Skip to content

[#153] add epsilon number to avoid different result at different scale #154

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

[#153] add epsilon number to avoid different result at different scale #154

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 5 additions & 4 deletions main.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -547,19 +547,20 @@ def draw_plot_func(dictionary, n_classes, window_title, plot_title, x_label, out
ground_truth_data = json.load(open(gt_file))
ovmax = -1
gt_match = -1
epsilon = 1e-6
# load detected object bounding-box
bb = [ float(x) for x in detection["bbox"].split() ]
for obj in ground_truth_data:
# look for a class_name match
if obj["class_name"] == class_name:
bbgt = [ float(x) for x in obj["bbox"].split() ]
bi = [max(bb[0],bbgt[0]), max(bb[1],bbgt[1]), min(bb[2],bbgt[2]), min(bb[3],bbgt[3])]
iw = bi[2] - bi[0] + 1
ih = bi[3] - bi[1] + 1
iw = bi[2] - bi[0] + epsilon
ih = bi[3] - bi[1] + epsilon
if iw > 0 and ih > 0:
# compute overlap (IoU) = area of intersection / area of union
ua = (bb[2] - bb[0] + 1) * (bb[3] - bb[1] + 1) + (bbgt[2] - bbgt[0]
+ 1) * (bbgt[3] - bbgt[1] + 1) - iw * ih
ua = (bb[2] - bb[0] + epsilon) * (bb[3] - bb[1] + epsilon) + (bbgt[2] - bbgt[0]
+ epsilon) * (bbgt[3] - bbgt[1] + epsilon) - iw * ih
ov = iw * ih / ua
if ov > ovmax:
ovmax = ov
Expand Down