CenterNet ERROR：Can't parse 'pt1'. Sequence item with index 0 has a wrong type

Hello, thanks for this wonderful work. I met a tough problem when I try to use CenterNet in 3D object detection. I run the following command: python demo.py ddd --demo ../images/000003.png --load_model ../models/ddd_3dop.pth

but there interrupt a strange error：

(Python36) wei@wei:~/PycharmProjects/CenterNet/src$ python demo.py ddd --demo ../images/000003.png --load_model ../models/ddd_3dop.pth NMS not imported! If you need it, do cd $CenterNet_ROOT/src/lib/external make NMS not imported! If you need it, do cd $CenterNet_ROOT/src/lib/external make Fix size testing. training chunk_sizes: [32] The output will be saved to /home/wei/PycharmProjects/CenterNet/src/lib/../../exp/ddd/default heads {'hm': 3, 'dep': 1, 'rot': 8, 'dim': 3, 'wh': 2, 'reg': 2} Creating model... loaded ../models/ddd_3dop.pth, epoch 70 THCudaCheck FAIL file=/opt/conda/conda-bld/pytorch_1535491974311/work/aten/src/THC/THCGeneral.cpp line=663 error=11 : invalid argument Traceback (most recent call last): File "demo.py", line 59, in demo(opt) File "demo.py", line 52, in demo ret = detector.run(image_name) File "/home/wei/PycharmProjects/CenterNet/src/lib/detectors/base_detector.py", line 140, in run self.show_results(debugger, image, results) File "/home/wei/PycharmProjects/CenterNet/src/lib/detectors/ddd.py", line 103, in show_results center_thresh=self.opt.vis_thresh, img_id='add_pred') File "/home/wei/PycharmProjects/CenterNet/src/lib/utils/debugger.py", line 330, in add_3d_detection self.imgs[img_id] = draw_box_3d(self.imgs[img_id], box_2d, cl) File "/home/wei/PycharmProjects/CenterNet/src/lib/utils/ddd_utils.py", line 58, in draw_box_3d (corners[f[(j+1)%4], 0], corners[f[(j+1)%4], 1]), c, 2, lineType=cv2.LINE_AA) cv2.error: OpenCV(4.6.0) :-1: error: (-5:Bad argument) in function 'line'

Overload resolution failed:

Can't parse 'pt1'. Sequence item with index 0 has a wrong type

Can't parse 'pt1'. Sequence item with index 0 has a wrong type

what should I do? do I need to change image to mp4 like issue#397(https://github.com/xingyizhou/CenterNet/issues/397)?

Jul 29 '22 07:07 Huleyun

Convert whatever your parameters are to Integer type

Aug 29 '22 11:08 AsDeadAsADodo

It is most likely that the opencv version is not suitable。 I've had similar problems，The solution is as follows： in draw_box_3d function or other similar error codes，add int(), like this:

cv2.line(image, (int(corners[f[j], 0]), int(corners[f[j], 1])), ...