57,645 Images - Vertical OCR Data in Text Scenes

Vertical text scene OCR data

OCR image data

OCR data

OCR data set

OCR annotation

OCR acquisition

OCR data processing

OCR rewriting data

57,645 Images - Vertical OCR Data in Text Scenes. The collecting scenes of this dataset include street scenes, plaques, billboards, posters, decorations, art lettering, magazine covers etc. The language distribution includes Chinese and a few English. In this dataset, vertical -level rectangular bounding box (polygonal bounding box, parallelogram bounding box) annotation and transcription for the texts; non-vertical rectangular bounding box (polygonal bounding box, parallelogram bounding box) annotation and transcription for the texts. This dataset can be used for tasks such as multiple vertical text scenes OCR.

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Specifications

Data size

57,645 images, 528,553 bounding boxes

Collecting environment

including street scenes, plaques, billboards, posters, decorations, art lettering, magazine covers etc.

Data diversity

multiple scenes, multiple fonts

Language distribution

Chinese, English (a few)

Bounding box direction distribution

324,399 vertical bounding boxes, 204,154 non-vertical bounding boxes

Bounding box shape distribution

34,936 rectangular bounding boxes, 220,716 polygonal bounding boxes, 272,901 parallelogram bounding boxes

Data format

the image data format is .jpg, the annotation file format is .json

Annotation content

vertical -level rectangular bounding box (polygonal bounding box, parallelogram bounding box) annotation and transcription for the texts; non-vertical rectangular bounding box (polygonal bounding box, parallelogram bounding box) annotation and transcription for the texts

Accuracy

The error bound of each vertex of a bounding box is within 3 pixels, which is a qualified annotation, the accuracy of bounding boxes is not less than 97%; The texts transcription accuracy is not less than 97%.

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