sberbank-ai/school_notebooks_RU

School Notebooks Dataset

The images of school notebooks with handwritten notes in Russian.

The dataset annotation contain end-to-end markup for training detection and OCR models, as well as an end-to-end model for reading text from pages.

Annotation format

The annotation is in COCO format. The annotation.json should have the following dictionaries:

• annotation["categories"] - a list of dicts with a categories info (categotiy names and indexes).
• annotation["images"] - a list of dictionaries with a description of images, each dictionary must contain fields:
  • file_name - name of the image file.
  • id for image id.
• annotation["annotations"] - a list of dictioraties with a murkup information. Each dictionary stores a description for one polygon from the dataset, and must contain the following fields:
  • image_id - the index of the image on which the polygon is located.
  • category_id - the polygon’s category index.
  • attributes - dict with some additional annotation information. In the translation subdict you can find text translation for the line.
  • segmentation - the coordinates of the polygon, a list of numbers - which are coordinate pairs x and y.