TVRN: Invertible Neural Networks for Compression-Aware Temporal Video Rescaling

• URL: http://arxiv.org/abs/2605.15579v1
• Date: Fri, 15 May 2026 03:44:14 GMT
• Title: TVRN: Invertible Neural Networks for Compression-Aware Temporal Video Rescaling
• Abstract summary: We propose an end-to-end framework for compression-aware frame-rate rescaling, named TVRN.<n>TVRN regularizes high-frequency information lost during frame-rate downscaling.<n>We extend TVRN to an asymmetric architecture by incorporating compression-aware features learned via a learning-to-rank strategy.
• Score: 29.9685609552061
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: To fit diverse display and bandwidth constraints, high-frame-rate videos are temporally downscaled to low-frame-rate (LFR) and later upscaled, requiring joint optimization for effective frame-rate rescaling. However, existing methods typically link the two operations via training objectives, without fully exploiting their reciprocal nature, which may cause high-frequency information loss. Moreover, they overlook the impact of lossy codecs on LFR videos, limiting real-world applicability. In this work, we propose an end-to-end framework for compression-aware frame-rate rescaling, named TVRN. To regularize high-frequency information lost during frame-rate downscaling, TVRN adopts an invertible architecture that combines a Multi-Input Multi-Output Temporal Wavelet Transform with a high-frequency reconstruction module. To enable end-to-end training through non-differentiable lossy codecs, we design a surrogate network that approximates their gradients. Finally, to improve robustness under various compression levels, we extend TVRN to an asymmetric architecture by incorporating compression-aware features learned via a learning-to-rank strategy. Extensive experiments show that TVRN outperforms existing methods in reconstruction quality under industrial video compression settings. Source code is publicly available at https://github.com/fengxinmin/TVRN_public.

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