Cyclizing Clusters via Zeta Function of a Graph (2009)
Detecting underlying clusters from large-scale data plays a central role in machine learning research. In this paper, we tackle the problem of clustering complex data of multiple distributions and...
Qiong Yang, Xiaoqing Ding, Xiaoou Tang
In recent years, there has been a growing interest on the verification of unspecific person, which requires the system adaptable for unknown new subject. Most of previous works used generative...
Contextual Distance for Data Perception (2008)
Deli Zhao, Zhouchen Lin, Xiaoou Tang
Structural perception of data plays a fundamental role in pattern analysis and machine learning. In this paper, we develop a new structural perception of data based on local contexts. We first...
Degen Generalized Cylinders and Their Properties (2008)
Liangliang Cao, Jianzhuang Liu, Xiaoou Tang
Abstract. Generalized cylinder (GC) has played an important role in computer vision since it was introduced in the 1970s. While studying GC models in human visual perception of shapes from contours,...
Insignificant Shadow Detection for Video Segmentation (2008)
Dong Xu, Jianzhuang Liu, Senior Member, Xuelong Li, Zhengkai Liu, Xiaoou Tang, ...
the IEEE does not in any way imply IEEE endorsement of any of Birkbeck’s products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this...
Discriminant Mutual Subspace Learning for Indoor and Outdoor Face Recognition (2008)
Zhifeng Li, Dahua Lin, Helen Meng, Xiaoou Tang, Dept Of Seem, The Chinese
Outdoor face recognition is among the most challenging problems for face recognition. In this paper, we develop a discriminant mutual subspace learning algorithm for indoor and outdoor face...
Super-Resolution Resolution (SR) � � Super (2008)
Hallucinating Faces, Wei Liu, Wei Liu Dahua, Dahua Lin, Xiaoou Tang, Two-stage Stage, ...
e t o
Modeling Micro-patterns for Feature Extraction (2008)
Qiong Yang, Dian Gong, Xiaoou Tang
Abstract. Currently, most of the feature extraction methods based on micropatterns are application oriented. The micro-patterns are intuitively userdesigned based on experience. Few works have built...
Interactive Offline Tracking for Color Objects (2008)
Yichen Wei, Jian Sun, Xiaoou Tang, Heung-yeung Shum
In this paper, we present an interactive offline tracking system for generic color objects. The system achieves 60-100 fps on a 320 × 240 video. The user can therefore easily refine the tracking...
Joint Boosting Feature Selection for Robust Face Recognition (2008)
Rong Xiao, Wujun Li, Yuandong Tian, Xiaoou Tang
A fundamental challenge in face recognition lies in determining what facial features are important for the identification of faces. In this paper, a novel face recognition framework is proposed to...
François Alter, Yasuyuki Matsushita, Xiaoou Tang, École Normale, Supérieure Cachan
intensity similarity measure in low-light conditions
Next “Generation ” Photo and Video Technology (2008)
It is fundamentally important to develop long-term high-impact technology that aims at future applications. It is also important to develop technology that can make immediate impact on our daily...
Abstract. Multiple classifier systems provide an effective way to improve pattern recognition performance. In this paper, we use multiple classifier combination to improve LDA for high dimensional...
Chao Wang, Qiong Yang, Mo Chen, Xiaoou Tang, Zhongfu Ye
Recently, interactive image cutout technique becomes prevalent for image segmentation problem due to its easy-to-use nature. However, most existing stroke-based interactive object cutout system did...
Automatic 3D Face Modeling from Video (2008)
Le Xin, Qiang Wang, Jianhua Tao, Xiaoou Tang, Tieniu Tan, Harry Shum
In this paper, we develop an efficient technique for fully automatic recovery of accurate 3D face shape from videos captured by a low cost camera. The method is designed to work with a short video...
SALIENCE PRESERVING IMAGE FUSION WITH DYNAMIC RANGE COMPRESSION (2008)
Chao Wang, Qiong Yang, Xiaoou Tang, Zhongfu Ye
Gradient conveys important salient features in images. Traditional fusion methods based on gradient generally treat gradients from multichannels as a multi-valued vector, and compute its global...
A World Wide Web Based Image Search Engine Using Text and Image Content Features (2008)
Bo Luo, Xiaogang Wang, Xiaoou Tang
Using both text and image content features, a hybrid image retrieval system for Word Wide Web is developed in this paper. We first use a text-based image meta-search engine to retrieve images from...
Locally Adaptive Classification Piloted by Uncertainty (2008)
Juan Dai, Shuicheng Yan, Xiaoou Tang, James T. Kwok
Locally adaptive classifiers are usually superior to the use of a single global classifier. However, there are two major problems in designing locally adaptive classifiers. First, how to place the...
