method: BreSee OCR2021-07-06
Authors: Tianpeng Li, Linzhi Zhuang, Mengyue Shao, Jie Wu, Jiling Wu
Affiliation: BreSee AI Lab, Zhejiang Sci-Tech University
Description: We modify the SRN network structure and loss function, synthesize a large number of data sets, train SRN and fine tune on the training set, and use a large number of data enhancement operations.
method: H&H Lab2019-04-22
Authors: HUST_VLRGROUP(Hui Zhang, Mingkun Yang, Mengde Xu, Zhen Zhu, Jiehua Yang) & HUAWEI_CLOUD_EI(Jing Wang, Yibin Ye, Shenggao Zhu, Dandan Tu)
Description: We mainly completed the task 2 using CRNN. Different from the content in the paper, we modified the structure of CNN to PVANet-like and used multiple GRU layers. And we adjusted the training strategy to continue to improve the recognition result.
method: CLOVA OCR2019-04-22
Authors: Sungrae Park, Seung Shin, Seonghyeon Kim, Jaeheung Surh, Junyeop Lee, Hwalsuk Lee
Description: Our model consists of a ResNet-based backbone, a sequence model, and an attention-based decoder [1]. The backbone is a combination of the ResNet and SENet(squeeze and excitation network) [2] and the others are based on Baek et al. [1]. We trained the model with our own synthetic datasets by applying virtual adversarial training (VAT) techniques [3]. For this competition, we fine-tuned the model with the training dataset of SROIE. The recognition identified the texts on the detected text boxes by CRAFTS [4].
Date | Method | Recall | Precision | Hmean | |||
---|---|---|---|---|---|---|---|
2021-07-06 | BreSee OCR | 96.78% | 96.92% | 96.85% | |||
2019-04-22 | H&H Lab | 96.35% | 96.52% | 96.43% | |||
2019-04-22 | CLOVA OCR | 94.30% | 94.88% | 94.59% | |||
2019-04-23 | BOE_IOT_AIBD | 87.84% | 86.66% | 87.24% | |||
2019-04-22 | BiLstmCtcIgnoreSpaces-Segment | 83.38% | 87.37% | 85.33% | |||
2019-04-22 | IFLYTEK-textRec_v4 | 80.63% | 81.72% | 81.17% | |||
2019-04-22 | A Text Extraction Method Based on Modified CRNN | 26.33% | 72.53% | 38.63% | |||
2019-04-18 | BiLSTM+ctc | 28.75% | 49.69% | 36.42% | |||
2019-04-16 | VIL | 0.00% | 0.00% | 0.00% |