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yijingru / BBAVectors-Oriented-Object-Detection

[WACV2021] Oriented Object Detection in Aerial Images with Box Boundary-Aware Vectors
MIT License
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About bl tl tr br return by cv2.points #51

Closed byfate closed 4 years ago

byfate commented 4 years ago

I have read the code about generating the groud truth,and I visiual the image and plot bl tl tr br points in original image. I found that the bl point is not always the bottom left. It will change with the change of x,y w,h ,theta.I am wondering if you can help me in this problem.Does it will affct the definition in the paper, I am little confused.

yijingru commented 4 years ago

When you plot the t,r,b,l and look them in a quadrant way, then you will find it's right. You can look at Fig.2, when you rotate the box anticlockwise, the bl will become br. By the way, I don't really think the name of the vector matters, they are just four types, as long as the four types can be differentiated by ground-truth, it will be fine.

byfate commented 4 years ago

OK I get it,appreciated. It actually will change when rotate them, thank your awesome work.