GHARP: Real-Time Gaussian Head Animation from Large-Scale Reconstruction Prior

Apple researchers have introduced GHARP, a method for real-time 3D human head animation that functions using only a few input images and a driving expression signal. Unlike existing techniques that rely on restrictive parametric face models, this approach reconstructs identity and motion independently to support complex expressions and accessories like headwear. This advancement allows for more flexible and realistic talking avatars without the limitations typically imposed by standardized facial geometry models.