Publication
Perceptual Prefiltering for Video Coding
Publications associées (53)
Selected topics on distributed video coding
Distributed Video Coding (DVC) is a new paradigm for video compression based on the information theoretical results of Slepian and Wolf (SW), and Wyner and Ziv (WZ). While conventional coding has a rigid complexity allocation as most of the complex tasks a ...
EPFL2008Balanced multiple description coding in image communications
Latest developments in video coding technology on one side, and a continuous growth in size and bandwidth in lossy networks on the other side, have undoubtedly created a whole new world of multimedia communications. However, nowadays networks, which are be ...
EPFL2008Studying Error Resilience Performance for a Feedback Channel Based Transform Domain Wyner-Ziv Video Codec
Touradj Ebrahimi, Frédéric Dufaux
Wyner-Ziv (WZ) video coding is an emerging video coding paradigm based on two major Information Theory results: the Slepian-Wolf and Wyner-Ziv theorems. One of the most interesting and used WZ video coding architectures makes use of a feedback channel (FC) ...
2007Flexible Motion-Adaptive Video Coding with Redundant Expansions
Pascal Frossard, Pierre Vandergheynst, Adel Rahmoune
This paper presents a highly flexible video coding scheme (MP3D), based on the use of a redundant 3-D spatio-temporal dictionary of functions. Directionality and anisotropic scaling are key ingredients to the spatial components, that form a rich collection ...
2006Distributed coding of Highly correlated image sequences with motion-compensated temporal wavelets
This paper discusses robust coding of visual content for a distributed multimedia system. The system encodes independently two correlated video signals and reconstructs them jointly at a central decoder. The video signals are captured from a dynamic scene ...
2006Low delay video coding
Analogue wireless cameras have been employed for decades, however they have not become an universal solution due to their difficulties of set up and use. The main problem is the link robustness which mainly depends on the requirement of a line-of-sight vie ...
EPFL2006Evaluating Perceptually Prefiltered Video
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 quality or the compression ratio. In this paper, we discuss the results of subjecti ...
SPIE2005Toward sparse and geometry adapted video approximations
Video signals are sequences of natural images, where images are often modeled as piecewise-smooth signals. Hence, video can be seen as a 3D piecewise-smooth signal made of piecewise-smooth regions that move through time. Based on the piecewise-smooth model ...
EPFL2005Semantic Video Analysis for Adaptive Content Delivery and Automatic Description
We present an encoding framework which exploits semantics for video content delivery. The video content is organized based on the idea of main content message. In the work reported in this paper, the main content message is extracted from the video data th ...
2005