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arxiv 2407.02398 v1 pith:2DCJOS4E submitted 2024-07-02 cs.CV

Consistency Flow Matching: Defining Straight Flows with Velocity Consistency

classification cs.CV
keywords flowconsistencyconsistency-fmmatchingvelocityachievingbetterdefining
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Flow matching (FM) is a general framework for defining probability paths via Ordinary Differential Equations (ODEs) to transform between noise and data samples. Recent approaches attempt to straighten these flow trajectories to generate high-quality samples with fewer function evaluations, typically through iterative rectification methods or optimal transport solutions. In this paper, we introduce Consistency Flow Matching (Consistency-FM), a novel FM method that explicitly enforces self-consistency in the velocity field. Consistency-FM directly defines straight flows starting from different times to the same endpoint, imposing constraints on their velocity values. Additionally, we propose a multi-segment training approach for Consistency-FM to enhance expressiveness, achieving a better trade-off between sampling quality and speed. Preliminary experiments demonstrate that our Consistency-FM significantly improves training efficiency by converging 4.4x faster than consistency models and 1.7x faster than rectified flow models while achieving better generation quality. Our code is available at: https://github.com/YangLing0818/consistency_flow_matching

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Cited by 23 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

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  4. Hyper-DP3: Frequency-Aware Right-Sizing of 3D Diffusion Policies for Visuomotor Control

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    cs.LG 2026-04 unverdicted novelty 7.0

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  7. Optimal Transport Q-Learning for Flow Policy Steering and Acceleration

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  8. Fast Image Super-Resolution via Consistency Rectified Flow

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  9. Physical Fidelity Reconstruction via Improved Consistency-Distilled Flow Matching for Dynamical Systems

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  10. Hyper-DP3: Frequency-Aware Right-Sizing of 3D Diffusion Policies for Visuomotor Control

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    Hydra-DP3 achieves SOTA visuomotor performance with under 1% of prior 3D diffusion policy parameters by using frequency analysis to justify a lightweight decoder and two-step DDIM inference.

  12. FlowS: One-Step Motion Prediction via Local Transport Conditioning

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    FlowS achieves state-of-the-art single-step motion prediction on Waymo Open Motion Dataset by using scene-conditioned anchor trajectories and a step-consistent displacement field to make local transport accurate in on...

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  16. MixFlow: Mixed Source Distributions Improve Rectified Flows

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    Mixing unconditional Gaussian noise with a κ-conditioned source during training of rectified flows reduces path curvature, yielding 12% better FID scores and faster sampling than standard rectified flows.

  17. Linearized Coupling Flow with Shortcut Constraints for One-Step Face Restoration

    cs.CV 2026-03 unverdicted novelty 6.0

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  18. Mean Flows for One-step Generative Modeling

    cs.LG 2025-05 unverdicted novelty 6.0

    MeanFlow uses a derived identity between average and instantaneous velocities to train one-step flow models, achieving FID 3.43 on ImageNet 256x256 with 1-NFE from scratch.

  19. FocalPolicy: Frequency-Optimized Chunking and Locally Anchored Flow Matching for Coherent Visuomotor Policy

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  20. FocalPolicy: Frequency-Optimized Chunking and Locally Anchored Flow Matching for Coherent Visuomotor Policy

    cs.RO 2026-05 unverdicted novelty 5.0

    FocalPolicy introduces frequency-optimized chunking and locally anchored flow matching with a foresight composite objective to reduce inter-chunk discontinuities in visuomotor policies.

  21. Fast Image Super-Resolution via Consistency Rectified Flow

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    FlowSR reformulates SR as a rectified flow and applies consistency distillation with HR regularization plus fast-slow scheduling to enable single-step high-quality super-resolution.

  22. Trajectory-Consistent Flow Matching for Robust Visuomotor Policy Learning

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  23. CoLA-Flow Policy: Temporally Coherent Imitation Learning via Continuous Latent Action Flow Matching for Robotic Manipulation

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