Down-up sampling of images is an essential process for spatial scalability of the video coding standard. We propose an efficient down-up sampling method in spatial domain using DC...
The mobile agent technology is an important research area in the scope of code mobility. As part of an agent mission objective, it may exist the necessity of meeting an end-to-end...
This paper examines the role of attacker’s memory in Quantization Index Modulation (QIM) watermarking systems. First we derive the attacker’s noise distribution that maximizes...
Perceptual prefiltering is the process of enhancing relevant portions of an image or of a video, and of simplifying contextual information in order to improve the perceived quali...
Olivier Steiger, Touradj Ebrahimi, Andrea Cavallar...
Video streaming demands high data rates and hard delay constraints, and it raises several challenges on today’s packet-based and best-effort internet. In this paper, we propose ...