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检索条件"任意字段=Chinese Conference on Pattern Recognition/1st CJK Joint Workshop on Pattern Recognition"

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Proceedings of the 2009 chinese conference on pattern recognition, CCPR 2009, and the 1st cjk joint workshop on pattern recognition, cjkPR

Proceedings of the 2009 Chinese Conference on Pattern Recogn...

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2009 chinese conference on pattern recognition, CCPR 2009 and the 1st cjk joint workshop on pattern recognition, cjkPR

ISBN: (纸本)9781424441990

The proceedings contain 202 papers. The topics discussed include: local search algorithm for K-means clustering based on minimum sub-cluster size;a discretization algorithm of continuous attributes based on supervised clustering;a modified differential evolution algorithm for multi-objective optimization problems;collaborative filtering in personalized recommendation based on users pattern subspace clustering;the generic object classification based on MIML machine learning;cluster based multi-populations genetic algorithm in noisy environment;feature selection for classifying data stream based on maximum entropy;kernel-plural discriminant analysis based on Fourier transform and its application to face recognition;local graph embedding discriminant analysis for face recognition with single training sample per person;two-dimensional local graph embedding discriminant analysis(F2DLGEDA) with its application to face and palm biometrics;and gait recognition based on multi-resolution regional shape context.

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3D Gray Level Moment Invariants: A Novel Shape Representation

3D Gray Level Moment Invariants: A Novel Shape Representatio...

引用

chinese conference on pattern recognition/1st cjk joint workshop on pattern recognition

作者： Guo, Kehua Li, Min Cent South Univ Sch Informat Sci & Engn Changsha 410083 Peoples R China

ISBN: (纸本)9781424441990

3D moment invariants are traditionally based on region characteristics and the location of every pixel point, this will cause high calculation cost. In this paper, a novel shape representation named 3D gray level moment invariants is constructed. Some properties of the new representation including the independence of the translation, scaling and rotation transforms are proved. Experiments indicate an encouraging high recognition rates without reducing the recognition performance compared with traditional methods.

关键词： moment invariants gray level 3D Object recognition pattern recognition

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A Robust Low Cost Virtual Mouse Based on Face Tracking

A Robust Low Cost Virtual Mouse Based on Face Tracking

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chinese conference on pattern recognition/1st cjk joint workshop on pattern recognition

作者： Xu, Guoqing Wang, Yangsheng Feng, Xuetao Chinese Acad Sci Inst Automat Beijing 100080 Peoples R China

ISBN: (纸本)9781424441990

This paper introduces a non-contact virtual mouse controlled by tracking the face movement. It is specially designed for the disabled with mobility impairments in the upper extremities. The whole work is based on the common web camera. Improved optical flow algorithm is proposed through locating the facial features defined by active appearance model. Experiments show it is robust to the various background and environment illumination. It also can effectively track the features when the face moves fast in a large scope.

关键词： pattern recognition face detection human computer interaction

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A design of iris recognition system at a distance

A design of iris recognition system at a distance

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chinese conference on pattern recognition/1st cjk joint workshop on pattern recognition

作者： Dong, Wenbo Sun, Zhenan Tan, Tieniu Chinese Acad Sci Inst Automat Beijing 100190 Peoples R China

ISBN: (纸本)9781424441990

Iris recognition is a powerful biometrics for personal identification, but it is difficult to acquire good-quality iris images in real time. For making iris recognition more convenient to use, we design an iris recognition system at a distance about 3 meters. There are many key issues to design such a system, including iris image acquisition, human-machine-interface and image processing. In this paper, we respectively introduce how we deal with these problems and accomplish the engineering design. Experiments show that our system is convenient to use at the distance of 3 meters and the recognition rate is not worse than the state-of-the-art close-range systems.

关键词： Iris recognition iris image acquisition human-computer-interface eye detection image quality evaluation

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An Intelligent recognition System for the Phacoemulsification Cataract Surgery

An Intelligent Recognition System for the Phacoemulsificatio...

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chinese conference on pattern recognition/1st cjk joint workshop on pattern recognition

作者： Wang, Zhi-Bin Hao, Hong-Wei Yin, Xu-Cheng Liu, Qian Univ Sci & Technol Beijing Sch Informat Engn Dept Comp Sci Beijing 100083 Peoples R China

ISBN: (纸本)9781424441990

In this paper, an intelligent recognition system of phacoemulsification instrument is developed to solve some defects of current phacoemulsification cataract surgery, such as low automatic level of operation, over reliance on the ability of surgeons. The system, which utilizes pattern recognition technologies, can automatically analyze the video information of the operation process, track the emulsification probe, grade the hardness of lens nuclear and control the release of ultrasonic energy. This designed system has been tested with real microscope videos of phacoemulsification. Experimental results show that our system can largely reduce the complexity and difficulty of the cataract operation, and effectively raise the automatic level of phacoemulsification instruments.

关键词： cataract phacoemulsification probe detection pattern recognition

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Design of the Fuzzy Controller based on Oscillator Networks for a Quadruped Robot

Design of the Fuzzy Controller based on Oscillator Networks ...

