Pub Date : 2005-12-27DOI: 10.1109/ICVES.2005.1563661
Situ Wuchao, Huang Qian, Wu Yuan
We make use of a type of voting diffusion model for casting image processing. This model is based on an anisotropic diffusion equation driven by a diffusion tensor, whose structure depends on the coupled time-delay regularization of a matrix. The diffusion tensor determines the directions of the diffusion as well as the speed in these directions. Experimental results show that this model is superior to the PM model and other methods based on classical edge detection in processing the casting images without affecting its interesting features. Namely, it has better preservation of the flaws.
{"title":"A type of voting diffusion model and its application in defect detection in aluminum castings","authors":"Situ Wuchao, Huang Qian, Wu Yuan","doi":"10.1109/ICVES.2005.1563661","DOIUrl":"https://doi.org/10.1109/ICVES.2005.1563661","url":null,"abstract":"We make use of a type of voting diffusion model for casting image processing. This model is based on an anisotropic diffusion equation driven by a diffusion tensor, whose structure depends on the coupled time-delay regularization of a matrix. The diffusion tensor determines the directions of the diffusion as well as the speed in these directions. Experimental results show that this model is superior to the PM model and other methods based on classical edge detection in processing the casting images without affecting its interesting features. Namely, it has better preservation of the flaws.","PeriodicalId":443433,"journal":{"name":"IEEE International Conference on Vehicular Electronics and Safety, 2005.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127537879","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 : 2005-12-27DOI: 10.1109/ICVES.2005.1563667
Feiyue Wang
Summary form only given. The history of agent research with transportation problems should be richer and better in the future, and should go further from air to surface and vehicles to houses. As a matter of fact, the domain of traffic and transportation management is well suited to an agent-based approach because of it geographically distributed nature and its periodically busy-idle operating characteristics. The future of intelligent transportation systems (ITS) should full of intelligent and autonomous agents that travel among traffic control centers, road intersections, highways, streets, vehicles, houses, offices, malls, via Internet, wireless, and ad hoc networks, collect right information at right times and make smart decisions so that our transportation systems would be eventually "intelligent". Recently, more studies have emerged on applying agent-based approaches for intelligent vehicle problems. For example, agents for implementing a future car pooling, transportation scheduling, distributed control, traffic simulation, and so on. Although those are important problems in transportation, they are not systematically dealing with core issues in ITS yet. The purpose of this paper to introduce the concept of agent-based control (ABC) for networked systems in control theory (Fei-Yue Wang and Cheng-Hong Wang, 2003) to traffic and transportation managements, especially for smart and safe intelligent vehicles that are wireless connected, and to call for more and further research and applications of agent-based approach for ITS.
{"title":"Agent-based control strategies for smart and safe vehicles","authors":"Feiyue Wang","doi":"10.1109/ICVES.2005.1563667","DOIUrl":"https://doi.org/10.1109/ICVES.2005.1563667","url":null,"abstract":"Summary form only given. The history of agent research with transportation problems should be richer and better in the future, and should go further from air to surface and vehicles to houses. As a matter of fact, the domain of traffic and transportation management is well suited to an agent-based approach because of it geographically distributed nature and its periodically busy-idle operating characteristics. The future of intelligent transportation systems (ITS) should full of intelligent and autonomous agents that travel among traffic control centers, road intersections, highways, streets, vehicles, houses, offices, malls, via Internet, wireless, and ad hoc networks, collect right information at right times and make smart decisions so that our transportation systems would be eventually \"intelligent\". Recently, more studies have emerged on applying agent-based approaches for intelligent vehicle problems. For example, agents for implementing a future car pooling, transportation scheduling, distributed control, traffic simulation, and so on. Although those are important problems in transportation, they are not systematically dealing with core issues in ITS yet. The purpose of this paper to introduce the concept of agent-based control (ABC) for networked systems in control theory (Fei-Yue Wang and Cheng-Hong Wang, 2003) to traffic and transportation managements, especially for smart and safe intelligent vehicles that are wireless connected, and to call for more and further research and applications of agent-based approach for ITS.","PeriodicalId":443433,"journal":{"name":"IEEE International Conference on Vehicular Electronics and Safety, 2005.","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124612798","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 : 2005-12-27DOI: 10.1109/ICVES.2005.1563624
Luis Alberto Paredes Hermandez, Mariano García Otero, Dept. Seniales
This paper analyzes several interference cancellation schemes applied to STBC-TCM for MC-CDMA. In these systems, a linear MMSE detector is conventionally used to reduce interference generated by multipath, multiuser, and multiple antennas propagation. To obtain further performance improvements (measured in terms of bit error rates), a more efficient SOVA-based iterative MMSE scheme is considered. This receiver performs soft interference cancellation for every user based on a combination of the MMSE criterion and the turbo processing principle. It is shown that these block space-time concatenated with coding channel detectors can potentially provide significant capacity enhancements over the conventional matched filter receiver.
