MORAN不规则文本纠正：刷新多个OCR数据集最优算法

小咪咪 2022-03-25 04:22 249阅读 0赞

论文地址：[https://arxiv.org/pdf/1901.03003.pdf][https_arxiv.org_pdf_1901.03003.pdf]

参考文章：[https://mp.weixin.qq.com/s/J5DGF3JRZxk1-fAQSQNvkQ][https_mp.weixin.qq.com_s_J5DGF3JRZxk1-fAQSQNvkQ]

### 一、论文简介 ###

MORAN：针对场景文本识别的不规则文本纠正算法

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTc3MDE2OQ_size_16_color_FFFFFF_t_70][]

MORAN文本识别算法由矫正子网络MORN和识别子网络ASRN组成，在MORN中设计了一种新颖的像素级弱监督学习机制用于不规则文本的形状纠正，大大降低了不规则文本的识别难度。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTc3MDE2OQ_size_16_color_FFFFFF_t_70 1][]

矫正结果：可以看出论文提出的算法在如下数据集上优于目前绝大多数算法。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTc3MDE2OQ_size_16_color_FFFFFF_t_70 2][]

算法局限：

MORAN对变形角度较小的识别较好，当字体变形角度较大时，识别错误。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MTc3MDE2OQ_size_16_color_FFFFFF_t_70 3][]

### 二、代码 ###

[https://github.com/HCIILAB/MORAN\_v2][https_github.com_HCIILAB_MORAN_v2]

[https://github.com/Canjie-Luo/MORAN\_v2][https_github.com_Canjie-Luo_MORAN_v2]

[https_arxiv.org_pdf_1901.03003.pdf]: https://arxiv.org/pdf/1901.03003.pdf
[https_mp.weixin.qq.com_s_J5DGF3JRZxk1-fAQSQNvkQ]: https://mp.weixin.qq.com/s/J5DGF3JRZxk1-fAQSQNvkQ
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[https_github.com_HCIILAB_MORAN_v2]: https://github.com/HCIILAB/MORAN_v2
[https_github.com_Canjie-Luo_MORAN_v2]: https://github.com/Canjie-Luo/MORAN_v2