Pub Date : 2011-07-18DOI: 10.5220/0003457400340039
W. Proß, M. Otesteanu, F. Quint
In this paper we propose an extension of the Estimation-Decoding algorithm for the decoding of our Data Matrix Code (DMC), which is based on Low-Density-Parity-Check (LDPC) codes and is designed for use in industrial environment. To include possible damages in the channel-model, a Markov-modulated Gaussian channel (MMGC) was chosen to represent everything in between the embossing of a LDPC-based DMC and the camera-based acquisition. The MMGC is based on a Hidden-Markov-Model (HMM) that turns into a two-dimensional model when used in the context of DMCs. The proposed ED2D-algorithm (Estimation-Decoding in two dimensions) is implemented to operate on a 2D-LDPC-Markov factor graph that comprises of a LDPC code's Tanner-graph and a 2D-HMM. For a subsequent comparison between different barcodes in industrial environment, a simulation of typical damages has been implemented. Tests showed a superior decoding behavior of our LDPC-based DMC decoded with the ED2D-decoder over the standard Reed-Solomon-based DMC.
{"title":"Estimation-decoding on LDPC-based 2D-barcodes","authors":"W. Proß, M. Otesteanu, F. Quint","doi":"10.5220/0003457400340039","DOIUrl":"https://doi.org/10.5220/0003457400340039","url":null,"abstract":"In this paper we propose an extension of the Estimation-Decoding algorithm for the decoding of our Data Matrix Code (DMC), which is based on Low-Density-Parity-Check (LDPC) codes and is designed for use in industrial environment. To include possible damages in the channel-model, a Markov-modulated Gaussian channel (MMGC) was chosen to represent everything in between the embossing of a LDPC-based DMC and the camera-based acquisition. The MMGC is based on a Hidden-Markov-Model (HMM) that turns into a two-dimensional model when used in the context of DMCs. The proposed ED2D-algorithm (Estimation-Decoding in two dimensions) is implemented to operate on a 2D-LDPC-Markov factor graph that comprises of a LDPC code's Tanner-graph and a 2D-HMM. For a subsequent comparison between different barcodes in industrial environment, a simulation of typical damages has been implemented. Tests showed a superior decoding behavior of our LDPC-based DMC decoded with the ED2D-decoder over the standard Reed-Solomon-based DMC.","PeriodicalId":103791,"journal":{"name":"Proceedings of the International Conference on Signal Processing and Multimedia Applications","volume":"41 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129880185","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 : 2011-07-18DOI: 10.5220/0003567300520058
O. Siordia, Isaac Martín de Diego, C. Conde, E. Cabello
In this paper, an in-vehicle complaint recording device is presented. The device is divided in independent systems for image and audio data acquisition and storage. The systems, designed to work under in-vehicle complaint devices, use existent in-vehicle wireless architectures for its communication. Several tests of the recording device in a highly realistic truck simulator show the reliability of the developed system to acquire and store driver related data. The acquired data will be used for the development of a valid methodology for the reconstruction and study of traffic accidents.
{"title":"Wireless in-vehicle complaint driver environment recorder","authors":"O. Siordia, Isaac Martín de Diego, C. Conde, E. Cabello","doi":"10.5220/0003567300520058","DOIUrl":"https://doi.org/10.5220/0003567300520058","url":null,"abstract":"In this paper, an in-vehicle complaint recording device is presented. The device is divided in independent systems for image and audio data acquisition and storage. The systems, designed to work under in-vehicle complaint devices, use existent in-vehicle wireless architectures for its communication. Several tests of the recording device in a highly realistic truck simulator show the reliability of the developed system to acquire and store driver related data. The acquired data will be used for the development of a valid methodology for the reconstruction and study of traffic accidents.","PeriodicalId":103791,"journal":{"name":"Proceedings of the International Conference on Signal Processing and Multimedia Applications","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124561579","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 : 2011-07-18DOI: 10.5220/0003456300270033
A. Kupryjanow, A. Czyżewski
An algorithm for non-uniform real-time speech stretching is presented. It provides a combination of typical SOLA algorithm (Synchronous Overlap and Add) with the vowels, consonants and silence detectors. Based on the information about the content and the estimated value of the rate of speech (ROS), the algorithm adapts the scaling factor value. The ability of real-time speech stretching and the resultant quality of voice were analysed. Subjective tests were performed in order to compare the quality of the proposed method with the output of the standard SOLA algorithm. Accuracy of the ROS estimation was assessed to prove its robustness.
