检索结果-内蒙古大学图书馆

8th International Symposium on Computational Intelligence and Design (ISCID)

作者： Mao, Siyang Li, Lunbo Guo, Jianhui Zhao, Chunxia Nanjing Univ Sci & Technol Sch Comp Sci & Engn Nanjing Jiangsu Peoples R China

ISBN: (纸本)9781467395878

Obstacle detection is an important task in the field of environmental perception for Intelligent Ground Robots. This paper presents a new obstacle detection method which uses visual saliency detection to detect multiple obstacles in the scene. By analyzing the saliency map and the marker-based watershed algorithm, we combine their characteristics creatively to obtain accurate contours of obstacles, and propose a fast method to detect obstacles based on monocular camera and laser radar. The laser radar points representing obstacles are clustered, and projected onto the saliency map as markers of watershed algorithm. The experimental results indicate the effectiveness, robustness and performance of real-time of our method.

关键词： obstacle detection visual saliency watershed algorithm

来源：评论

学校读者我要写书评

暂无评论

Automatic Segmentation of Phalanges Regions on MR Images Based on MSGVF Snakes 15

Automatic Segmentation of Phalanges Regions on MR Images Bas...

引用

15th International Conference on Control, Automation and Systems (ICCAS)

作者： Shigeyoshi, Koji Murakami, Seiichi Kim, Hyoungseop Tan, Joo Kooi Ishikawa, Seiji Kyushu Inst Technol 1-1 Sensui Kitakyushu Fukuoka 8048550 Japan Univ Occupat & Environm Hlth Dept Radiol Kitakyushu Fukuoka Japan

ISBN: (纸本)9788993215090

In recent years, medical imaging is important in medical diagnosis for early detection of lesions. However, a large number of images increases the stress to the radiologist. Therefore, CAD (Computer Aided Diagnosis) system is expected to reduce such burden. In diagnostic imaging of phalanges, X-ray photographs, CT (Computed Tomography) are used to evaluate the value of phalanges destruction. Whereby, the MRI (Magnetic Resonance Imaging) that is used mainly to diagnose the lesion in the soft tissue is more effective in a certain case, which is one of the important CAD systems to develop. However, studies on CAD system using MR images are not as much as the studies using CT. In this paper, we propose an automatic segmentation algorithm of phalanges regions on MR images. Although it has three dimensional information, this is the method for two dimensional algorithm. In other words, we propose for each slice of MR Images. Firstly, phalanges regions in MR images are segmented for coarse regions mainly by watershed algorithm. Next, the segmented results from the previous phase are set as the initial contour. Ultimately, the accurate segmentation of the phalanges on MR images are acquired based on MSGVF snakes.

关键词： Segmentation Computer Aided Diagnosis watershed algorithm MSGVF Snakes

来源：评论

学校读者我要写书评

暂无评论

A Method based on watershed algorithm for Core Particles Image Segmentation

A Method based on Watershed Algorithm for Core Particles Ima...

引用

3rd IEEE International Conference on Computer Science and Information Technology (ICCSIT)

作者： Huang Qi-kun Zhou Yun-cai Yangtze Univ Coll Comp Sci Jingzhou Peoples R China

ISBN: (纸本)9781424455379

The watershed algorithm is the method of choice for image segmentation in the field of mathematical morphology, which is run simple, good performance and can better extract the contour of moving object This paper used the watershed algorithm definition by immersion, and modify it, achieved good results after apply to core particles image segmentation. Experiments show that the method of watershed algorithm definition by immersion can meet the core particles image segmentation on both speed and effectiveness.

关键词： watershed algorithm mathematical morphology core particles image image segmentation

来源：评论

学校读者我要写书评

暂无评论

Dry Beach of Tailings Dam Length Measurement Based on Waterline Recognition

Dry Beach of Tailings Dam Length Measurement Based on Waterl...

