Abstract
This paper deals with the use of the segmentation tools and principles presented in [10] and [13] for allowing content-based functionalities. In this framework, means for supervised selection of objects in the scene are proposed. In addition, a technique for object tracking in the context of segmentation-based video coding is presented. The technique is independent of the type of segmentation approach used in the coding scheme. The algorithm relies on a double partition of the image that yields spatially homogeneous regions. This double partition permits to obtain the position and shape of the previous object in the current image while computing the projected partition. In order to demonstrate the potentialities of this algorithm, it is applied in a specific coding scheme so that content-based functionalities, such as selective coding, are allowed.
Résumé
Cet article traite de l’utilisation d’outils de segmentation permettant la mise en place de fonctionnalités liées au contenu. Dans ce cadre, des techniques de sélection supervisée d’objets sont proposées. De plus, une technique de suivi d’objet est présentée. Cette technique est indépendante du type de segmentation utilisée pour le système de codage. L’algorithme repose sur une double partition conduisant ° des régions spatialement homogènes. Cette double partition permet d’obtenir la position et la forme des objets présents dans la trame précédente. L’intérêt de l’algorithme est illustré dans le contexte d’un système de codage sélectif.
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Marcotegui, B., Meyer, F. & MarquÉs, F. Allowing content-based functionalities in segmentation-based coding schemes. Ann. Télécommun. 52, 408–415 (1997). https://doi.org/10.1007/BF02998460
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DOI: https://doi.org/10.1007/BF02998460