105 views124 votes16 years 6 months ago ICIP 2003»
We present an improved, prescient, scheme to deliver pre-encoded video streams at very low latency. We dynamically manage the prediction dependency for a group of packets using a ...
There are a number of useful methods for creating high-quality video or still images from a lower quality video source. The best of these involve motion compensating a number of vi...
166 views126 votes16 years 6 months ago CVPR 2004»
This paper presents new results in the field of video coding and compression using 3D information. Contrary to prior art in 3D model-based coding where 3D models have to be known,...
155 views150 votes16 years 6 months ago ICIP 2002»
This paper presents an extensive statistical study and analysis of the effects of channel delays in the current (best-effort) Internet on underflow events in MPEG-4 video streamin...
SP-frame is a new picture type supported by H.264. The traditional usage of SP-frames is for switching between different compressed bit-streams. In this paper, we proposed and eva...
320 views169 votes14 years 8 months ago ICASSP 2011»
In this paper, a no reference bit stream model for quality assessment of SD and HD H.264/AVC video sequences based on packet loss visibility is proposed. The method considers the ...
Approximately 2 degrees in our 140 degree vision span has sharp vision. Many researchers have been fascinated by the idea of eyetracking integrated perceptual compression of an im...
We study the application of Unequal Loss Protection (ULP) algorithms to motion-compensated video over lossy packet networks. In particular, we focus on streaming video applications...
152 views144 votes15 years 10 months ago ICMCS 2005»
We propose the use of attentional cascades based on the DCT and motion information contained in an MPEG coded stream. An attentional cascade is a sequence of very efficient class...
The Digital Systems and Media Computing Laboratory (DSMC Lab) was established in the end of 2002 and is located in Patras, Greece. DSMC operates under the School of Sciences and Te...