David Lee

American Sign Language Letters

Object Detection

American Sign Language Letters Image Dataset

v2

aug

Generated on Nov 29, 2020

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Dataset Split

Train Set 96%
5040Images
Valid Set 3%
144Images
Test Set 1%
72Images

Preprocessing

Auto-Orient: Applied
Resize: Stretch to 640x640
Filter Null: Require at least 90% of images to contain annotations.

Augmentations

Outputs per training example: 10
Crop: 0% Minimum Zoom, 50% Maximum Zoom
Rotation: Between -10° and +10°
Shear: ±10° Horizontal, ±10° Vertical
Grayscale: Apply to 10% of images
Hue: Between -25° and +25°
Saturation: Between -25% and +25%
Brightness: Between -25% and +25%
Exposure: Between -15% and +15%
Blur: Up to 1.25px