Wrong implementation of ROIAlign layer?

matterport / Mask_RCNN

Mask R-CNN for object detection and instance segmentation on Keras and TensorFlow

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Wrong implementation of ROIAlign layer? #254

Closed DingkunLiu closed 6 years ago

DingkunLiu commented 6 years ago

In ROIAlign layer, the equation for choosing fpn level seems incorrect, comparing with the equation in original paper without the "/sqrt(image_area)" item.

DingkunLiu commented 6 years ago

Also the FAIR official repo here

waleedka commented 6 years ago

Duplicate of https://github.com/matterport/Mask_RCNN/issues/217

I believe the equation is correct, just being applied to a different unit of measurement.