We propose a quad-tree scheme for obtaining sub-pixel estimates of interframe motion in the frequency domain. Our scheme is based on phase correlation and uses motion compensated ...
Abstract— This paper analyzes transmission-error induced distortion in decoded video. A recursion model is derived that relates the distortion in successive P-frames. The model t...
In this paper, we propose a novel system, Video Booklet, which enables efficient and nature video browsing and searching. In the system, a set of selected thumbnails excerpted fro...
Head pose estimation is a research area which has many applications, e.g. in human computer interfaces design or in the analysis of people’s focus-of-attention. The paper addres...
Given a multichannel loudspeaker system, the selection of the crossover frequency between the sub-woofer and the satellite speakers is important for accurate (i.e., distortionfree...
The lack of eye contact in video conference degrades the user’s experience. This problem has been known and studied for many years. There are hardware-based solutions to the eye...
In this paper, we present an object tracking algorithm for the low-frame-rate video in which objects have fast motion. The conventional mean-shift tracking fails in case the reloc...
We describe a compensation method for real-time multimedia streaming to improve the user-perceived quality of video. Based on TCP Friendly Rate Control (TFRC), this method takes a...
This paper describes an audio retrieval system,Quebex,that works on raw audio data. The system is able to retrieve songs that are rhythmically and timbrewise similar from a databa...
In this paper we investigate a new architecture for recognizing human group actions in meetings. These group actions provide a basis that enables effective browsing and querying i...