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Glenn Jocher
2020-01-10 09:30:05 -08:00
parent 0219eb094e
commit 793f6389dc
2 changed files with 6 additions and 3 deletions
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utils/utils.py
+4 -2
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@@ -499,7 +499,7 @@ def build_targets(model, targets):
return tcls, tbox, indices, av
def non_max_suppression(prediction, conf_thres=0.5, iou_thres=0.5, multi_cls=True, method='vision_batch', classes=None):
def non_max_suppression(prediction, conf_thres=0.5, iou_thres=0.5, multi_cls=True, classes=None, agnostic=False):
"""
Removes detections with lower object confidence score than 'conf_thres'
Non-Maximum Suppression to further filter detections.
@@ -511,6 +511,7 @@ def non_max_suppression(prediction, conf_thres=0.5, iou_thres=0.5, multi_cls=Tru
# Box constraints
min_wh, max_wh = 2, 4096 # (pixels) minimum and maximum box width and height
method = 'vision_batch'
output = [None] * len(prediction)
for image_i, pred in enumerate(prediction):
# Apply conf constraint
@@ -548,7 +549,8 @@ def non_max_suppression(prediction, conf_thres=0.5, iou_thres=0.5, multi_cls=Tru
# Batched NMS
if method == 'vision_batch':
output[image_i] = pred[torchvision.ops.boxes.batched_nms(pred[:, :4], pred[:, 4], pred[:, 5], iou_thres)]
c = j * 0 if agnostic else j # class-agnostic NMS
output[image_i] = pred[torchvision.ops.boxes.batched_nms(pred[:, :4], pred[:, 4], c, iou_thres)]
continue
# Sort by confidence