Showing papers by "Sid-Ahmed Berrani published in 2013"

Constraint Satisfaction Programming for Video Summarization

Abstract: This paper addresses the problem of automatic video summarization. The proposed solution relies on constraint satisfaction programming (CSP). Summary generation rules are expressed as constraints and the summary is created using the CSP solver given the input video, its audio-visual features and possibly user parameters (like the desired duration). The solution clearly separates production rules from the generation algorithm, which in practice allows users to easily express their constraints and preferences and also to modify them w.r.t. the target application. The solution is extensively evaluated in the context of tennis match summarization.

Audio/visual recurrences and decision trees for unsupervised TV program structuring

Abstract: This paper addresses the problem of unsupervised TV program structuring. Program structuring allows direct and non linear access to the desired parts of a program. Our work addresses the structuring of programs like news, entertainment, shows, magazines... It is based on the detection of audio and visual recurrences. It proposes an effective classification and selection system, based on decision trees, that allows the detection of “separators” among these recurrences. Separators are short audio/visual sequences that delimit the different parts of a program. The decision trees are built based on attributes issued from techniques like applause detection, scenes segmentation, face/speaker detection and clustering. The approach has been evaluated on a 112 hours dataset corresponding to 169 episodes of TV programs.

Triggering an action relative to a flow

Abstract: The method involves obtaining data representing an extract (E) of a flow and a timestamp for restoration of the extract by a restitution device (TV) A triggering instant is obtained according to the timestamp and another timestamp associated with data representing the extract, where the data is obtained from a flow representative of the content An action is triggered at the triggering instant, where the action is a restitution of content complementary to content of the flow during restitution on the restitution device Independent claims are also included for the following: (1) a method for transmitting time information relative to a flow during broadcast of multimedia content (2) a device for triggering an action relative to a flow during representative broadcast of multimedia content and restituted by a restitution device (3) a server (4) a computer program product comprising a set of instructions to implement steps of a method for triggering an action relative to a flow during diffusion and/or a method for transmitting time information relative to the flow during broadcast