{"title":"A new STB-TCM coded MC-CDMA systems with MMSE-SOVA based decoding and soft-interference cancellation","authors":"Luis Alberto Paredes Hermandez, Mariano García Otero, Dept. Seniales","doi":"10.1109/ICVES.2005.1563624","DOIUrl":"https://doi.org/10.1109/ICVES.2005.1563624","url":null,"abstract":"This paper analyzes several interference cancellation schemes applied to STBC-TCM for MC-CDMA. In these systems, a linear MMSE detector is conventionally used to reduce interference generated by multipath, multiuser, and multiple antennas propagation. To obtain further performance improvements (measured in terms of bit error rates), a more efficient SOVA-based iterative MMSE scheme is considered. This receiver performs soft interference cancellation for every user based on a combination of the MMSE criterion and the turbo processing principle. It is shown that these block space-time concatenated with coding channel detectors can potentially provide significant capacity enhancements over the conventional matched filter receiver.","PeriodicalId":443433,"journal":{"name":"IEEE International Conference on Vehicular Electronics and Safety, 2005.","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114252895","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 : 2005-12-27DOI: 10.1109/ICVES.2005.1563604
Li Qiang, H. Ren
Steer by wire (SBW) systems have many merits over traditional power steering systems in fuel efficiency, space efficiency, security and comfort by virtue of eliminating the mechanical link between the steering wheel and the front wheel. This paper aims at modeling the mechanical parts, the steering wheel motor, the front wheel motor and electronic control unit (ECU) of the SBW System by bond graph approach and simulating complete system dynamic behavior regarding vehicle maneuverability and stability and driver's steering feel. With the model built by Matlab/Simulink, the simulation results have demonstrated that the SBW system enables the steering wheel motor to generate desirable reactive torque and the front wheel motor to provide an appropriate angle of front wheel for the driver's steering torque and at different vehicle speed. The simulation also shows that it possible to control the vehicle behavior along with steering responsiveness characteristic by changing parameter values of SBW system variables. The work in the paper will help to guide further researches on control algorithm of the SBW system.
{"title":"Modeling and simulation study of the steer by wire system using bond graph","authors":"Li Qiang, H. Ren","doi":"10.1109/ICVES.2005.1563604","DOIUrl":"https://doi.org/10.1109/ICVES.2005.1563604","url":null,"abstract":"Steer by wire (SBW) systems have many merits over traditional power steering systems in fuel efficiency, space efficiency, security and comfort by virtue of eliminating the mechanical link between the steering wheel and the front wheel. This paper aims at modeling the mechanical parts, the steering wheel motor, the front wheel motor and electronic control unit (ECU) of the SBW System by bond graph approach and simulating complete system dynamic behavior regarding vehicle maneuverability and stability and driver's steering feel. With the model built by Matlab/Simulink, the simulation results have demonstrated that the SBW system enables the steering wheel motor to generate desirable reactive torque and the front wheel motor to provide an appropriate angle of front wheel for the driver's steering torque and at different vehicle speed. The simulation also shows that it possible to control the vehicle behavior along with steering responsiveness characteristic by changing parameter values of SBW system variables. The work in the paper will help to guide further researches on control algorithm of the SBW system.","PeriodicalId":443433,"journal":{"name":"IEEE International Conference on Vehicular Electronics and Safety, 2005.","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114984312","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 : 2005-12-27DOI: 10.1109/ICVES.2005.1563628
Yuehu Liu, Yuanqi Su, Yunfeng Zhu, Zejian Yuan
Rapidly and robust image enhancement transformation is important for numerous applications in intelligent video surveillance, which can improve the quality of scene image and extract better features in complex environment where the images undergo large lighting changes. In this paper, a multi-scale retinex algorithm is presented for image enhancement, which has two contributions. First, the initial approximation image is computed by both each pixel value and maximum value of original image. Second, discrete wavelet transformation is used to decrease computation complexity. Experimental tests on numerous scene images show that proposed algorithm has better performance for edge detecting from surveillance images and lane images.
