System for caption text extraction on a hierarchical region-based image representation
English: This work presents a technique for detecting caption text for indexing purposes. This technique is to be included in a generic indexing system dealing with other semantic concepts. The various object detection algorithms are required to share a common image description which is a hierarchic...
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2011 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2099.1/12573 |
| Acceso en línea: | https://hdl.handle.net/2099.1/12573 |
| Access Level: | acceso abierto |
| Palabra clave: | Three-dimensional display systems Image processing Caption text BPT Text recognition Visualització tridimensional (Informàtica) Imatges -- Processament Àrees temàtiques de la UPC::So, imatge i multimèdia::Creació multimèdia::Imatge digital |
| Sumario: | English: This work presents a technique for detecting caption text for indexing purposes. This technique is to be included in a generic indexing system dealing with other semantic concepts. The various object detection algorithms are required to share a common image description which is a hierarchical region-based image model. Caption text objects are detected combining texture and geometric features, which are estimated using wavelet analysis and taking advantage of the region-based image model, respectively. Analysis of the region hierarchy provides the final caption text objects. |
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