个人信息 Personal Information 
  
 刘志 研究员

上海大学 通信与信息工程学院

通信地址：上海市延长路149号159信箱        邮编：200072

办公室：上海市延长路149号行健楼1214室   电话：021-56331419

电子邮件：liuzhi AT staff.shu.edu.cn

个人主页：http://blog.lehu.shu.edu.cn/zliu/
 
  

 我的相册 
  
  
  

 学术经历 Academic Experience 
  
     1999年和2002年在天津大学分别获得工学学士和工学硕士学位，2005年在上海交通大学图像处理与模式识别研究所获得工学博士学位。先后在英国Brunel大学、香港中文大学和法国INRIA-IRISA访问研究。主持完成了国家自然科学基金项目、上海市青年科技启明星计划项目、上海市科委项目、上海市教委项目、华为公司开发项目等10余项科研项目。已发表论文90余篇，累计被引用700余次（Google学术搜索），SCI引用200余次；出版专著1部；授权发明专利9项。现为中国电子学会高级会员和IEEE会员，担任IEEE汇刊等10余种国际期刊的审稿人以及PCM等多个国际学术会议的技术委员会委员。曾获上海市技术发明一等奖（2011）和上海市科技进步二等奖（2004、2011）。
 
  

 研究兴趣 Research Interests 
  
 图像/视频分割、视觉显著性模型、对象分割/检测/跟踪、视频编码、图像/视频缩放、流媒体传输、多媒体通信系统。
 
  

 讲授课程 Teaching Courses 
  
 本科生课程：

信号与系统A(1)
信号与系统A(2)
数字图象压缩编码与多媒体通信
研究生课程：

多媒体信息处理与编码
信息新技术讲座
 
  

 代表性论文 Representative Publications 
  
 

