A Model-Based Iterative Method for Caption Extraction in Compressed MPEG Video
Identifieur interne : 000F21 ( Main/Merge ); précédent : 000F20; suivant : 000F22A Model-Based Iterative Method for Caption Extraction in Compressed MPEG Video
Auteurs : Daniel Márquez [Espagne] ; Jesús Besc S [Espagne]Source :
- Lecture Notes in Computer Science [ 0302-9743 ] ; 2007.
Abstract
Abstract: We here describe a method for caption extraction that totally works in the MPEG compressed domain. As opposed to other compressed domain methods; it does not need to refine their results in the pixel domain. It consists of two phases: first, a selection of candidate frames with captions, based on a rigorous statistical design of an AC coefficients mask; second, an extraction of caption boxes from the pre-selected set of candidate frames. Caption extraction relies on a model-based approach to obtaining the caption mask, robust enough to avoid the use of any subsequent refinement.
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DOI: 10.1007/978-3-540-77051-0_9
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<front><div type="abstract" xml:lang="en">Abstract: We here describe a method for caption extraction that totally works in the MPEG compressed domain. As opposed to other compressed domain methods; it does not need to refine their results in the pixel domain. It consists of two phases: first, a selection of candidate frames with captions, based on a rigorous statistical design of an AC coefficients mask; second, an extraction of caption boxes from the pre-selected set of candidate frames. Caption extraction relies on a model-based approach to obtaining the caption mask, robust enough to avoid the use of any subsequent refinement.</div>
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