Diversity-Preserved Distribution Matching Distillation for Fast Visual Synthesis
- URL: http://arxiv.org/abs/2602.03139v1
- Date: Tue, 03 Feb 2026 05:45:25 GMT
- Title: Diversity-Preserved Distribution Matching Distillation for Fast Visual Synthesis
- Abstract summary: Distribution matching distillation (DMD) aligns a multi-step generator with its few-step counterpart to enable high-quality generation under low inference cost.<n>We propose a role-separated distillation framework that explicitly disentangles the roles of distilled steps.<n>We term this approach Diversity-Preserved DMD (DP-DMD), which, despite its simplicity, preserves sample diversity while maintaining visual quality on par with state-of-the-art methods in extensive text-to-image experiments.
- Score: 33.341277146439275
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Distribution matching distillation (DMD) aligns a multi-step generator with its few-step counterpart to enable high-quality generation under low inference cost. However, DMD tends to suffer from mode collapse, as its reverse-KL formulation inherently encourages mode-seeking behavior, for which existing remedies typically rely on perceptual or adversarial regularization, thereby incurring substantial computational overhead and training instability. In this work, we propose a role-separated distillation framework that explicitly disentangles the roles of distilled steps: the first step is dedicated to preserving sample diversity via a target-prediction (e.g., v-prediction) objective, while subsequent steps focus on quality refinement under the standard DMD loss, with gradients from the DMD objective blocked at the first step. We term this approach Diversity-Preserved DMD (DP-DMD), which, despite its simplicity -- no perceptual backbone, no discriminator, no auxiliary networks, and no additional ground-truth images -- preserves sample diversity while maintaining visual quality on par with state-of-the-art methods in extensive text-to-image experiments.
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