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2009 Chinese Conference on Pattern Recognition最新文献

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Robust Subpixel Registration for Image Mosaicing 鲁棒亚像素配准图像拼接
Pub Date : 2009-12-04 DOI: 10.1109/CCPR.2009.5344099
Cailing Wang, Yong Cheng, Chunxia Zhao
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引用次数: 6
The Generic Object Classification Based on MIML Machine Learning 基于MIML机器学习的通用对象分类
Pub Date : 2009-12-04 DOI: 10.1109/CCPR.2009.5344150
Lihua Guo, Lianwen Jin
Multi-instance and Multi-Label (MIML) machine learning has been employed in the generic object classification for it's gracefully performance in solving the ambiguity of image. The whole image is regarded as a multi-instance bag. The image is separated into four parts, whose edge's histograms are calculated. These input vectors can be combined a multi-instance ones for adapting the MIML learning. The experimental results show that the average precise ratio of our method is higher 3% than one of the traditional Support Vector Machine method.
多实例多标签(MIML)机器学习以其较好的解决图像模糊性问题的能力被应用于一般对象分类中。整个图像被看作是一个多实例包。将图像分成四部分,计算各部分的边缘直方图。这些输入向量可以组合成多实例的输入向量,以适应MIML学习。实验结果表明,该方法的平均准确率比传统的支持向量机方法提高了3%。
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引用次数: 0
A Method of Building Chinese Basic Semantic Lexicon Based on Word Similarity 基于词相似度的汉语基本语义词典构建方法
Pub Date : 2009-12-04 DOI: 10.1109/CCPR.2009.5344041
Yan-hui Zhu, Zhi-qiang Wen, Ping Wang, Zhao-yi Peng
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.
汉语情感词的情感取向识别是实现汉语文本情感理解的基础,构建汉语情感词的基本语义词典将为特定领域的情感词识别提供一个核心子集。它不仅可以有效地识别和扩大语料库中的语义词汇,而且可以提高分类效率。基于汉语词汇的相似度,提出了一种计算汉语情感词情感权重的方法。此外,在知网语义词典的基础上,构建了汉语基本情感词词典。利用该词典和TF-IDF对中文文本的情感倾向进行了识别实验,取得了满意的分类结果。
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引用次数: 4
Distant Speaker Recognition Based on the Automatic Selection of Reverberant Environments Using GMMs 基于GMMs混响环境自动选择的远距离说话人识别
Pub Date : 2009-12-04 DOI: 10.1109/CCPR.2009.5343954
Longbiao Wang, Yoshiki Kishi, A. Kai
Channel distortion for a distant environment may drastically degrade the performance of speaker recognition because the training and test conditions differ significantly. In this paper, we propose robust distant speaker recognition that is based on the automatic selection of reverberant environments using Gaussian mixture models. Three methods involving (I) optimum channel determination, (II) joint optimum speaker and channel determination, or (III) optimum channel determination at the utterance level are proposed. Real-world speech data and simulated reverberant speech data are used to evaluate our proposed methods. The third proposed method achieves a relative error reduction of 69.6% over (baseline) speaker recognition using a reverberant environment-independent method, and it has performance equivalent to that of a
由于训练和测试条件的显著差异,远距离环境下的信道失真可能会大大降低说话人识别的性能。在本文中,我们提出了基于高斯混合模型的混响环境自动选择的鲁棒远距离说话人识别。提出了三种方法,包括(I)最佳通道确定,(II)联合最佳说话人和通道确定,或(III)在话语水平上的最佳通道确定。使用真实语音数据和模拟混响语音数据来评估我们提出的方法。第三种方法使用与混响环境无关的方法实现了(基线)说话人识别的相对误差降低了69.6%,其性能相当于a
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引用次数: 3
Image Retrieval Using Discriminant Embedding and LS-SVM 基于判别嵌入和LS-SVM的图像检索
Pub Date : 2009-12-04 DOI: 10.1109/CCPR.2009.5344079
Ziqiang Wang, Xia Sun
To efficiently deal with the curse of dimensionality in the content-based image retrieval(CBIR) system, a novel image retrieval algorithm is proposed by combination of local discriminant embedding(LDE) and least square SVM(LS-SVM) in this paper. LDE aims to achieve good discriminating performance by integrating the local geometrical structure and class relations between image data. LS-SVM classifier is used to classify the retrieved image into relevant or irrelevant image based on extracted low-level visual features. Experimental results on real-world image collection demonstrate that the proposed algorithm performs much better than other related image retrieval algorithms.
