I am interested in both general methodologies and real-life applications of the following fields:
• Computer vison, image and video understanding;
• AI, statistical inference and learning;
• Computer graphics and computer animation;
• Image processing and pattern recognition;
• Human vision and biologically motivated vision.

• Object tracking and association from a network of video cameras for wide-area surveillance.
• Human segmentation and tracking in monocular video streams:
  • Segmentation and tracking of multiple humans in complex situations where people move in a small group, have inter-occlusion, cast shadows, etc.
  • Stochastic segmenation of multiple humans in crowded situations.
  • Tracking of multiple humans in crowded situtations.
• A tracking as recognition framework to track human motion (an example on human locomotion).
• A flexible method to calibrate a (surveillance) camera.
• A language-based representation for spatial visual events.
• Learning highly structured motion model (concept) of human motion.
• Tracking human arms in 3D from monocular video stream.
• Car detection in aerial images.

• Tao Zhao, Model-based Segmentation and Tracking of Multiple Humans in Complex Situations, PhD dissertation, Computer Science Department, University of Southern California, Dec, 2003. [PDF]

Journal:

• Tao Zhao, Ram Nevatia, Tracking Multiple Humans in Complex Situations, to appear in IEEE trans. PAMI, 2004.
• Tao Zhao, Ram Nevatia, Car Detection in Low Resolution Aerial Images, Image and Vision Computing Journal, vol.21, no.8, August 2003, pp. 693-703. [PDF]

Conference:

• T. Zhao, R. Nevatia, Tracking Multiple Humans in Crowded Environment, Proc IEEE Conf on Computer Vision and Pattern Recognition (CVPR'04), to appear. [PDF]
• Ram Nevatia, Tao Zhao, Somboon Hongeng, Hierarchical Language-based Representation of Events in Video Streams, EVENT(IEEE Workshop on Event Mining)03 [PDF]
• Tao Zhao, Ram Nevatia, Bayesian Human Segmentation in Crowded Situations, CVPR03. [PDF] [Abstract&Results]
• Tao Zhao, Ram Nevatia, Stochastic Human Segmentation from a Static Camera, WMVC(IEEE Workshop on Motion and Video Computing)02. [PDF] [Abstract&Results]
• Tao Zhao, Ram Nevatia, 3D Tracking of Human Locomotion: a Tracking as Recognition Approach, ICPR02. [PDF] [Abstract&Results]
• Fengjun Lv, Tao Zhao, Ram Nevatia, Self-Calibration of a Camera from Video of a Walking Human, ICPR02. [PDF] [Abstract&Results]
• Tao Zhao, Ram Nevatia, Fengjun Lv, Segmentation and tracking of multiple humans in complex situations, CVPR2001. [PDF] [Abstract&Results]
• Tao Zhao, Tianshu Wang, Harry Shum, Learning highly structured motion model for 3D human tracking, ACCV2002. [PDF(final version)] [PDF(longer review version)] [Abstract&Results]
• Tao Zhao, Ram Nevatia, Car detection in low resolution aerial image, ICCV2001. [PDF] [Abstract&Results]