Radu Dondera

Learn More
We propose an interactive video segmentation system built on the basis of occlusion and long term spatio-temporal structure cues. User supervision is incorporated in a superpixel graph clustering framework that differs crucially from prior art in that it modifies the graph according to the output of an occlusion boundary detector. Working with long temporal(More)
Key requirements of effective distance learning are interactivity among participants and the student's sense of presence in the classroom. This system meets those requirements, letting the instructor perceive remote students' body language and facial expressions as they listen and speak, and letting remote students participate in the on-campus classroom.
We propose a learning-based method for detecting carried objects that generates candidate image regions from protrusion, color contrast and occlusion boundary cues, and uses a classifier to filter out the regions unlikely to be carried objects. The method achieves higher accuracy than state of the art, which can only detect protrusions from the human shape,(More)
We present a motion descriptor for human action recognition where appearance and shape information are unreliable. Unlike other motion-based approaches, we leverage image characteristics specific to human movement to achieve better robustness and lower computational cost. Drawing on recent work on motion recognition with ballistic dynamics, an action is(More)
RBAC or Role-Based Access Control is an approach to restrict system access to authorized users and help in implementing a secure access control for larger databases. MySQL is a popular open source relational database management system (RDBMS) which currently implements MAC and DAC access control mechanisms. We extend the access control policies in MySQL by(More)
The main idea of Blended learning is to overcome some of the disadvantages of traditional classroom interaction of student and instructor. The Blended learning System includes online interactive discussions in addition to the traditional face-to-face classroom training. This online environment enables students and instructors to interact as if they were in(More)
  • 1