Locally Adaptive Classification Piloted by Uncertainty (2008)
Juan Dai, Shuicheng Yan, Xiaoou Tang, James T. Kwok
Locally adaptive classifiers are usually superior to the use of a single global classifier. However, there are two major problems in designing locally adaptive classifiers. First, how to place the...
Bayesian Tensor Inference for Sketch-based Facial Photo Hallucination (2008)
Wei Liu, Xiaoou Tang, Jianzhuang Liu
This paper develops a statistical inference approach, Bayesian Tensor Inference, for style transformation between photo images and sketch images of human faces. Motivated by the rationale that image...
Transductive Regression Piloted by Inter-Manifold Relations (2008)
Huan Wang, Shuicheng Yan, Thomas Huang, Jianzhuang Liu, Xiaoou Tang
In this paper, we present a novel semisupervised regression algorithm working on multiclass data that may lie on multiple manifolds. Unlike conventional manifold regression algorithms that do not...
Clustering with Transitive Distance and K-Means Duality (2007)
Xu, Chunjing, Liu, Jianzhuang, Tang, Xiaoou
Recent spectral clustering methods are a propular and powerful technique for data clustering. These methods need to solve the eigenproblem whose computational complexity is $O(n^3)$, where $n$ is the...
Limits of learning-based superresolution algorithms (2007)
Lin, Zhouchen, He, Junfeng, Tang, Xiaoou, Tang, Chi-Keung
Learning-based superresolution (SR) are popular SR techniques that use application dependent priors to infer the missing details in low resolution images (LRIs). However, their performance still...
A Convergent Solution to Tensor Subspace Learning (2007)
Huan Wang, Shuicheng Yan, Thomas Huang, Xiaoou Tang
Recently, substantial efforts have been devoted to the subspace learning techniques based on tensor representation, such as 2DLDA [Ye et al., 2004], DATER [Yan et al., 2005] and Tensor Subspace...
Easyalbum: an interactive photo annotation system based on face clustering and re-ranking (2007)
Jingyu Cui, Fang Wen, Rong Xiao, Ong Tian, Xiaoou Tang
Digital photo management is becoming indispensable for the explosively growing family photo albums due to the rapid popularization of digital cameras and mobile phone cameras. In an effective photo...
Learning to detect a salient object (2007)
Tie Liu, Jian Sun, Nan-ning Zheng, Xiaoou Tang, Heung-yeung Shum
Abstract We study visual attention by detecting a salient object in an input image. We formulate salient object detection as an image segmentation problem, where we separate the salient object from...
A Preliminary Study of Shallow-Water Sonar Issues: Signal Motion Loss and Reverberation Noise (2006)
Stewart, W. K., Chu, Dezhang, Tang, Xiaoou
This preliminary investigation addresses key program elements for sonar sensing in a shallow-water environment to establish bounds on possible solutions and to reduce program uncertainty. The...
Tao, Dacheng, Tang, Xiaoou, Li, Xuelong, Wu, Xindong
Relevance feedback schemes based on support vector machines (SVM) have been widely used in content-based image retrieval (CBIR). However, the performance of SVM-based relevance feedback is often poor...
Tao, Dacheng, Tang, Xiaoou, Li, Xuelong, Rui, Yong
In recent years, a variety of relevance feedback (RF) schemes have been developed to improve the performance of content-based image retrieval (CBIR). Given user feedback information, the key to a RF...
Tao, Dacheng, Tang, Xiaoou, Li, Xuelong, Wu, Xindong
Relevance feedback schemes based on support vector machines (SVM) have been widely used in content-based image retrieval (CBIR). However, the performance of SVM-based relevance feedback is often poor...
Tao, Dacheng, Tang, Xiaoou, Li, Xuelong, Rui, Yong
In recent years, a variety of relevance feedback (RF) schemes have been developed to improve the performance of content-based image retrieval (CBIR). Given user feedback information, the key to a RF...
Tao, Dacheng, Tang, Xiaoou, Li, Xuelong, Wu, Xindong
Relevance feedback schemes based on support vector machines (SVM) have been widely used in content-based image retrieval (CBIR). However, the performance of SVM-based relevance feedback is often poor...
Tao, Dacheng, Tang, Xiaoou, Li, Xuelong, Rui, Yong
In recent years, a variety of relevance feedback (RF) schemes have been developed to improve the performance of content-based image retrieval (CBIR). Given user feedback information, the key to a RF...
