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 Hong Liu

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Average citations per article1.46
Citation Count35
Publication count24
Publication years2004-2016
Available for download2
Average downloads per article159.00
Downloads (cumulative)318
Downloads (12 Months)54
Downloads (6 Weeks)6
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24 results found Export Results: bibtexendnoteacmrefcsv

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1
April 2016 Image and Vision Computing: Volume 48 Issue C, April 2016
Publisher: Butterworth-Heinemann
Bibliometrics:
Citation Count: 1

Nowadays, with so many surveillance cameras having been installed, the market demand for intelligent violence detection is continuously growing, while it is still a challenging topic in research area. Therefore, we attempt to make some improvements of existing violence detectors. The primary contributions of this paper are two-fold. Firstly, a ...
Keywords: SVM, Oriented VIolent Flows, Violence detection, AdaBoost

2
February 2016 Neurocomputing: Volume 177 Issue C, February 2016
Publisher: Elsevier Science Publishers B. V.
Bibliometrics:
Citation Count: 1

Human activity prediction is defined as inferring the high-level activity category with the observation of only a few action units. It is very meaningful for time-critical applications such as emergency surveillance. For efficient prediction, we represent the ongoing human activity by using body part movements and taking full advantage of ...
Keywords: Recurrent Self-Organizing Map, Mean shift, Spatio-temporal interest points, Human activity prediction

3
January 2016 Neurocomputing: Volume 175 Issue PA, January 2016
Publisher: Elsevier Science Publishers B. V.
Bibliometrics:
Citation Count: 4

Human activity recognition using sole depth information from 3D sensors achieves superior performances to tackle light changes and cluttered backgrounds than using RGB sequences from traditional cameras. However, the noises and occlusions in depth data, which are common problems for 3D sensors, are not well handled. Moreover, many existing methods ...
Keywords: Activity recognition, Bag-of-Visual-Words, Depth data, Shape context

4
January 2016 Neurocomputing: Volume 174 Issue PB, January 2016
Publisher: Elsevier Science Publishers B. V.
Bibliometrics:
Citation Count: 1

Smile detection is a sub-problem of facial expression recognition field, which has attracted more and more interests from researchers because of its wide application market. As for smile detection problem itself, the wild unconstrained scenario is more challenging than the laboratory constrained scenario. Therefore, in this paper, we mainly focus ...
Keywords: Support Vector Machine, Histogram of Oriented Gradients, Self-Similarity of Gradients, AdaBoost, Extreme Learning Machines, Smile detection

5 published by ACM
October 2015 MM '15: Proceedings of the 23rd ACM international conference on Multimedia
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 2,   Downloads (12 Months): 32,   Downloads (Overall): 135

Full text available: PDFPDF
This paper presents a pioneering study on gender classification from unconstrained back-facing video sequences in natural scenes. In many cases, classifying gender simply via faces or other biometric cues may fail when the video only contains back-facing people. To address this problem, we propose a novel approach to classify the ...
Keywords: pyramid segmentation, gender classification, back-facing, unconstrained video sequences

6 published by ACM
March 2015 ACM Transactions on Intelligent Systems and Technology (TIST) - Special Section on Visual Understanding with RGB-D Sensors: Volume 6 Issue 2, May 2015
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 4,   Downloads (12 Months): 22,   Downloads (Overall): 183

Full text available: PDFPDF
Bag-of-visual-words (BOVW)-based image representation has received intense attention in recent years and has improved content-based image retrieval (CBIR) significantly. BOVW does not consider the spatial correlation between visual words in natural images and thus biases the generated visual words toward noise when the corresponding visual features are not stable. This ...
Keywords: penalty tree, spatial correlation, Co-TFIDF, high-order predictor, BOVW, Co-Cosine

7
March 2014 Neurocomputing: Volume 128, March, 2014
Publisher: Elsevier Science Publishers B. V.
Bibliometrics:
Citation Count: 7

Feature selection (FS) methods have commonly been used as a main way to select the relevant features. In this paper, we propose a novel unsupervised FS method, i.e., locality and similarity preserving embedding (LSPE) for feature selection. Specifically, the nearest neighbor graph is firstly constructed to preserve the locality structure ...
Keywords: Discriminating information, Transformation matrix, Feature selection, Locality and similarity preserving, Sparse reconstruction

8
December 2009 ROBIO'09: Proceedings of the 2009 international conference on Robotics and biomimetics
Publisher: IEEE Press
Bibliometrics:
Citation Count: 0

In this paper, we present a SIFT based Slope K method which is faster and more robust than the classical SIFT in landmark based localization. First, the slope k value can be used to erase mismatched feature points (outliers) of the two compared images. Second, the y position is determined ...

9
December 2009 ROBIO'09: Proceedings of the 2009 international conference on Robotics and biomimetics
Publisher: IEEE Press
Bibliometrics:
Citation Count: 0

This paper introduces a method of hand-raising gestures detection in indoor environments, using shape and edge features. Past approaches have detected the gestures through recognizing the action for isolated or seated persons. Here, to deal with movements, non-rigidity and partially occlusions of human bodies, the gestures are detected by searching ...

