Exploring Absolute Differences Arithmetic Operators for Power- and Area-Efficient SAD Hardware Architectures. - Abreu, Brunno A.; Grellert, Mateus; Paim, Guilherme; Rocha, Leandro M. G.; Diniz, Cláudio M.; da Costa, Eduardo A. C.; Bampi, Sergio (Journal of Integrated Circuits & Systems, 2020)