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Randomly crop out batch images and sliding-window inference #2247

@ELKYang

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@ELKYang

Hello, May I ask if there is any paper or material that can support the "Medical image data volume may be too large to fit into GPU memory. A widely-used approach is to randomly draw small size data samples during training and run a ‘sliding window’ routine for inference." mentioned in "4. Randomly crop out batch images based on positive/negative ratio"

For example, if I use the RandCropByPosNegLabel transform, How can I make sure that every place containing the target area is collected? If not, does that mean I can't make the best use of my data?
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