instability of using single color information.
{"title":"Multi-feature-based video object extraction","authors":"Linglin Wu, Xiaoyu Wu, Yiming Guo, Lei Yang, Yao Lu","doi":"10.1109/CISP.2013.6744049","DOIUrl":"https://doi.org/10.1109/CISP.2013.6744049","url":null,"abstract":"We present a multi-feature based object extraction algorithm in this paper. Cutting in from the angle of multi-feature, this algorithm combines the high-efficient and good performance Graph Cut framework. We add foreground shape information and motion estimation as a compensation of the instability of using single color information.","PeriodicalId":442320,"journal":{"name":"2013 6th International Congress on Image and Signal Processing (CISP)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125836995","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 : 2013-12-01DOI: 10.1109/CISP.2013.6745299
Yi Wan
The classification of Chinese aged liquor has always been a difficult problem in liquor-making industry in China. “Aged liquor” is the quality mark and business policy-making of enterprises to reap economic benefit.Chinese aged liquor can be classification or graded by the micrographs. Micrographs of Chinese aged liquor show floccules, stick and granule of variant shape and size. Different aged liquor have variant microstructure and micrographs, we study the classification of Chinese aged liquor based on the micrographs. Shape and structure of age liquor's particles in microstructure is the most important feature for recognition and classification. So we introduce a feature extraction method which can describe the structure and region shape of micrograph efficiently. First, the micrographs are enhanced using total variation denoise method, and segmented using relative entropy threshold method. Then features are extracted using proposed method in the paper based on area, perimeter and traditional shape feature. Eight kind's total 26 features are selected. Finally, Chinese aged liquor classification system based on micrograph using combination of shape and structure features and Back-Propagation neural network have been presented. We compare the recognition results for different choices of features (traditional shape features or proposed features). Such method is preferred for the classification of age liquor and it has the advantages including rapid and precise measurement, The experimental results show that the better classification rate have been achieved using the combinational features proposed in this paper.
{"title":"Chinese aged liquor classification system using image combinational features","authors":"Yi Wan","doi":"10.1109/CISP.2013.6745299","DOIUrl":"https://doi.org/10.1109/CISP.2013.6745299","url":null,"abstract":"The classification of Chinese aged liquor has always been a difficult problem in liquor-making industry in China. “Aged liquor” is the quality mark and business policy-making of enterprises to reap economic benefit.Chinese aged liquor can be classification or graded by the micrographs. Micrographs of Chinese aged liquor show floccules, stick and granule of variant shape and size. Different aged liquor have variant microstructure and micrographs, we study the classification of Chinese aged liquor based on the micrographs. Shape and structure of age liquor's particles in microstructure is the most important feature for recognition and classification. So we introduce a feature extraction method which can describe the structure and region shape of micrograph efficiently. First, the micrographs are enhanced using total variation denoise method, and segmented using relative entropy threshold method. Then features are extracted using proposed method in the paper based on area, perimeter and traditional shape feature. Eight kind's total 26 features are selected. Finally, Chinese aged liquor classification system based on micrograph using combination of shape and structure features and Back-Propagation neural network have been presented. We compare the recognition results for different choices of features (traditional shape features or proposed features). Such method is preferred for the classification of age liquor and it has the advantages including rapid and precise measurement, The experimental results show that the better classification rate have been achieved using the combinational features proposed in this paper.","PeriodicalId":442320,"journal":{"name":"2013 6th International Congress on Image and Signal Processing (CISP)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123727014","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 : 2013-12-01DOI: 10.1109/CISP.2013.6745294
Xinnan Fan, Peng Wu, J. Ni, P. Shi
The uneven illumination distribution in underwater visual inspection will lead to the difficulty of extracting texture features. The underwater image illumination balance while keeping the texture details has been one of the key issues in underwater visual inspection. Aimed at this problem, a novel illumination balance algorithm based on improved affine shadow formation model is proposed in this study. In the proposed approach, the linear spatial filter is used to obtain the light intensity distribution of an image, and the original image is divided into a series of small strips of pixels based on the light intensity distribution. Then the illumination balance of the image is carried out based on an improved affine shadow formation model. The experimental results show that the proposed approach can deal with the uneven illumination problem in underwater image, and keep the texture details effectively, which is very important for the subsequent processing and analysis for underwater images.