{"title":"A non-uniform real-time speech time-scale stretching method","authors":"A. Kupryjanow, A. Czyżewski","doi":"10.5220/0003456300270033","DOIUrl":"https://doi.org/10.5220/0003456300270033","url":null,"abstract":"An algorithm for non-uniform real-time speech stretching is presented. It provides a combination of typical SOLA algorithm (Synchronous Overlap and Add) with the vowels, consonants and silence detectors. Based on the information about the content and the estimated value of the rate of speech (ROS), the algorithm adapts the scaling factor value. The ability of real-time speech stretching and the resultant quality of voice were analysed. Subjective tests were performed in order to compare the quality of the proposed method with the output of the standard SOLA algorithm. Accuracy of the ROS estimation was assessed to prove its robustness.","PeriodicalId":103791,"journal":{"name":"Proceedings of the International Conference on Signal Processing and Multimedia Applications","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122709416","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 : 2011-07-18DOI: 10.5220/0003651401930199
Stefano Baldan, L. A. Ludovico, D. Mauro
This paper deals with the problem of managing multiple multimedia streams in a Web environment. Multimedia types to support are pure audio, video with no sound, and audio/video. Data streams refer to the same event or performance, consequently they both have and should maintain mutual synchronization. Besides, a Web player should be able to play different multimedia streams simultaneously, as well as to switch from one to another in real time. The clarifying example of a music piece encoded in IEEE 1599 format will be presented as a case study.
{"title":"Managing multiple media streams in HTML5: The IEEE 1599-2008 case study","authors":"Stefano Baldan, L. A. Ludovico, D. Mauro","doi":"10.5220/0003651401930199","DOIUrl":"https://doi.org/10.5220/0003651401930199","url":null,"abstract":"This paper deals with the problem of managing multiple multimedia streams in a Web environment. Multimedia types to support are pure audio, video with no sound, and audio/video. Data streams refer to the same event or performance, consequently they both have and should maintain mutual synchronization. Besides, a Web player should be able to play different multimedia streams simultaneously, as well as to switch from one to another in real time. The clarifying example of a music piece encoded in IEEE 1599 format will be presented as a case study.","PeriodicalId":103791,"journal":{"name":"Proceedings of the International Conference on Signal Processing and Multimedia Applications","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115583542","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 : 2011-07-18DOI: 10.5220/0003518500790084
M. Domínguez-Morales, Elena Cerezuela-Escudero, A. Jiménez-Fernandez, R. Paz-Vicente, Juan Luis Font-Calvo, P. Iñigo-Blasco, A. Linares-Barranco, G. Jiménez-Moreno
Image processing in digital computer systems usually considers the visual information as a sequence of frames. These frames are from cameras that capture reality for a short period of time. They are renewed and transmitted at a rate of 25–30 fps (typical real-time scenario). Digital video processing has to process each frame in order to obtain a filter result or detect a feature on the input. In stereo vision, existing algorithms use frames from two digital cameras and process them pixel by pixel until it is found a pattern match in a section of both stereo frames. Spike-based processing is a relatively new approach that implements the processing by manipulating spikes one by one at the time they are transmitted, like a human brain. The mammal nervous system is able to solve much more complex problems, such as visual recognition by manipulating neuron's spikes. The spike-based philosophy for visual information processing based on the neuro-inspired Address-Event-Representation (AER) is achieving nowadays very high performances. In this work we study the existing digital stereo matching algorithms and how do they work. After that, we propose an AER stereo matching algorithm using some of the principles shown in digital stereo methods.