{"title":"A multi-scale retinex algorithm for image enhancement","authors":"Yuehu Liu, Yuanqi Su, Yunfeng Zhu, Zejian Yuan","doi":"10.1109/ICVES.2005.1563628","DOIUrl":"https://doi.org/10.1109/ICVES.2005.1563628","url":null,"abstract":"Rapidly and robust image enhancement transformation is important for numerous applications in intelligent video surveillance, which can improve the quality of scene image and extract better features in complex environment where the images undergo large lighting changes. In this paper, a multi-scale retinex algorithm is presented for image enhancement, which has two contributions. First, the initial approximation image is computed by both each pixel value and maximum value of original image. Second, discrete wavelet transformation is used to decrease computation complexity. Experimental tests on numerous scene images show that proposed algorithm has better performance for edge detecting from surveillance images and lane images.","PeriodicalId":443433,"journal":{"name":"IEEE International Conference on Vehicular Electronics and Safety, 2005.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124698210","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 : 2005-12-27DOI: 10.1109/ICVES.2005.1563653
Lu Fei, Liu Hongguang
A brand new intelligent system of vehicle scheduling is proposed and applied to the logistics companies whose service is transportation with vehicle. The key technology of this system is a compound fuzzy-neuron networks. First, a synthetically satisfied function is conceived. Then it is divided into three sub-functions. Each sub-function is each based on its own fuzzy rules and realized by a compound fuzzy-neuron networks. The final value of each vehicle is the sum of each sub-function multiplying its own right. The selective car which has the highest value is the vehicle to receive the scheduling order.
{"title":"An intelligent strategy of vehicle scheduling based on fuzzy-neuron networks","authors":"Lu Fei, Liu Hongguang","doi":"10.1109/ICVES.2005.1563653","DOIUrl":"https://doi.org/10.1109/ICVES.2005.1563653","url":null,"abstract":"A brand new intelligent system of vehicle scheduling is proposed and applied to the logistics companies whose service is transportation with vehicle. The key technology of this system is a compound fuzzy-neuron networks. First, a synthetically satisfied function is conceived. Then it is divided into three sub-functions. Each sub-function is each based on its own fuzzy rules and realized by a compound fuzzy-neuron networks. The final value of each vehicle is the sum of each sub-function multiplying its own right. The selective car which has the highest value is the vehicle to receive the scheduling order.","PeriodicalId":443433,"journal":{"name":"IEEE International Conference on Vehicular Electronics and Safety, 2005.","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124762998","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 : 2005-12-27DOI: 10.1109/ICVES.2005.1563665
C. Tang, TiaoxiaZhang
An active suspension system for vehicles using NN (neural networks) & GA (genetic algorithm) and LQG (linear quadratic gaussian) controls is proposed in the paper. A four-degree freedom suspension vibration model is described by a nonlinear system, subject to irregular excitations from a road surface. The performance of the nonlinear suspension with the NN & GA controller is compared with the performance with the LQG controller. The simulation results indicate that the proposed active suspension system proves to be effective in the vibration isolation of the suspension system. The control object of an active suspension system is to produce excellent ride comfort and good holding ability.
{"title":"The research on control algorithms of vehicle active suspension system","authors":"C. Tang, TiaoxiaZhang","doi":"10.1109/ICVES.2005.1563665","DOIUrl":"https://doi.org/10.1109/ICVES.2005.1563665","url":null,"abstract":"An active suspension system for vehicles using NN (neural networks) & GA (genetic algorithm) and LQG (linear quadratic gaussian) controls is proposed in the paper. A four-degree freedom suspension vibration model is described by a nonlinear system, subject to irregular excitations from a road surface. The performance of the nonlinear suspension with the NN & GA controller is compared with the performance with the LQG controller. The simulation results indicate that the proposed active suspension system proves to be effective in the vibration isolation of the suspension system. The control object of an active suspension system is to produce excellent ride comfort and good holding ability.","PeriodicalId":443433,"journal":{"name":"IEEE International Conference on Vehicular Electronics and Safety, 2005.","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129206112","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 : 2005-12-27DOI: 10.1109/ICVES.2005.1563668
Li Li, Feiyue Wang, Qunzhi Zhou
The comfort and safety of driving tightly depends on good working condition of the vehicle tires. However, it is not easy for people to estimate tire pressure, temperature and tire/road friction force etc. correctly, especially when driving on road. As a result, numerous novel tire sensors and inspection devices were developed in the last two decades to make driving more safe and comfortable. In addition, these approaches also related to scrap tire pollution and highway noise reduction. This paper presents a brief survey of the recent advances in this field with a special focus on SAW tire sensors.
