Demarty, Claire-Hélène (2000) Segmentation et structuration d'un document vidéo pour la caractérisation et l'indexation de son contenu sémantique. PhD thesis Morphologie Mathématique, CMM- Centre de morphologie mathématique, ENSMP p.233.
Abstract
Due to the large amount of multimedia documents either already existing or
produced daily, we are faced with the problem of retrieving information from gigantic
databases for which a purely manual indexing process is currently impossible.
In this
context, it has become necessary to design new techniques if not to extract the whole
semantic content of a given document but at least to produce a first structure of it
automatically.
Dealing only with video documents, this thesis therefore proposes to build automatic
tools that create such a structure in two steps
As a result of the first linear part of the
structuring, the video document is splitted into different entities that go from the scene
to the object, through the shot, the part of shot and the key frame.
The second and
relational step consists in extracting relationships by establishing all kinds of semantic
and syntactic links between the different types of entities.
In addition to being general
and automatic, the tools proposed were elaborated with respect to a precise methodology.
According to this methodology, we only use simple and low level image processing criteria
and in particular these from mathematical morphology.
These criteria when combined
together and also with logical rules of decision already enable us to obtain a structure
which is consistent, efficient and representative of a content with a high semantic level.
The choice of this methodology also leads to a very high speed as our tools work faster
than real time.
These tools are validated through numerous examples and applications
based mainly on television news broadcasts documents.
| Item Type: | PhD Thesis (PhD) |
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| Thesis Supervisor: | Beucher, Serge |
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| Date: | 24 January 2000 |
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| Board of examiners: | Serra, Jean and Labit, Claude and Salembier, Philippe and Joly, Philippe and Ronfard, Rémi and Sanson, Henri and Beucher, Serge |
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| Discipline: | Morphologie Mathématique |
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| Collection (Fonds): | ENSMP |
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| Institution: | ENSMP |
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| Department: | CMM- Centre de morphologie mathématique |
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| Subjects: | 1. Mathematics and Applications |
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| Uncontrolled Keywords: | Analyse image, Image vidéo, Indexation, Segmentation, Sémantique |
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