{"title":"Image matching algorithms in stereo vision using address-event-representation: A theoretical study and evaluation of the different algorithms","authors":"M. Domínguez-Morales, Elena Cerezuela-Escudero, A. Jiménez-Fernandez, R. Paz-Vicente, Juan Luis Font-Calvo, P. Iñigo-Blasco, A. Linares-Barranco, G. Jiménez-Moreno","doi":"10.5220/0003518500790084","DOIUrl":"https://doi.org/10.5220/0003518500790084","url":null,"abstract":"Image processing in digital computer systems usually considers the visual information as a sequence of frames. These frames are from cameras that capture reality for a short period of time. They are renewed and transmitted at a rate of 25–30 fps (typical real-time scenario). Digital video processing has to process each frame in order to obtain a filter result or detect a feature on the input. In stereo vision, existing algorithms use frames from two digital cameras and process them pixel by pixel until it is found a pattern match in a section of both stereo frames. Spike-based processing is a relatively new approach that implements the processing by manipulating spikes one by one at the time they are transmitted, like a human brain. The mammal nervous system is able to solve much more complex problems, such as visual recognition by manipulating neuron's spikes. The spike-based philosophy for visual information processing based on the neuro-inspired Address-Event-Representation (AER) is achieving nowadays very high performances. In this work we study the existing digital stereo matching algorithms and how do they work. After that, we propose an AER stereo matching algorithm using some of the principles shown in digital stereo methods.","PeriodicalId":103791,"journal":{"name":"Proceedings of the International Conference on Signal Processing and Multimedia Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130827799","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 : 2011-07-18DOI: 10.5220/0003491601490158
Lei Wu, Nenghai Yu, J. Liu, Mingjing Li
This paper presents a latent topic visual language model to handle variation problem in object categorization. Variations including different views, styles, poses, etc., have greatly affected the spatial arrangement and distribution of visual features, on which previous categorization models largely depend. Taking the object variations as hidden topics within each category, the proposed model explores the relationship between object variations and visual feature arrangement in the traditional visual language modeling process. With this improvement, the accuracy of object categorization is further boosted. Experiments on Caltech 101 dataset have shown that this model makes sense and is effective.
{"title":"Latent topic visual language model for object categorization","authors":"Lei Wu, Nenghai Yu, J. Liu, Mingjing Li","doi":"10.5220/0003491601490158","DOIUrl":"https://doi.org/10.5220/0003491601490158","url":null,"abstract":"This paper presents a latent topic visual language model to handle variation problem in object categorization. Variations including different views, styles, poses, etc., have greatly affected the spatial arrangement and distribution of visual features, on which previous categorization models largely depend. Taking the object variations as hidden topics within each category, the proposed model explores the relationship between object variations and visual feature arrangement in the traditional visual language modeling process. With this improvement, the accuracy of object categorization is further boosted. Experiments on Caltech 101 dataset have shown that this model makes sense and is effective.","PeriodicalId":103791,"journal":{"name":"Proceedings of the International Conference on Signal Processing and Multimedia Applications","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114172186","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 : 2011-07-18DOI: 10.5220/0003481200190022
José Manuel Fornés Rumbao, F. R. Rubio
In the last times, the mobile terminals have experienced an accelerated technological development. This evolution has provided numerous advances in presentation and interactivity in general and it has given rise to the generation of numerous applications for it. Following this line; this article shows how to incorporate on mobile terminals a simple interaction with the environment across the technological successor of the bar codes: the two-dimensional codes. We will use three basic elements-camera quality, growth in data traffic and increased bandwidth in mobile phones-to create a platform that provides to the user an easy and useful way of obtaining information multimedia that improves his relation with the environment. We will look for a complete and global development of the system, that is, the generation of the two-dimensional code; his interaction with the platform and final obtaining of the information in the terminal.
