BHOWMICK, Partha; BISWAS, Arindam; BHATTACHARYA, Bhargab B. Thinning-free Polygonal Approximation of Thick Digital Curves Using Cellular Envelope. ELCVIA Electronic Letters on Computer Vision and Image Analysis, Cerdayola del Vallès, Spain, v. 7, n. 2, p. 76–95, 2008. DOI: 10.5565/rev/elcvia.179. Disponível em: https://elcvia.cvc.uab.cat/article/view/v7-n2-bhowmick-biswas-bhattacharya. Acesso em: 5 jun. 2025.