Coordinate backward conversion

DetectionTeamUCAS / R2CNN_Faster-RCNN_Tensorflow

Rotational region detection based on Faster-RCNN.

MIT License

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Coordinate backward conversion #51

Open xinli94 opened 5 years ago

xinli94 commented 5 years ago

Hi,

I am wondering if this part will introduces some bugs https://github.com/DetectionTeamUCAS/R2CNN_Faster-RCNN_Tensorflow/blob/854fe56697132ef82b13e9570f077fcd9e6c6e78/libs/box_utils/coordinate_convert.py#L43

Because cv2 minRectArea gives us angles ranging from -90 to 0 degrees, which means some box will be rotated 90 degrees if we use this back_forward_convert func. Is this expected?

Any suggestion on fixing this?

Best, Xin

xinli94 commented 5 years ago

There is a workaround if we want the angle between the longer side and vertical - but is it possible to get the groundtruth angle without any assumption?