{"title":"Two-dimensional codes on mobile devices and the development of the platform","authors":"José Manuel Fornés Rumbao, F. R. Rubio","doi":"10.5220/0003481200190022","DOIUrl":"https://doi.org/10.5220/0003481200190022","url":null,"abstract":"In the last times, the mobile terminals have experienced an accelerated technological development. This evolution has provided numerous advances in presentation and interactivity in general and it has given rise to the generation of numerous applications for it. Following this line; this article shows how to incorporate on mobile terminals a simple interaction with the environment across the technological successor of the bar codes: the two-dimensional codes. We will use three basic elements-camera quality, growth in data traffic and increased bandwidth in mobile phones-to create a platform that provides to the user an easy and useful way of obtaining information multimedia that improves his relation with the environment. We will look for a complete and global development of the system, that is, the generation of the two-dimensional code; his interaction with the platform and final obtaining of the information in the terminal.","PeriodicalId":103791,"journal":{"name":"Proceedings of the International Conference on Signal Processing and Multimedia Applications","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121668337","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 : 2011-07-18DOI: 10.5220/0003511800610066
Shahrouz Yousefi, Farid Abedan Kondori, Haibo Li
In this paper we consider the task of 3D photo visualization using a single monocular image. The main idea is to use single photos taken by capturing devices such as ordinary cameras, mobile phones, tablet PCs etc. and visualize them in 3D on normal displays. Supervised learning approach is hired to retrieve depth information from single images. This algorithm is based on the hierarchical multi-scale Markov Random Field (MRF) which models the depth based on the multi-scale global and local features and relation between them in a monocular image. Consequently, the estimated depth image is used to allocate the specified depth parameters for each pixel in the 3D map. Accordingly, the multi-level depth adjustments and coding for color anaglyphs is performed. Our system receives a single 2D image as input and provides a anaglyph coded 3D image in output. Depending on the coding technology the special low-cost anaglyph glasses for viewers will be used.
{"title":"3D visualization of single images using patch level depth","authors":"Shahrouz Yousefi, Farid Abedan Kondori, Haibo Li","doi":"10.5220/0003511800610066","DOIUrl":"https://doi.org/10.5220/0003511800610066","url":null,"abstract":"In this paper we consider the task of 3D photo visualization using a single monocular image. The main idea is to use single photos taken by capturing devices such as ordinary cameras, mobile phones, tablet PCs etc. and visualize them in 3D on normal displays. Supervised learning approach is hired to retrieve depth information from single images. This algorithm is based on the hierarchical multi-scale Markov Random Field (MRF) which models the depth based on the multi-scale global and local features and relation between them in a monocular image. Consequently, the estimated depth image is used to allocate the specified depth parameters for each pixel in the 3D map. Accordingly, the multi-level depth adjustments and coding for color anaglyphs is performed. Our system receives a single 2D image as input and provides a anaglyph coded 3D image in output. Depending on the coding technology the special low-cost anaglyph glasses for viewers will be used.","PeriodicalId":103791,"journal":{"name":"Proceedings of the International Conference on Signal Processing and Multimedia Applications","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126562324","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 : 2011-07-18DOI: 10.5220/0003526300970103
C. Yaacoub, J. Farah, Chadi Jabroun
This work tackles the problem of side information generation for the case of large-duration GOPs in distributed video coding. Based on a previously developed technique for side-information enhancement, we develop a genetic algorithm particularly designed for large GOPs, taking into account the GOP size, the additional bitrate incurred by encoding hash information, as well as the decoding complexity. The proposed algorithm makes use of different interpolation methods available in the literature in a fusion-based approach. A significant gain in the average PSNR that can reach 2 dB is observed with respect to the best performing interpolation technique, while the algorithm is run for no more than 18% of the total number of blocks in a given video sequence. On the other hand, while the encoding complexity is a main concern in distributed video coding, the proposed solution incurs no additional complexity at the encoder side in the case of hash-based Wyner-Ziv video coding.
