CORREA, Iago Lourenço; DREWS, Paulo Lilles Jorge; RODRIGUES, Ricardo Nagel. Combination of Optical Character Recognition Engines for Documents Containing Sparse Text and Alphanumeric Codes. In: CONFERENCE ON GRAPHICS, PATTERNS AND IMAGES (SIBGRAPI), 34. , 2021, Online. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2021 .