Activity Analysis.

MSR Action Recognition Datasets and Code

Towards Accurate and Robust Cross-Ratio based Gaze Trackers Through Learning From Simulation Jia-Bin Huang, Qin Cai, Zicheng Liu, Narendra Ahuja, Zhengyou Zhang, 8th ACM Symposium on Eye Tracking Research and Applications, 2014 (Best paper award).

Learning Actionlet Ensemble for 3D Human Action Recognition, Jiang Wang, Zicheng Liu, Ying Wu, Junsong Yuan, IEEE Transactions on Pattern Analysis and Machine Intelligence, 2013, accepted.

Animated Pose Templates for Modeling and Detecting Human Actions, Benjamin Yao, Bruce Nie, Zicheng Liu, Song-Chun Zhu, IEEE Transactions on Pattern Analysis and Machine Intelligence, 2013, accepted.

HON4D: Histogram of Oriented 4D Normals for Activity Recognition from Depth Sequences, Omar Oreifej and Zicheng Liu, CVPR 2013.

Tensor-Based Human Body Modeling, Yinpeng Chen, Zicheng Liu, Zhengyou Zhang, CVPR 2013.

Probabilistic Graphlet Cut: Exploring Spatial Structure Cue for Weakly Supervised Image Segmentation, L. Zhang, M. Song, Z. Liu, X. Liu, J. Bu, C. Chen, CVPR 2013.

Semi-Supervised Node Splitting for Random Forest Construction, X. Liu, M. Song, D. Tao, Z. Liu, L. Zhang, J. Bu, C. Chen, CVPR 2013.

Sparse Representation and Learning in Visual Recognition: Theory and Applications, Hong Cheng, Zicheng Liu, Lu Yang, Xuewen Chen, Signal Processing, Vol 93,No. 6, 2013, P1408-1425.

Measuring the Engagement Level of TV Viewers, Javier Hernandez, Zicheng Liu, Geoff Hulten, Dave DeBarr, Kyle Krum, Zhengyou Zhang, 10th IEEE International Conference on Automatic Face and Gesture Recognition, Shanghai, China, April 22-26, 2013.

Combining RGB and Depth Map Features for Human Activity Recognition, Yang Zhao, Zicheng Liu, Lu Yang, Hong Cheng, 2012 APSIPA Annual Summit and Conference, Hollywood, California, Dec 3-6, 2012.

Robust 3D Action Recognition with Random Occupancy Patterns, Jiang Wang, Zicheng Liu, Jan Chorowski, Zhuoyuan Chen, Ying Wu, ECCV 2012.

Propagative Hough Voting for Human Activity Recognition, Gang Yu, Junsong Yuan, Zicheng Liu, ECCV 2012.

Mining Actionlet Ensemble for Action Recognition with Depth Cameras, Jiang Wang Zicheng Liu, Ying Wu, Junsong Yuan, CVPR 2012.

STOP: Space-Time Occupancy Patterns for 3D Action Recognition from Depth Map Sequences, Antonio W. Vieira, Erickson R. Nascimento, Gabriel L. Oliveira, Zicheng Liu, Mario F. M. Campos, 17th Iberoamerican Congress on Pattern Recognition (CIARP), Buenos Aires, Argentina, Sep 3-6, 2012.

A Real-Time System for Dynamic Hand Gesture Recognition with a Depth Sensor, Alexey Kurakin, Zhengyou Zhang, Zicheng Liu, EUSIPCO, 2012.

Action Search by Example using Randomized Visual Vocabularies, Gang Yu, Junsong Yuan, Zicheng Liu, IEEE Transaction on Image Processing, Vol. 22, No. 1, 2012.

Predicting Human Activities using Spatio-Temporal Structure of Interest Points, Gang Yu, Junsong Yuan, Zicheng Liu, ACM Multimedia 2012.

Real-time Human Action Search using Random Forest based Hough Voting, Gang Yu, Junsong Yuan, Zicheng Liu, ACM Multimedia 2011.

Unsupervised Random Forest Indexing for Fast Action Search, Gang Yu, Junsong Yuan, Zicheng Liu, IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2011).

Fast Action Detection via Discriminative Random Forest Voting and Top-K Subvolume Search, Gang Yu, Norberto A. Goussies, Junsong Yuan, Zicheng Liu, IEEE Transactions on Multimedia, No. 3, Vol. 13, 2011.

 Hierarchical Filtered Motion for Action Recognition in Crowded Videos, Yingli Tian, Liangliang Cao, Zicheng Liu, Zhengyou Zhang, IEEE Transactions on Systems, Man, and Cybernetics (C), Vol. 42, No. 3, pp313-323, 2012.

Real World Activity Summary for Senior Home Monitoring, Hong Cheng, Zicheng Liu, Yang Zhao, Guo Ye, IEEE International Conference on Multimedia and Expo (ICME), 2011. Link to the UESTC web site which has more information on the project and the dataset.

Multi-Support Region Image Descriptors and Its Application to Street Landmark Localization, Hong Cheng, Zicheng Liu, Jie Yang, Machine Vision and Applications journal, accepted, 2011.

