4,995 Vietnamese OCR Images Data - Images with Annotation and Transcription

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4,995 Vietnamese OCR Images Data - Images with Annotation and Transcription_4,995 Vietnamese OCR Images Data - Images with Annotation and Transcription

4,995 Vietnamese OCR Images Data - Images with Annotation and Transcription

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4,995 Vietnamese OCR Images Data - Images with Annotation and Transcription. The data includes 258 images of natural scenes, 2,553 Internet images, 2,184 document images. For line-level content annotation, line-level quadrilateral bounding box annotation and test transcription was adpoted; for column-level content annotation, column-level quadrilateral bounding box annotation and text transcription was adpoted. The data can be used for tasks such as Vietnamese recognition in multiple scenes.

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Specifications

Data size: 4,995 OCR images, including 258 images of natural scenes, 2,553 Internet images, 2,184 document images

Collecting environment: including natural scenes (plaque, packaging instructions, small advertisements, menus, posters, etc.), Internet images (magazine covers, comic covers, etc.), document images (text documents, etc.)

Data diversity: including multiple scenes, multiple angles, different light conditions

Device: cellphone

Shooting angles: looking up angle, eye-level angle

Format: the image data format is .jpg, the annotated file format is .json

Annotation content: line-level quadrilateral bounding box annotation and transcription for the texts; column-level quadrilateral bounding box annotation and transcription for the texts

Accuracy: the error bound of each vertex of quadrilateral bounding box is within 10 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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4,995 Vietnamese OCR Images Data - Images with Annotation and Transcription

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4,995 Vietnamese OCR Images Data - Images with Annotation and Transcription