System for caption text extraction on a hierarchical region-based image representation
Tutor / Supervisor
Student
Zaytseva, Ekaterina
Document type
Master thesis
Date
2011
rights
Open Access
Publisher
Universitat Politècnica de Catalunya
UPCommons
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.
