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vertical_and_multilingual_datasets.en.md

vertical_and_multilingual_datasets.en.md 3.9 KB
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Vertical multi-language OCR dataset

Here we have sorted out the commonly used vertical multi-language OCR dataset datasets, which are being updated continuously. We welcome you to contribute datasets ～

  • Chinese urban license plate dataset
  • Bank credit card dataset
  • Captcha dataset-Captcha
  • multi-language dataset

Chinese urban license plate dataset

  • Data source：CCPD

  • Data introduction: It contains more than 250000 vehicle license plate images and vehicle license plate detection and recognition information labeling. It contains the following license plate image information in different scenes.

    • CCPD-Base: General license plate picture
    • CCPD-DB: The brightness of license plate area is bright, dark or uneven
    • CCPD-FN: The license plate is farther or closer to the camera location
    • CCPD-Rotate: License plate includes rotation (horizontal 20~50 degrees, vertical-10~10 degrees)
    • CCPD-Tilt: License plate includes rotation (horizontal 15~45 degrees, vertical 15~45 degrees)
    • CCPD-Blur: The license plate contains blurring due to camera lens jitter
    • CCPD-Weather: The license plate is photographed on rainy, snowy or foggy days
    • CCPD-Challenge: So far, some of the most challenging images in license plate detection and recognition tasks
    • CCPD-NP: Pictures of new cars without license plates.

  • Download address

Bank credit card dataset

  • Data source: source

  • Data introduction: There are three types of training data

    • 1.Sample card data of China Merchants Bank: including card image data and annotation data, a total of 618 pictures
    • 2.Single character data: including pictures and annotation data, 37 pictures in total.

    • 3.There are only other bank cards, no more detailed information, a total of 50 pictures.

    • The demo image is shown as follows. The annotation information is stored in excel, and the demo image below is marked as

      • Top 8 card number: 62257583
      • Card type: card of our bank
      • End of validity: 07/41
      • Chinese phonetic alphabet of card users: MICHAEL

  • Download address: cmb2017-2.zip

Captcha dataset-Captcha

  • Data source: captcha

  • Data introduction: This is a toolkit for data synthesis. You can output captcha images according to the input text. Use the toolkit to generate several demo images as follows.

  • Download address: The dataset is generated and has no download address.

multi-language dataset(Multi-lingual scene text detection and recognition)

  • Data source: source
  • Data introduction: Multi language detection dataset MLT contains both language recognition and detection tasks.
    • In the detection task, the training set contains 10000 images in 10 languages, and each language contains 1000 training images. The test set contains 10000 images.
    • In the recognition task, the training set contains 111998 samples.
  • Download address: The training set is large and can be downloaded in two parts. It can only be downloaded after registering on the website: source