CLEAR: Context-Aware Learning with End-to-End Mask-Free Inference for Adaptive Video Subtitle Removal

• URL: http://arxiv.org/abs/2603.21901v1
• Date: Mon, 23 Mar 2026 12:23:35 GMT
• Title: CLEAR: Context-Aware Learning with End-to-End Mask-Free Inference for Adaptive Video Subtitle Removal
• Abstract summary: Video subtitle removal aims to distinguish text overlays from background content while preserving temporal coherence.<n>Existing diffusion-based methods necessitate explicit mask sequences during both training and inference phases.<n>We present CLEAR, a mask-free framework that achieves truly end-to-end inference through context-aware adaptive learning.
• Score: 27.349697965175384
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Video subtitle removal aims to distinguish text overlays from background content while preserving temporal coherence. Existing diffusion-based methods necessitate explicit mask sequences during both training and inference phases, which restricts their practical deployment. In this paper, we present CLEAR (Context-aware Learning for End-to-end Adaptive Video Subtitle Removal), a mask-free framework that achieves truly end-to-end inference through context-aware adaptive learning. Our two-stage design decouples prior extraction from generative refinement: Stage I learns disentangled subtitle representations via self-supervised orthogonality constraints on dual encoders, while Stage II employs LoRA-based adaptation with generation feedback for dynamic context adjustment. Notably, our method only requires 0.77% of the parameters of the base diffusion model for training. On Chinese subtitle benchmarks, CLEAR outperforms mask-dependent baselines by + 6.77dB PSNR and -74.7% VFID, while demonstrating superior zero-shot generalization across six languages (English, Korean, French, Japanese, Russian, German), a performance enabled by our generation-driven feedback mechanism that ensures robust subtitle removal without ground-truth masks during inference.

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