{"title":"An illumination balance algorithm based on improved affine shadow formation model for underwater image","authors":"Xinnan Fan, Peng Wu, J. Ni, P. Shi","doi":"10.1109/CISP.2013.6745294","DOIUrl":"https://doi.org/10.1109/CISP.2013.6745294","url":null,"abstract":"The uneven illumination distribution in underwater visual inspection will lead to the difficulty of extracting texture features. The underwater image illumination balance while keeping the texture details has been one of the key issues in underwater visual inspection. Aimed at this problem, a novel illumination balance algorithm based on improved affine shadow formation model is proposed in this study. In the proposed approach, the linear spatial filter is used to obtain the light intensity distribution of an image, and the original image is divided into a series of small strips of pixels based on the light intensity distribution. Then the illumination balance of the image is carried out based on an improved affine shadow formation model. The experimental results show that the proposed approach can deal with the uneven illumination problem in underwater image, and keep the texture details effectively, which is very important for the subsequent processing and analysis for underwater images.","PeriodicalId":442320,"journal":{"name":"2013 6th International Congress on Image and Signal Processing (CISP)","volume":"392 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125319834","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 : 2013-12-01DOI: 10.1109/CISP.2013.6745274
Huan Liu, Jianxiong Zhou, Q. Fu
The forward-looking imaging problem of synthetic aperture radar (SAR) can be resolved by adopting the bistatic configuration. A bistatic configuration with a stationary transmitter and a forward-looking receiver is introduced and the two-dimensional spectrum is derived, and then an improved nonlinear chirp scaling algorithm is used to focus the data. The imaging quality is compared with the traditional nonlinear chirp scaling algorithm; the simulation results verify the 2D imaging ability of the proposed method.
{"title":"One-stationary Bistatic forward-looking SAR imaging based on improved nonlinear chirp scaling algorithm","authors":"Huan Liu, Jianxiong Zhou, Q. Fu","doi":"10.1109/CISP.2013.6745274","DOIUrl":"https://doi.org/10.1109/CISP.2013.6745274","url":null,"abstract":"The forward-looking imaging problem of synthetic aperture radar (SAR) can be resolved by adopting the bistatic configuration. A bistatic configuration with a stationary transmitter and a forward-looking receiver is introduced and the two-dimensional spectrum is derived, and then an improved nonlinear chirp scaling algorithm is used to focus the data. The imaging quality is compared with the traditional nonlinear chirp scaling algorithm; the simulation results verify the 2D imaging ability of the proposed method.","PeriodicalId":442320,"journal":{"name":"2013 6th International Congress on Image and Signal Processing (CISP)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126699260","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 : 2013-12-01DOI: 10.1109/CISP.2013.6743929
W. Xie, Guolin Zhao, Yinbo Shao, Gang Deng
Airborne fire-control radar system is characterized by its forward looking antenna and low pulse repetition frequency (LPRF) mode, which induce that the Doppler frequency of ground clutter changes with range and is ambiguous seriously. A moving target detection scheme combining interferometer cancellation technique with adaptive moving target indication (AMTI) is presented in this paper. The results show that it is effective to ground moving target detection for airborne fire-control radar.
{"title":"Ground moving target detection technique for airborne fire-control radar","authors":"W. Xie, Guolin Zhao, Yinbo Shao, Gang Deng","doi":"10.1109/CISP.2013.6743929","DOIUrl":"https://doi.org/10.1109/CISP.2013.6743929","url":null,"abstract":"Airborne fire-control radar system is characterized by its forward looking antenna and low pulse repetition frequency (LPRF) mode, which induce that the Doppler frequency of ground clutter changes with range and is ambiguous seriously. A moving target detection scheme combining interferometer cancellation technique with adaptive moving target indication (AMTI) is presented in this paper. The results show that it is effective to ground moving target detection for airborne fire-control radar.","PeriodicalId":442320,"journal":{"name":"2013 6th International Congress on Image and Signal Processing (CISP)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127043140","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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