刘济林
目前主要从事机器视觉、数字视频与智能交通系统的教学研究工作。
个性化签名
- 姓名:刘济林
- 目前身份:
- 担任导师情况:
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学术头衔:
博士生导师
- 职称:-
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学科领域:
发酵工程
- 研究兴趣:目前主要从事机器视觉、数字视频与智能交通系统的教学研究工作。
1947年生,浙江大学教授,博士生导师。1970年毕业于北京清华大学,留校任教。1981年毕业于中国科学院研究生院,获硕士学位后一直在浙江大学任教。曾先后于1985 -1987 年在联邦德国西柏林工业大学计算机系,1996年在德国国家信息工程中心,1999年在美国加州大学 Berkeley分校作访问学者。主要学术兼职为中国图象图形学会常务理事、中国通信学会通信理论与信号处理专业委员会委员、《数据采集与处理》编委、美国纽约科学院member、IEEE member和俄罗斯人工智能和多处理机系统国际会议UMC2001-2004程序委员会委员。目前主要从事机器视觉、数字视频与智能交通系统的教学研究工作。
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成果阅读
452
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成果数
10
【期刊论文】A High Performance License Plate Recognition System Based On The Web Technique
刘济林, Dai Yan, Ma Hongqing, Liu Jilin and Li Langang
2001 IEEE Intelligent Transportation Systems Conference Peoceedings-Oakland (CA), USA-August 25-29, 2001,-0001,():
-1年11月30日
License Plate Recognition (LPR) System is one kind of Intelligent Transportation Systems (ITS) and is of considerable interest because of its potential applications to such areas as highway electronic toll collection, red-light violation enforcement, secure-access control at parking lots and so on. This paper introduces the system frame and work flow of our LPR System which works based on the web technique. Some problems of the technical emphases and realization are also addressed here. Capabilities under practical conditions show the effectiveness at the end of this paper.
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70浏览
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【期刊论文】Initial localization for an indoor mobile robot using a laser range finder
刘济林, Zhiyu Xiang*, Jilin Liu
,-0001,():
-1年11月30日
In this paper, a new method of initial localization for a mobile robot only employing a laser range finder is proposed. We accomplish this by the matching of "Complete Line Segments (CLS)" derived from current scan of range finder and the priori-map. The definition of "Complete Line Segments (CLS)" and "Sub-Complete Line Segments (SLS)" as well as their properties and decision rules are given. We confirm that, in the angle of theory, the initial localization can be accompli shed even if only one pair of CLS can be matched exactly since the CLS represent some basic but complete features of the environment. So compare with other ways, this method has simpler principle and can easily be implemented with less computational costs. The whole process of initial localization for a mobile robot is described in detail. At last promising real-world experiments involving the initial localization modules on our ATRV2 mobile robot are described.
laser range finder,, mobile robots,, self-localization,, global localization,, CLS.,
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33浏览
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128下载
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【期刊论文】Scan Matching Based on CLS Relationships
刘济林, Xu Zezhong, Liu Jilin, Xiang Zhiyu
Proceedings of the 2003 IEEE International Conference on Robotics, Intelligent Systems and Signal Processing Changsha, China-Octoer 2003,-0001,():
-1年11月30日
Position estimation based on scan matching is a type of popular approaches for mobile robat localization in indoor office-like environments. Globai scan matching and local scan mat ching are two basic position estimation problems. Global scan matching is subject to global localization for mobile robat and local scon matching is used to deal with tracking mobile robot position over time. Global localizution based on scon maiching is represented in this paper. A global map is built to represent whole environment feature and a local map is built to represent current range scan, Global map and local map consist of a lot of tine segments. Compltte line segment that represents a complete environment object is singled out and used to match between local map and giobal map. Line segments are sorted counterclockwise in two maps.This type of ardinal map improves the searching efficiency of matching and loculization algorithm is limesaving. In addition, matching between current range scan and globul map is hased on relative position relationships of line segments in local and glohal map. Glohal localization based on relative psition relationship Avoids frequent coordinates transformation and lowers computational cost. All these techniques have been implemented on our mobile robot ATRVII equipped with 2D laser range scanner SICK.
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55浏览
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108下载
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【期刊论文】A NEW LOCALIZATION METHOD FOR CONTAINER AUTO-RECOGNITION SYSTEM
刘济林, He Zhiwei, Liu Jilin, Ma Hongqing, Li Peihong
IEEE Int. Conf. Neural Networks & Signal Processing Nanjing, China, December 14-17, 2003,-0001,():
-1年11月30日
A novel preprocessing and localization method has been proposed for container auto recognition system. The method combines both linerar filters and nonlinera filters to reducs noises on an image. Selection method of the adaptive parameter of the filters in discussde thoroughly. Tests have been made based on the mehod, Character Lines can be properly located with a ratio of above 98%.
