System for caption text extraction on a hierarchical region-based image representation

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Tutor / Supervisor

Student

Zaytseva, Ekaterina

Document type

Master thesis

Date

2011

rights

Open AccessOpen Access

Publisher

Universitat Politècnica de Catalunya



Abstract

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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