{"title":"A genetic approach for improving the side information in Wyner-Ziv video coding with long duration GOP","authors":"C. Yaacoub, J. Farah, Chadi Jabroun","doi":"10.5220/0003526300970103","DOIUrl":"https://doi.org/10.5220/0003526300970103","url":null,"abstract":"This work tackles the problem of side information generation for the case of large-duration GOPs in distributed video coding. Based on a previously developed technique for side-information enhancement, we develop a genetic algorithm particularly designed for large GOPs, taking into account the GOP size, the additional bitrate incurred by encoding hash information, as well as the decoding complexity. The proposed algorithm makes use of different interpolation methods available in the literature in a fusion-based approach. A significant gain in the average PSNR that can reach 2 dB is observed with respect to the best performing interpolation technique, while the algorithm is run for no more than 18% of the total number of blocks in a given video sequence. On the other hand, while the encoding complexity is a main concern in distributed video coding, the proposed solution incurs no additional complexity at the encoder side in the case of hash-based Wyner-Ziv video coding.","PeriodicalId":103791,"journal":{"name":"Proceedings of the International Conference on Signal Processing and Multimedia Applications","volume":"156-157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117179153","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 : 2011-07-18DOI: 10.5220/0003521701310134
F. Perez-Peña, Arturo Morgado Estévez, R. Montero-Gonzalez, A. Linares-Barranco, G. Jiménez-Moreno
Nowadays we live in very industrialization world that turns worried about surveillance and with lots of occupational hazards. The aim of this paper is to supply a surveillance video system to use at ultra fast industrial environments. We present an exhaustive timing analysis and comparative between two different Address Event Representation (AER) retinas, one with 64×64 pixel and the other one with 128×128 pixel in order to know the limits of them. Both are spike based image sensors that mimic the human retina and designed and manufactured by Delbruck's lab. Two different scenarios are presented in order to achieve the maximum frequency of light changes for a pixel sensor and the maximum frequency of requested pixel addresses on the AER output. Results obtained are 100 Hz and 1.88 MHz at each case for the 64×64 retina and peaks of 1.3 KHz and 8.33 MHz for the 128×128 retina. We have tested the upper spin limit of an ultra fast industrial machine and found it to be approximately 6000 rpm for the first retina and no limit achieve at top rpm for the second retina. It has been tested that in cases with high light contrast no AER data is lost.
{"title":"Video surveillance at an industrial environment using an address event vision sensor: Comparative between two different video sensor based on a bioinspired retina","authors":"F. Perez-Peña, Arturo Morgado Estévez, R. Montero-Gonzalez, A. Linares-Barranco, G. Jiménez-Moreno","doi":"10.5220/0003521701310134","DOIUrl":"https://doi.org/10.5220/0003521701310134","url":null,"abstract":"Nowadays we live in very industrialization world that turns worried about surveillance and with lots of occupational hazards. The aim of this paper is to supply a surveillance video system to use at ultra fast industrial environments. We present an exhaustive timing analysis and comparative between two different Address Event Representation (AER) retinas, one with 64×64 pixel and the other one with 128×128 pixel in order to know the limits of them. Both are spike based image sensors that mimic the human retina and designed and manufactured by Delbruck's lab. Two different scenarios are presented in order to achieve the maximum frequency of light changes for a pixel sensor and the maximum frequency of requested pixel addresses on the AER output. Results obtained are 100 Hz and 1.88 MHz at each case for the 64×64 retina and peaks of 1.3 KHz and 8.33 MHz for the 128×128 retina. We have tested the upper spin limit of an ultra fast industrial machine and found it to be approximately 6000 rpm for the first retina and no limit achieve at top rpm for the second retina. It has been tested that in cases with high light contrast no AER data is lost.","PeriodicalId":103791,"journal":{"name":"Proceedings of the International Conference on Signal Processing and Multimedia Applications","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124433921","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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