Generating Realistic Forehead-Creases for User Verification via Conditioned Piecewise Polynomial Curves Abhishek Tandon1, Geetanjali Sharma1, Gaurav Jaswal2, Aditya Nigam1, Raghavendra Ramachandra3 1IIT Mandi, India, 2TIH, IIT Mandi, India, 3NTNU, Norway Paper Accepted at WACV 2025 Workshop SynRDinBAS