SUGIMOTO, Akihiro; KIMURA, Mitsuhiro; MATSUYAMA, Takashi. Detecting human heads with their orientations. ELCVIA Electronic Letters on Computer Vision and Image Analysis, Cerdayola del Vallès, Spain, v. 5, n. 3, p. 133–147, 2005. DOI: 10.5565/rev/elcvia.112. Disponível em: https://elcvia.cvc.uab.cat/article/view/v5-n3-sugimoto-kimura-matsuyama. Acesso em: 5 jun. 2025.