引用

IEEE Advanced Information Technology, Electronic and Automation Control Conference (IAEAC)

作者： Huang, Qingsong Li, Qing Wang, Yanjie Zhang, Jinfeng China Jiliang Univ Coll Mech & Elect Engn Hangzhou Zhejiang Peoples R China Zhejiang Inst Safety Sci & Technol Hangzhou Zhejiang Peoples R China

ISBN: (纸本)9781479919802

According to the terrain features of the tailings dam, the water boundary image of the tailings dam is obtained by the acquisition of the water. The contour recognition,threshold sepnentation,and watershed algorithm can be used to retrieve the boundary between dry beaches and water surface. Analyze and deal with the image pixel coordinates, the most accurate pixel coordinates of waterline can be real-time measured. According to the terrain characteristics of tailings pond,through camera monocular visual to calculate the waterline pixel coordinates and the actual length of beach geometric conversion formula,and real-time monitoring of dry beach length. Based on monocular vision with the fixed dry beach slope,the algorithm is proved to meet the requirements of dry beach length measurement.

关键词： Tailings dam Dry beach length Emgu CV Image recognition watershed algorithm

来源：评论

学校读者我要写书评

暂无评论

AUTOMATIC BLOB-BASED GLISTENING DETECTION IN INTRAOCULAR LENS

AUTOMATIC BLOB-BASED GLISTENING DETECTION IN INTRAOCULAR LEN...

引用

作者： TEERANOOT JAPUNYA THAMMASAT UNIVERSITY

学位级别：硕士

An intraocular lens (IOL) is implanted in the eye after a cataract surgery. When an IOL is in an aqueous environment, glistenings that are fluid-filled microvacuoles are often observed. Glistenings appear like sesame or bubble in IOL lens. It can effect human vision by increasing forward light scatter. Previously, studies of glistenings involved tedious work of manual glistenings labeling and rough estimation of glistening distribution. This thesis have studied about the automatic glistening detection in intraocular lens using MATLAB. The detection algorithm is applied by blob detection and exudate detection. It also using watershed algorithm to increase detection performance by separate closed, touched and overlapped glistening. We have developed software which has a user friendly for who have no knowledge about MATLAB and Image processing. After get important data includes maximum glistening area, minimum glistening area, maximum threshold value, minimum threshold value, step threshold value and lens mark, the software computes and displays important properties such as average glistening area and distribution of glistening for user. The result shows that the proposed method can efficiently detected glistening.

关键词： Glistening Detection Medical Image Processing watershed algorithm Intraocular lens

来源：评论

学校读者我要写书评

暂无评论

Segmenting multiple overlapping Nuclei in H&E stained breast cancer histopathology images based on an improved watershed

Segmenting multiple overlapping Nuclei in H&E stained breast...

引用

2015 IET International Conference on Biomedical Image and Signal Processing (ICBISP 2015)

作者： Pengfei Shen Wenjian Qin Jie Yang Wanming Hu Shifu Chen Ling Li TieXiang Wen Jia Gu Shenzhen Institutes of Advanced Techology Chinese Academy of Sciences Guangdong China Key Laboratory of Fiber Optic Sensing Techology and Information Processing Ministry of Education Wuhan University of Techology Department of pathology Sun Yat-sen University Cancer Center-Guangdong China

In histopathology images, there often exists several Nuclei overlapped with each other which causes difficulty to automatic nuclei segmentation. As we all know, watershed algorithm has been widely employed in image segmentation. But the limitation of watershed segmentation is sensitive to noise and can lead to serious over-segmentation. In this paper, we present an improved watershed transformation that incorporates opening-closing reconstruction and the distance transform with chamfer algorithm after color deconvolution, and H-minima . Unlike the classical watershed segmentation algorithm our improved method is able to resolve oversegmentation. The experiment results demonstrate our method successfully segment out each nuclei on breast cancer histology images, effectively address over-segmentation existed in traditional watershed segmentation , and preserve the original edges of each nuclei in the image completely.

