An analysis of edge detection as a feature extractor in a hand gesture recognition system based on nearest neighbor. - Regina Lionnie; Ivanna K. Timotius; Iwan Setyawan (ICEEI, 2011)

Curvature Best Basis: A Novel Criterion to Dynamically Select a Single Best Basis as the Extracted Feature for Periocular Recognition. - Regina Lionnie; Catur Apriono; Rifai Chai; Dadang Gunawan (IEEE Access, 2022)

Eyes versus Eyebrows: A Comprehensive Evaluation Using the Multiscale Analysis and Curvature-Based Combination Methods in Partial Face Recognition. - Regina Lionnie; Catur Apriono; Dadang Gunawan (Algorithms, 2022)