2026-05-31T02:04:30Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/302382026-02-03T10:55:35Zcom_10630_2254col_10630_37953

A new pyramid-based color image representation for visual localization Urdiales-García, Amalia Cristina Domínguez, Miguel De-Trazegnies-Otero, Carmen Lourdes Sandoval-Hernández, Francisco Procesado de imágenes - Técnicas digitales This paper presents a new algorithm to extract a color graph from a real image so that it can be efficiently represented in a compact way. The proposal presents two main novelties. First, a new PCA-based color feature vector has been defined. This vector is resistant against illumination changes, noise and microtextures. Second, the image is segmented by means of a fast, hierarchical split and merge algorithm based on a pyramid structure that implicitly provides a color graph. In order to test the suitability of the proposed representation technique, simple localization experiments have been conducted in different real environments. 2024-02-09T08:55:51Z 2024-02-09T08:55:51Z 2010 journal article C. Urdiales, M. Dominguez, C. de Trazegnies, F. Sandoval, A new pyramid-based color image representation for visual localization, Image and Vision Computing, Volume 28, Issue 1, 2010, Pages 78-91, ISSN 0262-8856, https://doi.org/10.1016/j.imavis.2009.04.014. https://hdl.handle.net/10630/30238 https://doi.org/10.1016/j.imavis.2009.04.014 eng open access Elsevier