Tao, Dacheng, Tang, Xiaoou, Li, Xuelong, Wu, Xindong
Relevance feedback schemes based on support vector machines (SVM) have been widely used in content-based image retrieval (CBIR). However, the performance of SVM-based relevance feedback is often poor...
Tao, Dacheng, Tang, Xiaoou, Li, Xuelong, Rui, Yong
In recent years, a variety of relevance feedback (RF) schemes have been developed to improve the performance of content-based image retrieval (CBIR). Given user feedback information, the key to a RF...
An integrated model for accurate shape alignment (2006)
Lin Liang, Fang Wen, Xiaoou Tang, Ying-qing Xu
Abstract. In this paper, we propose a two-level integrated model for accurate face shape alignment. At the low level, the shape is split into a set of line segments which serve as the nodes in the...
Jingdong Wang, Jian Sun, Long Quan, Xiaoou Tang, Heung-yeung Shum
In this paper, we address a novel problem of automatically creating a picture collage from a group of images. Picture collage is a kind of visual image summary — to arrange all input images on a...
Accurate face alignment using shape constrained Markov network (2006)
Lin Liang, Fang Wen, Ying-qing Xu, Xiaoou Tang, Heung-yeung Shum
In this paper, we present a shape constrained Markov network for accurate face alignment. The global face shape is defined as a set of weighted shape samples which are integrated into the Markov...
The design of high-level features for photo quality assessment (2006)
Yan Ke, Xiaoou Tang, Feng Jing
1 We propose a principled method for designing high level features for photo quality assessment. Our resulting system can classify between high quality professional photos and low quality snapshots....
The design of high-level features for photo quality assessment (2006)
Yan Ke, Xiaoou Tang, Feng Jing
We propose a principled method for designing high level features for photo quality assessment. Our resulting system can classify between high quality professional photos and low quality snapshots....
Accurate face alignment using shape constrained Markov network (2006)
Lin Liang, Fang Wen, Ying-qing Xu, Xiaoou Tang, Heung-yeung Shum
In this paper, we present a shape constrained Markov network for accurate face alignment. The global face shape is defined as a set of weighted shape samples which are integrated into the Markov...
Jingdong Wang, Jian Sun, Long Quan, Xiaoou Tang, Heung-yeung Shum
In this paper, we address a novel problem of automatically creating a picture collage from a group of images. Picture collage is a kind of visual image summary — to arrange all input images on a...
Stereo Correspondence with Occlusion Handling in a Symmetric Patch-Based Graph-Cuts Model (2006)
Yi Deng, Qiong Yang, Xueyin Lin, Xiaoou Tang, Senior Member
A novel patch-based correspondence model is presented in this paper. Many segment-based cor-respondence approaches have been proposed in recent years. Untextured pixels and boundaries of...
Random sampling for subspace face recognition (2006)
Abstract. Subspace face recognition often suffers from two problems: (1) the training sample set is small compared with the high dimensional feature vector; (2) the performance is sensitive to the...
Space-time video montage (2006)
Hong-wen Kang, Yasuyuki Matsushita, Xiaoou Tang, Xue-quan Chen
Conventional video summarization methods focus predominantly on summarizing videos along the time axis, such as building a movie trailer. The resulting video trailer tends to retain much empty space...
Jian Sun, Weiwei Zhang, Xiaoou Tang, Heung-yeung Shum
Abstract. In this paper, we introduce background cut, a high quality and realtime foreground layer extraction algorithm. From a single video sequence with a moving foreground object and stationary...
Insignificant shadow detection for video segmentation (2005)
Xu, Dong, Liu, Jianzhuang, Li, Xuelong, Liu, Zhengkai, Tang, Xiaoou
To prevent moving cast shadows from being misunderstood as part of moving objects in change detection based video segmentation, this paper proposes a novel approach to the cast shadow detection based...
Insignificant shadow detection for video segmentation (2005)
Xu, Dong, Liu, Jianzhuang, Li, Xuelong, Liu, Zhengkai, Tang, Xiaoou
To prevent moving cast shadows from being misunderstood as part of moving objects in change detection based video segmentation, this paper proposes a novel approach to the cast shadow detection based...
Insignificant shadow detection for video segmentation (2005)
Xu, Dong, Liu, Jianzhuang, Li, Xuelong, Liu, Zhengkai, Tang, Xiaoou
To prevent moving cast shadows from being misunderstood as part of moving objects in change detection based video segmentation, this paper proposes a novel approach to the cast shadow detection based...
