Head Similarity: Modeling Structured Whole-Head Appearance Beyond Face Recognition

ArXi:2605.07766v1 Announce Type: new Many vision applications require identity consistency beyond strict biometric recognition, especially under non-frontal views or when facial cues are missing. However, conventional face recognition models enforce intra-identity invariance, collapsing appearance variations such as hairstyle or styling changes into a single representation, limiting their use in appearance-sensitive scenarios. To address this limitation, we