TFRNet: A Text-Focused Snow Removal Network for Scene Text Recognition
摘要
Current scene text recognition methods perform well on clear images but face challenges under adverse weather conditions such as snow. Although image desnowing can serve as a preprocessing technique, existing desnowing models primarily target natural scenes and fail to account for text-specific characteristics, resulting in limited effectiveness for text image restoration. To address this, we propose Text-Focused Snow Removal Network (TFRNet), which incorporates a dedicated snow removal module and connects the restoration and recognition modules through an end-to-end framework to enhance text recognition performance in snowy environments. The restoration module achieves text structure perception by fusing global and local features. Additionally, we design a Multi-Scale Sequential Residual Attention Block (MSRAB), which enables us to build a correlation in the fore-and-aft characters. Experimental results demonstrate that TFRNet significantly improves text recognition performance in snowy conditions and achieves superior performance on both synthetic and real-world datasets.