arXiv:2608.29970cs.CV2026-09

通过置信度融合与长词修正,提升艺术文字识别准确率。

Confidence-Aware Ensemble and Long-Word Refinement for Artistic Text Recognition

论文配图:Confidence-Aware Ensemble and Long-Word Refinement for Artistic Text Recognition
图 1 · 摘自论文原文
  • 用置信度筛选分歧位置,融合多个模型预测结果
  • 在WordArt-V1.5测试集上达89.90%准确率,提升1.77个百分点
  • 针对长词设计纠错模块,显著改善长词识别效果

艺术文字识别(ATR)因字体装饰性强、排版弯曲、字符形似物体、背景杂乱及严重扭曲而极具挑战。本文以WordArt-V1.5为标准化基准,评估现有场景与艺术文字识别器在统一协议下的表现。提出一种置信度感知的集成方法,将微调后的SVTRv2、PARSeq和MAERec模型进行融合,通过最小化分歧位置的置信度选择预测结果,聚焦于区分不同假设的关键字符。针对长词中单个字符错误即导致整体失效的问题,引入基于Needleman-Wunsch对齐与词典引导的针对性修正阶段。在WordArt-V1.5 Test B数据集上,系统达到89.90%的词级识别准确率,优于最佳单个微调模型1.77个百分点;长词子集提升2.72个百分点。最后的错误分析显示,48.8%的错误源于标注问题、视觉模糊或不可读样本,凸显诊断性报告对今后ATR基准与模型评估的价值。代码已开源。

原文摘要 · Abstract (English)

Artistic Text Recognition (ATR) remains challenging because word images often combine decorative fonts, curved layouts, object-like characters, clutter, and severe distortions. This paper studies WordArt-V1.5 as a standardized benchmark for this setting and evaluates recent scene and artistic text recognizers under a common protocol. We propose a confidence-aware ensemble that combines SVTRv2, PARSeq, and MAERec after fine-tuning on the official training split. The ensemble selects predictions using the minimum confidence over disagreement positions, emphasizing characters that separate competing hypotheses. For long words, where a single character error can invalidate the whole prediction, we add a targeted refinement stage based on Needleman-Wunsch alignment and lexicon-guided correction. On the WordArt-V1.5 Test B split, the proposed system reaches 89.90% Word Recognition Accuracy, improving the best individual fine-tuned model by 1.77 percentage points. The long-word refinement produces a modest global gain, but improves the targeted long-word subset by 2.72 percentage points. Finally, an error analysis of all remaining mistakes shows that 48.8% are associated with labeling issues, visual ambiguity, or illegible samples, highlighting the value of diagnostic reporting for future ATR benchmarks and models. Our source code is available at https://github.com/lucas-azdias/Artistic-Text-Recognition/.

文字识别艺术文字集成学习长词修正

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