Insignificant shadow detection for video segmentation (2005)
Xu, Dong, Liu, Jianzhuang, Li, Xuelong, Liu, Zhengkai, Tang, Xiaoou
To prevent moving cast shadows from being misunderstood as part of moving objects in change detection based video segmentation, this paper proposes a novel approach to the cast shadow detection based...
Discriminant analysis with tensor representation (2005)
Shuicheng Yan, Dong Xu, Qiang Yang, Lei Zhang, Xiaoou Tang, Hong-jiang Zhang
In this paper, we present a novel approach to solving the supervised dimensionality reduction problem by encoding an image object as a general tensor of 2nd or higher order. First, we propose a...
Bi-directional tracking using trajectory segment analysis (2005)
Jian Sun, Weiwei Zhang, Xiaoou Tang, Heung-yeung Shum
Abstract In this paper, we present a novel approach to keyframe-based tracking, called bi-directional tracking. Given two object templates in the beginning and ending keyframes, the bi-directional...
Detecting doctored images using camera response normality and consistency (2005)
Zhouchen Lin, Rongrong Wang, Xiaoou Tang, Heung-yeung Shum
The advance in image/video editing techniques has facilitated people in synthesizing realistic images/videos that may hard to be distinguished from real ones by visual examination. This poses a...
Full-frame video stabilization (2005)
Yasuyuki Matsushita, Eyal Ofek, Xiaoou Tang, Heung-yeung Shum
Video stabilization is an important video enhancement technology which aims at removing annoying shaky motion from videos. We propose a practical and robust approach of video stabilization that...
Tensor-based factor decomposition for relighting (2005)
Dahua Lin, Yingqing Xu, Xiaoou Tang, Shuicheng Yan
Abstract — Lighting condition is an important factor in face analysis and synthesis, which has received extensive study in both computer vision and computer graphics. Motivated by the work on...
Discriminant analysis with tensor representation (2005)
Shuicheng Yan, Dong Xu, Qiang Yang, Lei Zhang, Xiaoou Tang, Hong-jiang Zhang
In this paper, we present a novel approach to solving the supervised dimensionality reduction problem by encoding an image object as a general tensor of 2nd or higher order. First, we propose a...
Effective Browsing of Web Image Search Results (2004)
Hao Liu, Xing Xie, Xiaoou Tang, Zhi-wei Li, Wei-ying Ma
The rapid development of web image search engines has enabled users to search hundred million of images available on the Web. However, due to the unsatisfactory performance of current search...
Face hallucination and recognition (2003)
Abstract. In video surveillance, the faces of interest are often of small size. Image resolution is an important factor affecting face recognition by human and computer. In this paper, we study the...
Face hallucination and recognition (2003)
Abstract. In video surveillance, the faces of interest are often of small size. Image resolution is an important factor affecting face recognition by human and computer. In this paper, we study the...
Optical and Sonar Image Classification: Wavelet Packet Transform vs Fourier Transform (2000)
Xiaoou Tang, W. Kenneth Stewart
To develop a noise-insensitive texture classification algorithm for both optical and underwater sidescan sonar images, we study the multichannel texture classification algorithm that uses the wavelet...
Transform Texture Classification. (1997)
This thesis addresses the three major components of a texture classification system: texture image transform, feature extraction/selection, and classification. For the first component, a unique...
Dominant Run-Length Method for Image Classification. (1997)
In this paper, we develop a new run-length texture feature extraction algorithm that significantly improves image classification accuracy over traditional techniques. By directly using part or all of...
Dominant run-length method for image classification (1997)
In this paper, we develop a new run-length texture feature extraction algorithm that significantly improves image classification accuracy over traditional techniques. By directly using part or all of...
Dominant run-length method for image classification (1997)
In this paper, we develop a new run-length texture feature extraction algorithm that significantly improves image classification accuracy over traditional techniques. By directly using part or all of...
Texture Classification Using Wavelet Packet and Fourier Transforms. (1997)
A new texture classification algorithm using wavelet packet transform is proposed. It uses principal component analysis technique and statistical distance measurement to combine and select frequency...
Transform texture classification / (1996)
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1996.
Transform texture classification (1996)
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1996.
Transform texture classification (1996)
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1996.
Stewart, W. Kenneth, Chu, Dezhang, Tang, Xiaoou
This preliminary investigation addresses key program elements for sonar sensing in a shallow-water environment to establish bounds on possible solutions and to reduce program uncertainty. The...
Stewart, W. Kenneth, Chu, Dezhang, Tang, Xiaoou
This preliminary investigation addresses key program elements for sonar sensing in a shallow-water environment to establish bounds on possible solutions and to reduce program uncertainty. The...