My research interests concentrate around image, video and multimedia processing::

• digital image and video processing, compression and transmission,
• visual sensor networks (camera webs),
• stereoscopic and 3-D imaging,
• multidimensional digital signal processing,
• multimedia systems design.

The application focus is on next-generation multimedia services, and, in particular, on the development of models, algorithms and systems for services that are natural (maximum realism of preception), efficient (minimum bandwidth usage), and flexible (adaptable to various needs).

The research is carried by graduate and undergraduate students within Visual Information Processing (VIP) Laboratory. Currently, those students are involved in two main research thrusts:

• Next-Generation Methods for Image Sequence Analysis, Processing, and Transmission
  This research concentrates around the idea that by processing multiple frames of an image sequence jointly, one can achieve not only better results, e.g., more accurate segmentation or improved compression ratio, but also extract qualitatively new information, such as occlusion and newly-exposed area information.
   
• Image Processing and Compression Framework for 3-D Hologram-Like Visual Communications of the Future
  The focus here is on multiview acquisition, compression and enhancement algorithms for automultiscopic 3-D displays, i.e., displays that do not require glasses while providing multiple perspectives to the viewer (look-around). Such displays have recently been introduced on the market and hold a great promise for the future of 3-D visual communications.
   
• Eyewear-free 3-D visualization for biomedical applications
  3-D visualization is an indispensable tool in the analysis of biomedical data. Moreover, in some scenarios such visualization must not use shutter glasses for their visual interference with neighboring 2-D monitors. It is the purpose of this research axis to explore the potential of automultiscopic displays in scientific, and especially biological and medical, applications.