When calculating the box's area in iou_loss , why adding target_left to target_right ?

tianzhi0549 / FCOS

FCOS: Fully Convolutional One-Stage Object Detection (ICCV'19)

https://arxiv.org/abs/1904.01355

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When calculating the box's area in iou_loss , why adding target_left to target_right ? #288

Closed wsh122333 closed 4 years ago

wsh122333 commented 4 years ago

@tianzhi0549 When calculating the box's area in iou_loss , why is target_area = (target_left + target_right) (target_top + target_bottom) rather than target_area = (target_right - target_left ) (target_bottom - target_top) ?

Thanks!

wsh122333 commented 4 years ago

Sorry, I've got it.