Torbjørn EltoftRui J. P. de FigueiredoIllumination control as a means of enhancing image features in active vision systems.1520-153019954IEEE Trans. Image Process.11https://doi.org/10.1109/83.469933https://www.wikidata.org/entity/Q52353482db/journals/tip/tip4.html#Eltoftd95