Discriminative Video Pattern Search for Efficient Action Detection, Junsong Yuan, Zicheng Liu, Ying Wu, IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 33, No. 9, 2011.

Sparsity-based Online Missing Data Recovery Using Overcomplete Dictionary, Di Guo, Zicheng Liu, Xiaobo Qu, Lianfen Huang, Yan Yao, Ming-Ting Sun, IEEE Sensors Journal, accepted, 2011.

TechWare: Video-Based Human Action Detection Resources, Junsong Yuan, Zicheng Liu,  IEEE Signal Processing Magazine, pp 136-139, Vol. 27, No. 5, September 2010.

Cross-dataset Action Detection, Liangliang Cao, Zicheng Liu, Thomas Huang, IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2010), San Francisco, CA, June, 2010.

Efficient Search for Top-k Video Subvolumes for Multi-Instance Action Detection, Norberto A. Goussies, Zicheng Liu, Junsong Yuan, 2010 IEEE International Conference on Multimedia and Expo, Singapore, July 19-23, 2010.

Action Detection Using Multiple Spatio-Temporal Interest Point Features, Liangliang Cao, Yingli Tian, Zicheng Liu, Benjamin Yao, Zhengyou Zhang, Thomas S. Huang, 2010 IEEE International Conference on Multimedia and Expo, Singapore, July 19-23, 2010.

 Real Time Head Pose Tracking from Multiple Cameras with a Generic Model,  Qin Cai, A. Sankaranarayanan, Q. Zhang, Zhengyou Zhang, Zicheng Liu, IEEE International Workshop on Analysis and Modeling of Faces and Gestures (in conjunction with CVPR2010), San Francisco, CA, June, 2010.

Action Recognition Based on A Bag of 3D Points, Wanqing Li, Zhengyou Zhang, Zicheng Liu, IEEE International Workshop on CVPR for Human Communicative Behavior Analysis (in conjunction with CVPR2010), San Francisco, CA, June, 2010.

Sparsity Induced Similarity Measure for Label Propagation, Hong Cheng, Zicheng Liu, Jie Yang, IEEE International Conference on Computer Vision (ICCV) 2009, Kyoto, Japan, Sep. 29-Oct. 2. Slides

Speeding up Spatio-Temporal Sliding-Window Search for Efficient Event Detection in Crowded Videos, Junsong Yuan, Zicheng Liu, Ying Wu, Zhengyou Zhang, 1st ACM International Workshop on Events in Multimedia (EiMM09, in conjunction with ACMMM09), Beijing.

Efficient scale-space sptiotemporal saliency tracking for distorion-free video retargeting, Gang Hua, Cha Zhang, Zicheng Liu, Zhengyou Zhang, Ying Shan. Asian Conference on Computer Vision (ACCV), Sep. 23-27, 2009, Xi'an, China.

Human action recognition with expandable graphical model, Wanqing Li, Zhengyou Zhang, Zicheng Liu, Philip Ogunbona, In "Machine learning  for human motion analysis: theory and practice", IGI Global,  Editors: Liang Wang, Guoying Zhao, Li Cheng. To appear.

Discriminative Subvolume Search for Efficient Action Detection, Junsong Yuan, Zicheng Liu, Ying Wu, IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2009), Miami, Florida, June 22-24, 2009. (****CVPR09 Doctoral Spotlight Award****).  MSR Action Dataset is available for download by following this link.

Expandable Data-Driven Graphical Modeling of Human Actions Based on Salient Postures, Wanqing Li, Zhengyou Zhang, Zicheng Liu, IEEE Transaction on Circuit and Systems for Video Technology (TCSVT), Vol. 18, No. 11, November 2008. pp. 1499-1510.

Graphical Modeling and Decoding of Human Actions, Wanqing Li, Zhengyou Zhang, Zicheng Liu, IEEE International Workshop on Multimedia Signal Processing (MMSP), 2008, Cairns, Queensland, Australia.

A Deformable Local Image Descriptor , Hong Cheng, Zicheng Liu, Nanning Zheng, Jie Yang, 2008 IEEE Conference on Computer Vision and Pattern Recognition (CVPR 2008), Anchorage, Alaska, June 24-26, 2008.

Meta-tag Propagation by Co-training an Ensemble Classifier for Improving Image Search Relevance , Aayush Sharma, Gang Hua, Zicheng Liu, Zhengyou Zhang, First International Workshop on Internet Vision (in conjunction with CVPR), Anchorage, Alaska, June 23, 2008.

Iterative local-global energy minimization for automatic extraction of objects of interest, Gang Hua, Zicheng Liu, Zhengyou Zhang, Ying Wu, IEEE Transaction on Pattern Analysis and Machine Intelligence (TPAMI), Vol. 28, No. 10, October, 2006.

Automatic business card scanning with a camera, Gang Hua, Zicheng Liu, Zhengyou Zhang, Ying Wu, ICIP 2006, Atlanta, Oct. 8-11.