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Over the past decades, a multitude of different brain source imaging algorithms have been developed to identify the neural generators underlying the surface electroencephalography measurements. While most of these techniques focus on determining the source positions, only a small number of recently developed algorithms provides an indication of the spatial extent of the distributed sources. In a recent...
The efficiency of a video coding scheme should be defined as the video quality achieved for a given bit-rate. The quality refers here to the subjective quality perceived by the final user. This is the only valid criteria, and it involves the user vision properties. Therefore, in order to optimize this perceived video quality, a new perceptual coding scheme is proposed taking into account the Human...
Identifying violent scenes in a movie may be of high interest as soon as the associated content has to be shown to a specific audience, as children for instance. However, defining what a violent scene is as well as extracting the violent excerpts from the only audiovisual cue are two hard tasks. In this article, we propose a pilot study to evaluate the interest of an approach based on the use of the...
This paper addresses the issue of video compression within professional studio environments. In particular, the study concerns the degradation of the video quality in the case of successive encoding/decoding operations in the presence of pixel shifting to reflect some processing that may occur during the production workflow. The three codecs currently discussed within the professional community have...
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