为了有效地处理基于内容的图像检索(CBIR)系统中的维数缺陷,提出了一种将局部判别嵌入(LDE)与最小二乘支持向量机(LS-SVM)相结合的图像检索算法。LDE旨在通过整合图像数据之间的局部几何结构和类关系来获得良好的识别性能。LS-SVM分类器基于提取的低层次视觉特征,将检索到的图像分类为相关或不相关图像。实际图像采集实验结果表明,该算法比其他相关的图像检索算法具有更好的检索性能。
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引用次数: 0
A New Mixed Particle Filter Based on an Auxiliary Model 一种基于辅助模型的混合粒子滤波器
Pub Date : 2009-12-04 DOI: 10.1109/CCPR.2009.5344151
Yinfeng Luo, Shenglin Yu
Particle filter is an effective method for non-linear filter and it has been gained special attention of researchers in various fields. There will be a new mixed particle filter (PUPF) proposed in this paper based on the general particle filter and the unscented particle filter. lt first uses the general particle filter to generate particles for estimating the state at time k and then a new auxiliary model will be introduced. We would use the unscented particle filter to estimate the state at time k the second time. This structure makes use of the latest observation information, it has small error and better stability. The experimental results indicate that the proposed particle filter's performance outperforms the other four particle filters .The result indicates that the PUPF is a useful method for nonlinear filter problems.
粒子滤波是一种有效的非线性滤波方法,受到了各领域研究者的特别关注。本文在普通颗粒过滤器和无气味颗粒过滤器的基础上,提出了一种新型混合颗粒过滤器。首先使用一般粒子滤波器生成用于估计k时刻状态的粒子,然后引入一个新的辅助模型。我们将使用无气味粒子过滤器来估计第二次k时刻的状态。该结构利用了最新的观测信息,误差小,稳定性好。实验结果表明,所提出的粒子滤波器的性能优于其他四种粒子滤波器,表明该方法是一种有效的非线性滤波方法。
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引用次数: 0
A Note on Spectral Clustering Method Based on Normalized Cut Criterion 基于归一化切准则的谱聚类方法研究
Pub Date : 2009-12-04 DOI: 10.1109/CCPR.2009.5343984
Sumuya Bao, Chonghui Guo, Shanglei Chai
Recently spectral clustering has become one of the most popular clustering algorithms. Although it has many advantages, it still has a lot of shortcomings which should be resolved, such as there are a wide variety of spectral clustering algorithms that use the eigenvectors in slightly different ways and many of these algorithms have no proof that they will actually compute a reasonable clustering. The spectral clustering method based on normalized cut criterion is a very efficient spectral clustering method. In this paper, we give a note on why we choose the first k eigenvectors in the algorithm (rationality of the clustering) and the conditions for indicator vectors under which the clustering problem could lead to the problem of minimizing the objective function of the spectral clustering method based on normalized cut criterion.
近年来,谱聚类已成为最流行的聚类算法之一。虽然它有很多优点,但它仍然有很多缺点需要解决,比如有各种各样的谱聚类算法,它们使用特征向量的方式略有不同,其中许多算法没有证据表明它们实际上会计算出合理的聚类。基于归一化切准则的光谱聚类方法是一种非常有效的光谱聚类方法。在本文中,我们说明了为什么我们选择算法中的前k个特征向量(聚类的合理性),以及在指示向量的条件下,聚类问题可能导致基于归一化切准则的谱聚类方法的目标函数最小化问题。
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引用次数: 3
Character Normalization Methods Using Moments of Gradient Features and Normalization Cooperated Feature Extraction 基于梯度特征矩和归一化协同特征提取的特征归一化方法
Pub Date : 2009-12-04 DOI: 10.1109/CCPR.2009.5343977
Toshinori Miyoshi, T. Nagasaki, Hiroshi Shinjo
Normalization is a particular important preprocessing operation, and has a large effect on the performance of character recognition. One of the purposes of normalization is to regulate the size, position, and shape of character images so as to reduce within-class shape variations. Among various methods of normalization, moment-based normalizations are known to greatly improve the performance of character recognition. However, conventional moment-based normalization methods are susceptible to the variations of stroke length and/or thickness. In order to alleviate this problem, we propose moment normalization methods that use the moments of character contours instead of character images themselves to estimate the transformation parameters. Our experiments show that the proposed methods are effective particularly for printed character recognition.