关键词： Color Deconvolution Distance transform watershed algorithm opening-closing reconstruction over-lapping distance transform Nucleus nuclei (nuclear physics) watershed segmentation watershed watersheds images histopathology

来源：评论

学校读者我要写书评

暂无评论

Automatic segmentation of clustered quantum dots based on improved watershed transformation

引用

DIGITAL SIGNAL PROCESSING 2014年 34卷 108-115页

作者： Xu, Lulu Lu, Huaxiang Zhang, Min Chinese Acad Sci Inst Semicond Beijing 100190 Peoples R China

Automated analysis of the quantum dots (QDs) images is very important in the field of material science. In this frame, efficient QDs segmentation is prerequisite. In this paper, we propose an algorithm of automatic detection and segmentation of the QDs, especially the clustered ones. We depend on fuzzy c-means (FCM) method for initial segmentation of the QDs from the substrate background. Then we present a modified watershed algorithm with markers and a novel marking function. The markers are extracted by adaptive H-minima transformation. Then a marking function based on Quasi-Euclidean distance transform is introduced to accurately and rapidly separate the clustered QDs. We demonstrate the comparisons of our method with the existing approaches. The experimental results show that the proposed method is efficient and accurate with very little running time and has a high quality on QDs segmentation. (C) 2014 Elsevier Inc. All rights reserved.

关键词： watershed algorithm Quantum dots segmentation H-minima transformation Distance transform

来源：评论

学校读者我要写书评

暂无评论

An Improved Image Segmentation algorithm Based on The watershed Transform

An Improved Image Segmentation Algorithm Based on The Waters...

引用

2014 IEEE 7th Joint International Information Technology and Artificial Intelligence Conference

作者： Xuemei Cui Guowei Yang Yan Deng Shaolong Wu College of Automation Engineering Qingdao University College of Information Engineering Nanchang Hangkong University

The watershed transform has a good response to the weak edge, but it is unable to obtain meaningful segmentation results directly by using the watershed transform to the phenomenon of excessive segmentation in image segmentation. A new segmentation algorithm base on improved watershed algorithm is proposed in this paper. By the different marks on the foreground and background objects, we can obtain better effect of segmentation with the application of watershed algorithm. Through the study of the characteristics of gradient image and morphological open close function reconstruction operations in image processing, a new tag extraction method will be designed by the new algorithm, which is by using the method of opening and closing by reconstruction operators to obtain marks and by controlling the closed reconstruction of structural elements in order to interested in the gradient image area the size of the tag. Then, extracted tag using morphological minimum calibration technology forces as an original local minimum value of the gradient image, and shields the original all local minimum value in the gradient image. In the end, watershed which is modified by the gradient of the image will have a image segmentation, in such aspects as outline eliminate oversegmentation and regional positioning have a very good segmentation effect.

关键词： image segmentation mathematical morphology watershed algorithm marker extraction

来源：评论

学校读者我要写书评

暂无评论

Automatic Segmentation of Phalanges Regions on MR Images Based on MSGVF Snakes

Automatic Segmentation of Phalanges Regions on MR Images Bas...

引用

International Conference on Control, Automation and Systems

作者： Koji SHIGEYOSHI Seiichi MURAKAMI Hyoungseop KIM Joo Kooi TAN Seiji ISHIKAWA Kyushu Institute of Technology

ISBN: (纸本)9781479999767

关键词： Segmentation Computer Aided Diagnosis watershed algorithm MSGVF Snakes

来源：评论

学校读者我要写书评

暂无评论

Dry Beach of Tailings Dam Length Measurement Based on Waterline Recognition

Dry Beach of Tailings Dam Length Measurement Based on Waterl...

引用

2015 IEEE Advanced Information Technology,Electronic and Automation Control Conference(IAEAC 2015)

作者： Qingsong Huang Qing Li Yanjie Wang Jinfeng Zhang College of Mechanical and Electrical Engineering China Jiliang University

ISBN: (纸本)9781479919819

According to the terrain features of the tailings dam,the water boundary image of the tailings dam is obtained by the acquisition of the *** contour recognition,threshold segmentation,and watershed algorithm can be used to retrieve the boundary between dry beaches and water surf *** and deal with the image pixel coordinates,the most accurate pixel coordinates of waterline can be real-time *** to the terrain characteristics of tailings pond,through camera monocular visual to calculate the waterline pixel coordinates and the actual length of beach geometric conversion formula,and real-time monitoring of dry beach *** on monocular vision with the fixed dry beach slope,the algorithm is proved to meet the requirements of dry beach length measurement.

关键词： Tailings dam Dry beach length Emgu CV Image recognition watershed algorithm

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：