{"slug": "horizonrelight-relighting-long-horizon-videos-consistently-via-diffusion", "title": "HorizonRelight: Relighting Long-horizon Videos Consistently via Diffusion Transformers", "summary": "Researchers propose HorizonRelight, a diffusion transformer-based framework that reframes long-horizon video relighting as temporally conditioned latent domain translation, using masked target-domain self-conditioning and warm-start prompting to enforce cross-chunk continuity. Experiments on in-the-wild long-horizon videos show markedly improved temporal consistency, with chunk-boundary artifacts largely reduced and unwanted appearance changes across chunks greatly suppressed.", "body_md": "Diffusion-based video relighting enables controllable relighting from a single input video, but modern video diffusion backbones are trained on short clips and applied to long-horizon videos through chunked sliding-window inference, often causing temporal discontinuities at chunk boundaries. We address this by reframing long-horizon relighting as \\emph{temporally conditioned latent domain translation}. Our framework enforces cross-chunk continuity by propagating target-domain latents across boundaries and makes this behavior learnable using \\emph{masked target-domain self-conditioning}, training the model to continue from temporally masked propagated context. We further introduce \\emph{warm-start prompting} with a relit prompt anchor from a controllable generative model, which establishes the initial target-domain state and creates a general interface for prompt-based relighting. Experiments on in-the-wild long-horizon videos show markedly improved temporal consistency, with chunk-boundary artifacts largely reduced and unwanted appearance changes across chunks greatly suppressed.", "url": "https://wpnews.pro/news/horizonrelight-relighting-long-horizon-videos-consistently-via-diffusion", "canonical_source": "https://research.nvidia.com/publication/2026-08_horizonrelight-relighting-long-horizon-videos-consistently-diffusion", "published_at": "2026-08-14 16:16:34+00:00", "updated_at": "2026-08-14 16:42:44.388922+00:00", "lang": "en", "topics": ["artificial-intelligence", "machine-learning", "generative-ai", "computer-vision"], "entities": ["HorizonRelight"], "alternates": {"html": "https://wpnews.pro/news/horizonrelight-relighting-long-horizon-videos-consistently-via-diffusion", "markdown": "https://wpnews.pro/news/horizonrelight-relighting-long-horizon-videos-consistently-via-diffusion.md", "text": "https://wpnews.pro/news/horizonrelight-relighting-long-horizon-videos-consistently-via-diffusion.txt", "jsonld": "https://wpnews.pro/news/horizonrelight-relighting-long-horizon-videos-consistently-via-diffusion.jsonld"}}