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Author

Matthieu Cord

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Preprint Aug 2026

JoLT: Joint Latent Trajectories for Context-Guided High-Resolution Tiled Generation

To generate an image, JoLT uses two streams that jointly denoise LR and HR latent images at each sampling step, and interconnect both branches to jointly integrate their information.

Mathis Koroglu, Guillaume Jeanneret, Hugo Caselles-Dupré et al. · 0 citations
Preprint Aug 2026

Spatially-Grounded Text-to-Video Generation via Inference-Time Gradient-Free Optimization

This work presents Gradient-free Analytical Trajectory Optimization Video Generation (GATO-Vid), a novel training-free and gradient-free approach for precise spatial guidance that significantly outperforms existing baselines in localization accuracy while introducing minimal computational overhead.

Guillaume Jeanneret, Mathis Koroglu, H. Caselles-Dupré et al. · 0 citations
Jul 2026

DiMaS: Distribution Matching for Steering Vision-Language-Action Models

DiMaS is proposed, a Distribution-Matching Steering strategy tailored to flow-matching VLAs, which transports between representation distributions rather than shifting along a fixed direction, and it effectively controls behavior across two state-of-the-art VLAs.

Pegah Khayatan, Sara Meziane, Jayneel Parekh et al. · 0 citations

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