TY - RPRT TI - Bubbles: a unifying framework for low-level statistical properties of natural image sequences. AU - Aapo Hyvärinen AU - Jarmo Hurri AU - Jaakko Väyrynen PY - 2003 DO - 10.1364/josaa.20.001237 UR - https://pubmed.ncbi.nlm.nih.gov/12868630/ ID - 12868630 ER -