{"title":"A watch in developments of intelligent tire inspection and monitoring","authors":"Li Li, Feiyue Wang, Qunzhi Zhou","doi":"10.1109/ICVES.2005.1563668","DOIUrl":"https://doi.org/10.1109/ICVES.2005.1563668","url":null,"abstract":"The comfort and safety of driving tightly depends on good working condition of the vehicle tires. However, it is not easy for people to estimate tire pressure, temperature and tire/road friction force etc. correctly, especially when driving on road. As a result, numerous novel tire sensors and inspection devices were developed in the last two decades to make driving more safe and comfortable. In addition, these approaches also related to scrap tire pollution and highway noise reduction. This paper presents a brief survey of the recent advances in this field with a special focus on SAW tire sensors.","PeriodicalId":443433,"journal":{"name":"IEEE International Conference on Vehicular Electronics and Safety, 2005.","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133475596","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 : 2005-12-27DOI: 10.1109/ICVES.2005.1563632
Li Tian, S. Kamata, K. Tsuneyoshi
Matching objects is a fundamental problem for any object detection system. Feature-based methods in matching objects such as vehicles often encounter the problem of correspondences between features of two related patterns. The features may be points, lines, curves and regions. Point pattern matching (PPM) is a primary and essential approach for establishing a correspondence within two related patterns. Although some well-known Hausdorff distance measures work well for this task, they are very computational expensive and suffer from the noise of images. In this paper, we propose a novel similarity measure using Hubert curve named Hubert scanning distance (HSD) to resolve the problems. This method computes the distance measure in one-dimensional (1-D) sequence in stead of in two-dimensional (2-D) image space, which greatly reduce the computational complexity. By applying a threshold elimination function, extreme distances caused by noise and position errors (e.g. those that occur with feature or edge extraction) are removed. The experimental results show that HSD can provide sufficient information for matching vehicles within low computational complexity. We believe this point out a new direction for the research of PPM.
{"title":"Matching vehicles using Hilbert scanning distance","authors":"Li Tian, S. Kamata, K. Tsuneyoshi","doi":"10.1109/ICVES.2005.1563632","DOIUrl":"https://doi.org/10.1109/ICVES.2005.1563632","url":null,"abstract":"Matching objects is a fundamental problem for any object detection system. Feature-based methods in matching objects such as vehicles often encounter the problem of correspondences between features of two related patterns. The features may be points, lines, curves and regions. Point pattern matching (PPM) is a primary and essential approach for establishing a correspondence within two related patterns. Although some well-known Hausdorff distance measures work well for this task, they are very computational expensive and suffer from the noise of images. In this paper, we propose a novel similarity measure using Hubert curve named Hubert scanning distance (HSD) to resolve the problems. This method computes the distance measure in one-dimensional (1-D) sequence in stead of in two-dimensional (2-D) image space, which greatly reduce the computational complexity. By applying a threshold elimination function, extreme distances caused by noise and position errors (e.g. those that occur with feature or edge extraction) are removed. The experimental results show that HSD can provide sufficient information for matching vehicles within low computational complexity. We believe this point out a new direction for the research of PPM.","PeriodicalId":443433,"journal":{"name":"IEEE International Conference on Vehicular Electronics and Safety, 2005.","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134556123","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 : 2005-12-27DOI: 10.1109/ICVES.2005.1563659
Kun Wang, Xingwu Jia, Shuming Tang
Automatic incident detection (AID) has become a necessity for the ever increasing traffic density for most major intersections and highways. Using vision-based AID systems, real-time incident information can be obtained automatically and precisely, and communicated to the Traffic Management Centre (TMC) for other posterior activities such as oncoming driver warning, incident processing and removal. Vision-based AID algorithms generally include three consecutive steps: object detection, vehicle tracking and activity understanding. In this paper, a great variety of vision-based AID methods are introduced and compared in detail. A method is suggested for evaluating performances of AID algorithms. In addition, this paper proposes several key technical difficulties and possible resolutions, which are often met in traffic incident detection process.
{"title":"A survey of vision-based automatic incident detection technology","authors":"Kun Wang, Xingwu Jia, Shuming Tang","doi":"10.1109/ICVES.2005.1563659","DOIUrl":"https://doi.org/10.1109/ICVES.2005.1563659","url":null,"abstract":"Automatic incident detection (AID) has become a necessity for the ever increasing traffic density for most major intersections and highways. Using vision-based AID systems, real-time incident information can be obtained automatically and precisely, and communicated to the Traffic Management Centre (TMC) for other posterior activities such as oncoming driver warning, incident processing and removal. Vision-based AID algorithms generally include three consecutive steps: object detection, vehicle tracking and activity understanding. In this paper, a great variety of vision-based AID methods are introduced and compared in detail. A method is suggested for evaluating performances of AID algorithms. In addition, this paper proposes several key technical difficulties and possible resolutions, which are often met in traffic incident detection process.","PeriodicalId":443433,"journal":{"name":"IEEE International Conference on Vehicular Electronics and Safety, 2005.","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133273337","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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