SCANS Data Set - A Reference Data Set for Handwritten Text Detection

# SCANS Data Set

A scientific paper with handwritten annotations as reference data set for handwritten text detection.

The paper is

Sharon Fogel, Hadar Averbuch-Elor, Sarel Cohen, Shai Mazor, Roee Litman; Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recogniti
on (CVPR), 2020, pp. 4324-4333

The annotations were made by two people with different pens. The text is randomly taken from "The Fellowship Of The Ring" by JRR Tolkien.

The documents in folder `images` were scanned with a Canon Pixima TR4550 with 300DPI. The `labels-` folders contain the labels for paragraph, line, and word level in following JSON format:
 

{
 "image_file": "paper-0001.png",  # The corresponding image in folder `images`
 "shape": [                       # The size of the image
   3495,
   2473
 ],
 "properties": [                  # A list of all line bounding boxes (for paragraphs, lines, or words)
   {
     "type": "HWL",               # HWA: handwritten paragraph, HWL: handwritten line, HWW: handwritten word
     "id": "18",
     "points": [                  # The coordinates of the bounding boxes
       [
         1243.87096093748,
         1515.21674083916
       ],
       [
         2149.01588303892,
         1515.21674083916
       ],
       ...
     ]
   },
   ...
 ]
}