[1] H. Du, Z. Liu*, J. Jiang, and L. Shen, “Stretchability-aware block scaling for image retargeting,” Journal of Visual Communication and Image Representation, to appear.
[2] Z. Liu, O. Le Meur, S. Luo, and L. Shen, “Saliency detection using regional histograms,” Optics Letters, vol. 38, no. 5, pp. 700-702, Mar. 2013.
[3] L. Shen, Z. Liu, X. Zhang, W. Zhao, and Z. Zhang, “An effective CU size decision method for HEVC encoders,” IEEE Transactions on Multimedia, vol. 15, no. 2. pp. 465-470, Feb. 2013.
[4] L. Shen, Z. Zhang, and Z. Liu, “Inter mode selection for depth map coding in 3D video,” IEEE Transactions on Consumer Electronics, Vol. 58, no. 3, pp. 926-931, Aug. 2012.
[5] Z. Liu, R. Shi, L. Shen, Y. Xue, K. Ngan, and Z. Zhang, “Unsupervised salient object segmentation based on kernel density estimation and two-phase graph cut,” IEEE Transactions on Multimedia, vol. 14, no. 4, pp. 1275-1289, Aug. 2012.
[6] R. Shi, Z. Liu*, H. Du, X. Zhang, and L. Shen, “Region diversity maximization for salient object detection,” IEEE Signal Processing Letters, vol. 19, no. 4, pp. 215-218, Apr. 2012.
[7] L. Shen, Z. Liu, and Z. Zhang, “A novel H.264 rate control algorithm with consideration of visual attention,” Multimedia Tools and Applications, doi: 10.1007/s11042-011-0893-z, Oct. 2011.
[8] L. Shen, Z. Liu, P. An, R. Ma, and Z. Zhang, “Low-complexity mode decision fr MVC,” IEEE Transactions on Circuits and Systems for Video Technology, vol. 21, no. 6, pp. 837-843, Jun. 2011.
[9] Y. Xue, Z. Liu*, and R. Shi, “Saliency detection using multiple region-based features,” Optical Engineering, vol. 50, no. 5, pp. 057008, May 2011.
[10] Z. Liu, Y. Xue, H. Yan, and Z. Zhang, “Efficient saliency detection based on Gaussian models,” IET Image Processing, vol. 5, no. 2, pp. 122-131, Mar. 2011.
[11] Z. Liu, L. Shen, and Z. Zhang, “Unsupervised image segmentation based on analysis of binary partition tree for salient object extraction,” Signal Processing, vol. 91, no. 2, pp. 290-299, Feb. 2011.
[12] L. Shen, Y. Sun, Z. Liu, and Z. Zhang, “Efficient SKIP mode detection for coarse grain quality scalable video coding,” IEEE Signal Processing Letters, vol. 17, no. 10, pp. 887-890, Oct. 2010.
[13] L. Shen, Z. Liu, P. An, R. Ma, and Z. Zhang, “Fast mode decision for scalable video coding utilizing spatial and interlayer correlation,” Journal of Electronic Imaging, vol. 19, no. 3, pp. 033010, Aug. 2010.
[14] L. Shen, Z. Liu, T. Yan, Z. Zhang, and P. An, “View-adaptive motion estimation and disparity estimation for low complexity multiview video coding,” IEEE Transactions on Circuits and Systems for Video Technology, vol. 20, no. 6, pp. 925-930, Jun. 2010.
[15] Z. Liu, W. Li, L. Shen, Z. Han, and Z. Zhang, “Automatic segmentation of focused objects from images with low depth of field,” Pattern Recognition Letters, vol. 31, no. 7, pp. 572-581, May 2010.
[16] L. Shen, Z. Liu, T. Yan, Z. Zhang, and P. An, “Early SKIP mode decision for MVC using inter-view correlation,” Signal Processing: Image Communication, vol. 25, no. 2, pp. 88-93, Feb. 2010.
[17] Z. Liu, H. Yan, L. Shen, K. Ngan, and Z. Zhang, “Adaptive image retargeting using saliency-based continuous seam carving,” Optical Engineering, vol. 49, no. 1, pp. 017002, Jan. 2010.
[18] L. Shen, Z. Liu, S. Liu, Z. Zhang, and P. An, "Selective disparity estimation and variable size motion estimation based on motion homogeneity for multi-view coding," IEEE Transactions on Broadcasting, vol. 55, no. 4, pp. 761-766, Dec. 2009.
[19] X. Zhang, J. Yang, and Z. Liu, “Foreground segmentation based on tracking,” Optical Engineering, vol. 48, no. 10, pp. 107203, Oct. 2009.
[20] L. Shen, G. Feng, Z. Liu, Z. Zhang, and P. An, “Macroblock-level adaptive search range algorithm for motion estimation in multiview video coding,” Journal of Electronic Imaging, vol. 18, no. 3, pp. 033003, Jul. 2009.
[21] L. Shen, Z. Liu, Z. Zhang, and X. Shi, "Selective VS-MRF-ME and intra coding in H.264 based on spatiotemporal continuity of motion field,” Signal Processing: Image Communication, vol. 24, no. 5, pp. 405-414, May 2009.
[22] X. Zhang, J. Yang, and Z. Liu, “Performance evaluation of foreground modeling in moving foreground segmentation,” Optical Engineering, vol. 48, no. 3, pp. 030505, Mar. 2009.
[23] Z. Liu, L. Shen, and Z. Zhang, “An efficient intermode decision algorithm based on motion homogeneity for H.264/AVC,” IEEE Transactions on Circuits and Systems for Video Technology, vol. 19, no. 1, pp. 128-132, Jan. 2009.
[24] L. Shen, Z. Liu, Z. Zhang, and X. Shi, “Frame-level bit allocation based on incremental PID algorithm and frame complexity estimation,” Journal of Visual Communication and Image Representation, vol. 20, no. 1, pp. 28-34, Jan. 2009.
[25] L. Shen, Z. Liu, and Z. Zhang, "Fast multiframe selection algorithm based on spatial-temporal characteristics of motion field," Journal of Electronic Imaging, vol. 17, no. 4, pp. 043004, Dec. 2008.
[26] L. Shen, Z. Liu, Z. Zhang, and X. Shi, “Fast inter mode decision using spatial property of motion field,” IEEE Transactions on Multimedia, vol. 10, no. 6, pp. 1208-1214, Oct. 2008.
[27] X. Zhang, J. Yang, Z. Liu, and X. Wang, “Segmenting foreground from similarly colored background,” Optical Engineering, vol. 47, no. 7, pp. 077002, Jul. 2008.
[28] L. Shen, Z. Liu, Z. Zhang, L. Wang, and G. Wang, “Novel intermode decision algorithm in H.264/AVC,” Journal of Electronic Imaging, vol. 17, no. 1, pp. 013006, Mar. 2008.
[29] L. Shen, Z. Liu, Z. Zhang, and G. Wang, “An adaptive and fast multiframe selection algorithm for H.264 video coding,” IEEE Signal Processing Letters, vol. 14, no. 11, pp. 836-839, Nov. 2007.
[30] L. Shen, Z. Zhang, Z. Liu, and W. Zhang, “An adaptive and fast fractional pixel search algorithm in H.264,” Signal Processing, vol. 87, no. 11, pp. 2629-2639, Nov. 2007.
[31] L. Shen, Z. Liu, Z. Zhang, and X. Shi, “Rate control based on incremental Proportional-Integral-Differential algorithm,” Optical Engineering, vol. 46, no. 7, pp. 077002, Jul. 2007.
[32] Z. Liu, Y. Lu, and Z. Zhang, “Real-time spatiotemporal segmentation of video objects in the H.264 compressed domain,” Journal of Visual Communication and Image Representation, vol. 18, no. 3, pp. 275-290, Jun. 2007.
[33] Z. Liu, Z. Zhang, and L. Shen Liquan, “Moving object segmentation in the H.264 compressed domain,” Optical Engineering, vol. 46, no. 1, pp. 017003, Jan. 2007.
[34] N. Peng, J. Yang, and Z. Liu, “Performance analysis for tracking of variable scale objects using mean-shift algorithm,” Optical Engineering, vol. 44, no. 7, pp. 070505, Jul. 2005.
[35] Z. Liu, J. Yang, and N. Peng, “An efficient face segmentation algorithm based on binary partition tree,” Signal Processing: Image Communication, vol. 20, no. 4, pp. 295-314, Apr. 2005.
[36] Z. Liu, J. Yang, and N. Peng, “Semi-automatic video object segmentation using seeded region merging and bidirectional projection,” Pattern Recognition Letters, vol. 26, no. 5, pp. 653-662, Apr. 2005.
[37] N. Peng, J. Yang,and Z. Liu, “Mean shift blob tracking with kernel histogram filtering and hypothesis testing,” Pattern Recognition Letters, vol. 26, no. 5, pp. 605-614, Apr. 2005.
[38] Z. Liu, and J. Yang, “Interactive video object segmentation: Fast seeded region merging approach,” Electronics Letters, vol. 40, no. 5, pp. 302-304, Mar. 2004.
*标注的论文，第一作者为本人指导的研究生。
  
  

 研究生培养 Postgraduate Supervision 
  
 已指导8名硕士研究生顺利毕业，协助指导1名博士研究生顺利毕业。

目前指导6名硕士研究生。