2026-04-05T10:53:17Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/853882025-07-17T13:14:37Zcom_2072_1033col_2072_452950

Feature-preserving downsampling for medical images Díaz García, Jesús Brunet Crosa, Pere Navazo Álvaro, Isabel Pérez, Frederic Vázquez Alcocer, Pere Pau Àrees temàtiques de la UPC::Informàtica::Infografia Three dimensional imaging in medicine Rendering (Computer graphics) Imatges tridimensionals en medicina In the medical imaging field, interactive direct volume rendering of large volume datasets is a challenging task. Multi-resolution techniques deal with this problem by downsampling the original dataset to produce coarser representations. We present an evaluation of different downsampling filters with respect to their effectiveness at preserving details of the original dataset. Moreover, we propose a new Gaussian-based filter that produces quality lower-resolution representations and preserves small features that are prone to disappear. Peer Reviewed Postprint (author's final draft) 2015 Conference lecture Open Access European Association for Computer Graphics (Eurographics)