归一化是一项特别重要的预处理操作,对字符识别的性能影响很大。规范化的目的之一是调节字符图像的大小、位置和形状,以减少类内形状的变化。在各种归一化方法中,基于矩的归一化可以极大地提高字符识别的性能。然而,传统的基于矩的归一化方法容易受到冲程长度和/或厚度变化的影响。为了缓解这一问题,我们提出了一种矩归一化方法,即使用字符轮廓的矩而不是字符图像本身来估计变换参数。实验结果表明,本文提出的方法对印刷字符的识别是有效的。
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引用次数: 5
Video Moving Object Segmentation Algorithm Based on an Improved Kirsch Edge Operator 基于改进Kirsch边缘算子的视频运动目标分割算法
Pub Date : 2009-12-04 DOI: 10.1109/CCPR.2009.5344071
Wenjia Yang, L. Dou, Juan Zhang
To solve the problem of moving object segmentation in video sequence, a new video moving object segmentation algorithm was proposed based on Kirsch edge operator. The detected edge is mainly analyzed for segmentation and motion vector field is taken as assistant information. Firstly, the motion vectors are processed by accumulation and median filer. Secondly, templates of Kirsch operators are decomposed into difference templates and common templates to find the edge position; then, the edge information and the motion vectors are fused to get moving object by adaptive state labeling. The experimental results show the proposed algorithm has a better veracity of segmentation.
为了解决视频序列中运动目标的分割问题,提出了一种基于Kirsch边缘算子的视频运动目标分割算法。主要分析检测到的边缘进行分割,并以运动向量场作为辅助信息。首先,对运动矢量进行累积和中值滤波处理;其次,将Kirsch算子模板分解为差分模板和通用模板,寻找边缘位置;然后,通过自适应状态标记将边缘信息与运动向量融合得到运动目标;实验结果表明,该算法具有较好的分割准确率。
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引用次数: 1
Shannon Entropy-Based Adaptive Fusion Particle Filter for Visual Tracking 基于Shannon熵的自适应融合粒子滤波视觉跟踪
Pub Date : 2009-12-04 DOI: 10.1109/CCPR.2009.5344074
Yu Song, Qingling Li, F. Sun
Shannon entropy is effective uncertainty measurement criterion for stochastic system. In this paper, adaptive fusion particle filter is proposed for visual tracking by introduced Shannon entropy in particle filter framework. Firstly, the particle filter, which is considered as the process of particles assimilating negative entropy to reduce uncertainty, is surveyed from viewpoint of information theory. Secondly, maximum negative entropy criterion is proposed to select tracking feature form features pool online. At last, color histogram and edge orientation histogram features are utilized in experiments, tracking results show that the proposed algorithm is a robust and accuracy tracking algorithm.
香农熵是随机系统的有效不确定性度量准则。在粒子滤波框架中引入香农熵,提出一种用于视觉跟踪的自适应融合粒子滤波方法。首先,从信息论的角度对粒子滤波进行了研究,认为粒子滤波是粒子吸收负熵以减少不确定性的过程;其次,提出最大负熵准则,在线从特征池中选择跟踪特征;最后,利用颜色直方图和边缘方向直方图特征进行了实验,跟踪结果表明该算法具有鲁棒性和准确性。
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引用次数: 3
期刊
2009 Chinese Conference on Pattern Recognition
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