InstaVSR: Taming Diffusion for Efficient and Temporally Consistent Video Super-Resolution

• URL: http://arxiv.org/abs/2603.26134v1
• Date: Fri, 27 Mar 2026 07:33:13 GMT
• Title: InstaVSR: Taming Diffusion for Efficient and Temporally Consistent Video Super-Resolution
• Abstract summary: InstaVSR is a lightweight diffusion framework for efficient video super-resolution.<n>It processes a 30-frame video at 2K$times$2K resolution in under one minute with only 7 GB of memory usage.
• Score: 27.629863377761527
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Video super-resolution (VSR) seeks to reconstruct high-resolution frames from low-resolution inputs. While diffusion-based methods have substantially improved perceptual quality, extending them to video remains challenging for two reasons: strong generative priors can introduce temporal instability, and multi-frame diffusion pipelines are often too expensive for practical deployment. To address both challenges simultaneously, we propose InstaVSR, a lightweight diffusion framework for efficient video super-resolution. InstaVSR combines three ingredients: (1) a pruned one-step diffusion backbone that removes several costly components from conventional diffusion-based VSR pipelines, (2) recurrent training with flow-guided temporal regularization to improve frame-to-frame stability, and (3) dual-space adversarial learning in latent and pixel spaces to preserve perceptual quality after backbone simplification. On an NVIDIA RTX 4090, InstaVSR processes a 30-frame video at 2K$\times$2K resolution in under one minute with only 7 GB of memory usage, substantially reducing the computational cost compared to existing diffusion-based methods while maintaining favorable perceptual quality with significantly smoother temporal transitions.

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