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未验证 提交 4fc516d2 编写于 作者: W wangguanzhong 提交者: GitHub

update elementwise api in fcos (#1245)

上级 18cdc508
......@@ -76,14 +76,14 @@ class FCOSLoss(object):
Return:
loss (Varialbes): location loss
"""
plw = pred[:, 0] * positive_mask
pth = pred[:, 1] * positive_mask
prw = pred[:, 2] * positive_mask
pbh = pred[:, 3] * positive_mask
tlw = targets[:, 0] * positive_mask
tth = targets[:, 1] * positive_mask
trw = targets[:, 2] * positive_mask
tbh = targets[:, 3] * positive_mask
plw = fluid.layers.elementwise_mul(pred[:, 0], positive_mask, axis=0)
pth = fluid.layers.elementwise_mul(pred[:, 1], positive_mask, axis=0)
prw = fluid.layers.elementwise_mul(pred[:, 2], positive_mask, axis=0)
pbh = fluid.layers.elementwise_mul(pred[:, 3], positive_mask, axis=0)
tlw = fluid.layers.elementwise_mul(targets[:, 0], positive_mask, axis=0)
tth = fluid.layers.elementwise_mul(targets[:, 1], positive_mask, axis=0)
trw = fluid.layers.elementwise_mul(targets[:, 2], positive_mask, axis=0)
tbh = fluid.layers.elementwise_mul(targets[:, 3], positive_mask, axis=0)
tlw.stop_gradient = True
trw.stop_gradient = True
tth.stop_gradient = True
......@@ -101,7 +101,7 @@ class FCOSLoss(object):
area_inter = (ilw + irw) * (ith + ibh)
ious = (area_inter + 1.0) / (
area_predict + area_target - area_inter + 1.0)
ious = ious * positive_mask
ious = fluid.layers.elementwise_mul(ious, positive_mask, axis=0)
if self.iou_loss_type.lower() == "linear_iou":
loss = 1.0 - ious
elif self.iou_loss_type.lower() == "giou":
......@@ -187,16 +187,20 @@ class FCOSLoss(object):
normalize_sum.stop_gradient = True
normalize_sum = fluid.layers.reduce_sum(mask_positive_float *
normalize_sum)
normalize_sum.stop_gradient = True
cls_loss = fluid.layers.sigmoid_focal_loss(
cls_logits_flatten, tag_labels_flatten,
num_positive_int32) / num_positive_fp32
reg_loss = self.__iou_loss(
bboxes_reg_flatten, tag_bboxes_flatten, mask_positive_float,
tag_center_flatten) * mask_positive_float / normalize_sum
reg_loss = self.__iou_loss(bboxes_reg_flatten, tag_bboxes_flatten,
mask_positive_float, tag_center_flatten)
reg_loss = fluid.layers.elementwise_mul(
reg_loss, mask_positive_float, axis=0) / normalize_sum
ctn_loss = fluid.layers.sigmoid_cross_entropy_with_logits(
x=centerness_flatten,
label=tag_center_flatten) * mask_positive_float / num_positive_fp32
ctn_loss = fluid.layers.elementwise_mul(
ctn_loss, mask_positive_float, axis=0) / normalize_sum
loss_all = {
"loss_centerness": fluid.layers.reduce_sum(ctn_loss),
"loss_cls": fluid.layers.reduce_sum(cls_loss),
......
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