Kleber Jacques Ferreira de Souza

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This paper addresses gradual transition detection which is part of video segmentation problem, and consists in identifying the boundary between consecutive shots. In this work, we propose an approach to cope with gradual transition detection in which we define and use a new dissimilarity measure based on the size of the maximum cardinality matching(More)
Hierarchical video segmentation provides region-oriented scale-space, i.e., a set of video segmentations at different detail levels in which the segmentations at finer levels are nested with respect to those at coarser levels. In this work, the hierarchical video segmentation is transformed into a graph partitioning problem in which each part corresponds to(More)
This paper addresses transition detection which consists in identifying the boundary between consecutive shots. In this work, we propose an approach to cope with transition detection in which we define and use a new dissimilarity measure based on the size of the maximum cardinality matching calculated using a bipartite graph with respect to a sliding(More)
In this paper, we present a simple approach to streaming video segmentation based on an observation scale. Here, we transform the streaming video segmentation into a graph partitioning problem in which each part corresponds to one region of the video; furthermore, we apply a simple method for merging the segmentations of two consecutive blocks to achieve(More)
In this paper, we propose a new approach for color image simplification in order to improve flame pixel classification. The fire detection performance depends critically on the performance of the flame pixel classifier. Color image simplification is the process of simplifying an image in order to decrease the number of colors while preserving, as much as(More)
In this paper, we present an approach to streaming graph-based hierarchical video segmentation by simple label propagation. Here, we transform the streaming video segmentation into a graph partitioning problem in which each part corresponds to one region of the video; furthermore, we apply a simple method for merging the segmentations of two consecutive(More)
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