10
December 2009 ROBIO'09: Proceedings of the 2009 international conference on Robotics and biomimetics
Publisher: IEEE Press
Bibliometrics:
Citation Count: 0

The Probabilistic Roadmap method (PRM) has been widely used in the field of robot path planning and based on it, a great number of variants have been developed addressing for different purposes, e.g. the Lazy PRM method, the Dynamic Roadmap (DRM) method, and the Dynamic Bridge Builder method (DBB). In ...

11
December 2009 ROBIO'09: Proceedings of the 2009 international conference on Robotics and biomimetics
Publisher: IEEE Press
Bibliometrics:
Citation Count: 0

Path planning for mobile robots with high degree of freedom (DOF) is an extreme challenge. Although lots of algorithms have focused on the planning of fixed manipulators and mobile robots with low degree of freedom, seldom of them can be employed to deal with high DOF mobile agents. The unpredictable ...

12
October 2009 SMC'09: Proceedings of the 2009 IEEE international conference on Systems, Man and Cybernetics
Publisher: IEEE Press
Bibliometrics:
Citation Count: 0

It is very important for a robot to obverse its environment in real-time and walk without collision in a crowd. This paper presents a motion planning method, based on visual feedback, for safe Human-Robot Interaction (HRI) in dynamic environments. Firstly, in order to improve accuracy of features marching, Scale Invariant ...
Keywords: visual feedback, SIFT, stereo vision, path planning, lazy PRM

13
October 2009 SMC'09: Proceedings of the 2009 IEEE international conference on Systems, Man and Cybernetics
Publisher: IEEE Press
Bibliometrics:
Citation Count: 0

It is still a challenging problem for tracking objects in complex visual situations, such as an object is occluded or the object's color features are very similar to its background. Therefore, a novel visual tracking algorithm is proposed for multiple cues fusion bused on three common cues: color, target position ...
Keywords: multiple cue fusion, visual tracking, CAMSHIFT, ocdusion handling

14
October 2009 SMC'09: Proceedings of the 2009 IEEE international conference on Systems, Man and Cybernetics
Publisher: IEEE Press
Bibliometrics:
Citation Count: 0

With rapid development of information technology, more and more document images are made by scanners. But new problem comes out that many of document images from thick books are warped. It is quite inconvenient for further process on computer. This paper introduces an integrative algorithm on restoring Chinese document images, ...
Keywords: document image, restoring, warped document

15
October 2009 SMC'09: Proceedings of the 2009 IEEE international conference on Systems, Man and Cybernetics
Publisher: IEEE Press
Bibliometrics:
Citation Count: 0

Distortion always appears in document images while scanning thick bound volumes. There are two kinds of distortion for the scanned grayscale images, shadow appears at the volumes' spine area, and warping of the words occurs in the shadow. In this paper, a novel text boundary lines based method for efficient ...
Keywords: restoration, text bounary lines, warped document images, distortion

16
October 2009 SMC'09: Proceedings of the 2009 IEEE international conference on Systems, Man and Cybernetics
Publisher: IEEE Press
Bibliometrics:
Citation Count: 0

Effective background reconstruction is the key for real time traffic flow monitoring. High traffic density and complexity of background scene make reconstruction more difficult. Background estimation based on the median method is imprecise under a complex traffic flow condition. In this paper, a new background estimation method based on the ...
Keywords: block matrix, crossroads, two-dimensional clustering, background reconstruction, intelligent transport system (ITS)

17
October 2009 IROS'09: Proceedings of the 2009 IEEE/RSJ international conference on Intelligent robots and systems
Publisher: IEEE Press
Bibliometrics:
Citation Count: 0

This paper presents a novel planner for manipulators and robots in changing environments. When environments are complicated, it's always difficult to find a completely valid path solution, which is essential for many methods. However, our planner searches for several path segments to make robot move towards its goal as much ...

18
October 2009 IROS'09: Proceedings of the 2009 IEEE/RSJ international conference on Intelligent robots and systems
Publisher: IEEE Press
Bibliometrics:
Citation Count: 0

Although primates can facilely maintain long-duration tracking of an object without infection of occlusion or other near similar distracters, it remains a challenge for computer vision system. Studies in psychology suggest that the ability of primates to focus selective attention on the spatial properties of an object is necessary to ...

19
July 2009 Pattern Recognition Letters: Volume 30 Issue 9, July, 2009
Publisher: Elsevier Science Inc.
Bibliometrics:
Citation Count: 5

Multi-cue integration has been researched extensively for robust visual tracking. Researchers aim to use multiple cues under the probabilistic methods, such as Particle Filtering and Condensation. On the other hand, Color-based Mean-Shift has been addressed as an effective and fast algorithm for tracking color blobs. However, this deterministic searching method ...
Keywords: Adaptive integration, Multi-cue tracking, Mean-Shift

20
October 2008 Pattern Recognition Letters: Volume 29 Issue 13, October, 2008
Publisher: Elsevier Science Inc.
Bibliometrics:
Citation Count: 3

A new skew detection method for complex document images based on robust borderlines extracted from both text and non-text regions is proposed in this paper. First, borderlines are extracted from the borders of large connected components in a document image by using a run length based method. Second, after filtering ...
Keywords: Optimization, Robust borderline, Document analysis, Skew detection, Linear filter



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