DiverAge: Reliable Pluralistic Face Aging with Cross-Age Identity Relation Guidance

• URL: http://arxiv.org/abs/2606.04881v1
• Date: Tue, 02 Jun 2026 13:39:31 GMT
• Title: DiverAge: Reliable Pluralistic Face Aging with Cross-Age Identity Relation Guidance
• Abstract summary: Face aging plays an important role in long-term biometric analysis, cross-age identity verification, and forensic identity analysis.<n>Existing deterministic aging methods can synthesize visually plausible age-progressed faces, but usually lack diversity.<n>We propose textbfDiverAge, a hierarchical pluralistic face aging framework based on diffusion autoencoding.
• Score: 6.349352455259922
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Face aging plays an important role in long-term biometric analysis, cross-age identity verification, and forensic identity analysis. Since the same subject may exhibit multiple plausible appearances at a target age due to genetic, environmental, and lifestyle factors, face aging is inherently a one-to-many generation problem. However, pluralism alone is insufficient for reliable face aging: a model should provide appearance-level candidate diversity within each age group while maintaining sequence-level ordinal reliability across ordered age groups. Existing deterministic aging methods can synthesize visually plausible age-progressed faces, but usually lack stochastic diversity. In contrast, pluralistic aging methods introduce local appearance variations, but often fail to explicitly regulate the identity evolution of the full aging sequence. In this paper, we propose \textbf{DiverAge}, a hierarchical pluralistic face aging framework based on diffusion autoencoding. DiverAge preserves appearance-level diversity through stochastic diffusion decoding and age-conditioned semantic modulation. To improve sequence-level reliability, we introduce a Cross-age Identity Relation Regulator (CARR), an inference-time guidance strategy that jointly denoises multiple target age groups. CARR is guided by a Cross-age Identity Similarity (CIS) prior estimated from real same-identity cross-age pairs, and suppresses excessive cross-age identity drift through one-sided sampling-time guidance without modifying the training objective or introducing extra trainable parameters. Experiments demonstrate that DiverAge improves sequence-level ordinal reliability while maintaining identity preservation, age accuracy, image quality, and appearance-level diversity.

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