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37浏览
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【期刊论文】Small Obstacle Detection for Autonomous Land Vehicle under Semi-structural Environments
刘济林, Zhiyu Xiang, Zezhong Xu, Jilin Liu
,-0001,():
-1年11月30日
It is very necessary for Autonomous Land Vehicle (ALV) to hove a reliable abiliiy of obstacle detection. Unlike srructural highway, environmems, where only vehicles ahead of the ALV are needed to consider, small obstacles are more ofien seen in semi-structural environments. In this paper we described a small obstacle detection qsrem for ALV under such ein.iroiiinenrs. The system consists of hvo 2D Laser Range Finders (LRE) which are responsible for obstacle recognizing and tracking respectively. For iop LRF. a D-S evidence riieon, based ousiacle recognition algorithm is used to distringuish the obstacles from rhe brushwood on the roadsides. Based on that. an obstacle tracking process ir sraricd bj, uillsing the data from borrom LRF. Besides the obstacles, the distribution of the brushwood on roadsides, which could be used,ior path planning. is also obtained. The experimenral results demonstrate our success.
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64浏览
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【期刊论文】Map building and Localization Using 2D Range Scanner
刘济林, Xu Zezhong, Liu Jilin, Xiang Zhiyu
Proceedings 2003 IEEE International Symposium on Computational Intelligence in Robotics and Automation July 16-20, 2003, Kobe, Japan,-0001,():
-1年11月30日
This paper presents a global localization method based map matching. A local map is built by uccessive splitting and merging scan points. A global map is built by merging all local maps. Local and global map are represented line segments that are sorted counterclockwise. Complete line segments are selected to match between two maps. Matching is based on relative position relation complete line segment. Localization algorithm based ordinal map and based on relative position relation improves matching efficiency and lowers computational cost. All these techniques have been implemented on mobile robot ATRVII equipped with 2D laser scanner SICK.
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61浏览
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160下载
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【期刊论文】Global Localization Based on Corner Point
刘济林, Xu Zezhong Liang Ronghua Liu Jilin
Proceedings 2003 IEEE International Symposium on Computational Intelligence in Robotics and Automation July 16-20,2003, Kobe, Japan,-0001,():
-1年11月30日
Map matching is a type of popular localization approaches for mobile robot autonomous navigation in indoor environment. Global localization is to fmd the best correspondence between current local map and the global map. Local map and global map are represented with comer points that are sorted counterclockwise. Relative position relation of comer points is computed in local and global map and used to search matched pairs. Map matching based on ordinal map improves the searchmg efficiency. Map matching based on relative position relation avoids frequent coordinates transformation. All these techniques have been implemented on our mobile robot ATRVII equipped with 2D laser range scanner SICK.
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44浏览
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65下载
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【期刊论文】A Video-based Traffic Information Extraction System
刘济林, Li Peihong, Ding Liya, and Liu Jilin
,-0001,():
-1年11月30日
The paper presents the improvement and enhancement to the existing video based traffic detecting system. The works are concentrated on the acquiring and update of background image, a new solution to segmentation of vehicles from the background and adding peripheral interfaces. The simulation and experimental results are effective.
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24浏览
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【期刊论文】Intelligent Freight Train ID Recognition System
刘济林, Ding Liya, Liu Jilin
The IEEE 5th International Conference on Intellgent Transportation Systems 3-6 September 2002, Singapore.,-0001,():
-1年11月30日
In this paper, we present the Intelligcnt Freight Train ID Recognition Systein (IFTIRS), which is a kind of Intcliigent Transportation Systcin (ITS). It can be used at any place along the railway. Rccognizing the ID, including the scrial number and configuration paramcters of the carriages, enable convenient and autornatic managcmcnt of frcight train systcm. The systcm constinution and workflow are introduced, and the technique of image acquisition, charactcrs location, isotation of each character, character rccognition and database monagcment are also addresscd in details, At the end of this paper, capability under practical condition shows the effeetivcness of our IFTIRS.
Characters location,, Character recognition,, Image acquisition,, Single character segmentation
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49浏览
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75下载
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【期刊论文】Map Building for Indoor Environment with Laser Range Scanner
刘济林, Zezhong Xu, Jilin Liu, Zhiyu Xiang, Han Li
The IEEE 5th International Conference on Intellgent Transportation Systems 3-6 September 2002, Singapore.,-0001,():
-1年11月30日
method of map bullding for indoor envlronment is prescntcd. It is based on adaptive clustering and welghted averaging, Different threshold valuc Is sclccted to cluster these sompling points at different posltion. Clastering with varlant threshold is more reasonable than It with constant threshold. Line segments are extracted from these sampling polnts and are used to approximate the shape of environment, Parametcrs of llne segment are computed with a welght vector. Line segmcnts in envlronmental map are arrangcd according to their geometric posilion relation. This type of map is more accurate and more useful for mobile rohot navigation. All there technlques have been implemented on our mobllc robot ATRVII equipped with 2D laser range scanner SICK.
adaptive clustcring,, laser scanner,, map building,, welgth vector.,
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15浏览
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