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chinese conference on pattern recognition/1st cjk joint workshop on pattern recognition

作者： Li, Xun Wang, Wei Li, Bin Wang, Yanjun Yang, Yiping Chinese Acad Sci Inst Automat Beijing 100190 Peoples R China

ISBN: (纸本)9781424441990

This paper proposed a fuzzy control system based on oscillator networks for the locomotion control of the quadruped robot whose legs have no yaw freedom. The oscillator networks are used to generate stable, synchronized leg gait signal for the locomotion of the robot. The fuzzy controller is introduced to tune the parameters of the oscillator networks for generating adaptive leg motion curve for the out-door environments. The fuzzy controller consist four adaptive fuzzy rules sets to deal with the different out-door environments, respectively. The effectiveness of the proposed approach is examined in a virtual environment by computer simulations.

关键词： Oscillator Networks Quadruped Robot Fuzzy Controller

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A Unified Framework for Kernelization: the Empirical Kernel Feature Space

A Unified Framework for Kernelization: the Empirical Kernel ...

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chinese conference on pattern recognition/1st cjk joint workshop on pattern recognition

作者： Xiong, Huilin Shanghai Jiao Tong Univ Inst Image Proc & Pattern Recognit Shanghai 200240 Peoples R China

ISBN: (纸本)9781424441990

In this paper, we propose to kernelize linear learning machines, e.g., PCA and LDA, in the empirical kernel feature space, a finite-dimensional embedding space, in which the distances of the data in the kernel feature space are preserved. The empirical kernel feature space provides a unified framework for the kernelization of all kinds of linear machines: performing a linear machine in the finite-dimensional empirical feature space, its nonlinear kernel machine is then established in the original input data space. This method is different from the conventional kernel-trick based kernelization, and more importantly, the final nonlinear kernel machines, called empirical kernel machines, are shown to be more efficient in many real-world applications, such as face recognition and facial expression recognition, than the kernel-trick based kernel machines.

关键词： pattern recognition kernelization kernel machines discriminant analysis

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On-line Handwritten chinese Character recognition Based on Nested Segmentation of Radicals

On-line Handwritten Chinese Character Recognition Based on N...

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chinese conference on pattern recognition/1st cjk joint workshop on pattern recognition

作者： Ma, Long-Long Liu, Cheng-Lin Chinese Acad Sci Natl Lab Pattern Recognit Inst Automat Beijing 100190 Peoples R China

ISBN: (纸本)9781424441990

This paper presents a radical-based on-line handwritten chinese character recognition method, which integrates appearance-based radical recognition and geometric context into a principled framework using a character-radical dictionary to guide radical segmentation and recognition during path search. To solve the connection between radicals, we detect corner points to extract sub-strokes. Based on the hierarchical structure, the character pattern is over-segmented by three-layer nested pre-segmentation. For recognition, we use two dictionary representation schemes and accordingly different search algorithms. We have implemented the approach to chinese characters of left-right and up-down structures. Experimental results on a sample set of 5,773 character classes consisting of 1,149 radicals demonstrate the effectiveness of our approach.

关键词： On-line handwritten chinese character recognition hierarchical structure pre-segmentation path search radical recognition

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A Method of Building chinese Basic Semantic Lexicon Based on Word Similarity

A Method of Building Chinese Basic Semantic Lexicon Based on...

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chinese conference on pattern recognition/1st cjk joint workshop on pattern recognition

作者： Zhu, Yanhui Wen, ZhiQiang Wang, Ping Peng, Zhaoyi Hunan Univ Technol Inst Comp & Commun Zhuzhou 412008 Peoples R China

ISBN: (纸本)9781424441990

Identification of sentiment orientation in chinese words is essential for getting sentiment comprehension of chinese text, and building a basic semantic lexicon with chinese emotional words will provide a core subset for identifying emotional words in a special area. It can not only help to identify and enlarge semantic lexicon in corpus effectively but also improve classification efficiency. On the basis of the similarity of chinese words, the paper has proposed a method of calculating sentiment weight of chinese emotional words. In addition, a dictionary with basic chinese emotional words has been constructed based on the HowNet semantic lexicon. By utilizing the dictionary together with TF-IDF, we have done experiments to identify sentiment orientation in chinese text and have got satisfying classification result.

关键词： Basic Semantic Lexicon Orientation Analysis Sentiment Weight Seed Word

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Residual Factor Analysis for Text-independent Speaker Verification

Residual Factor Analysis for Text-independent Speaker Verifi...

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chinese conference on pattern recognition/1st cjk joint workshop on pattern recognition

作者： Zhu, Lei Zheng, Rong Xu, Bo Chinese Acad Sci Digital Content Technol Res Ctr Inst Automat Beijing 100190 Peoples R China

ISBN: (纸本)9781424441990

joint Factor Analysis (JFA) has become the state-of-the-art technique in the problem of speaker verification [1, 2]. At the same time, the training of eigenvoice matrix seems to be a heavy burden to us, because it requires lots of multi-channel data, which largely determines the performance of the system. In this paper, we first try to exploit an upper bound performance of the JFA system in a non-normal way, and then proposed a new technique which we referred as Residual Factor Analysis (RFA), in which we replace the eigenvoice matrix in JFA system with the residual vector, to remove the heavy burden of training eigenvoice matrix. We tested the proposed technique on the core condition of NIst 2006 speaker recognition evaluation (SRE 06) and obtained equivalent results to JFA system (equal error rate of about 3.99%)[1], while our method requires no extra multi-channel data except some for training eigenchannel matrix.

关键词： speaker verification joint factor analysis residual factor analysis

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