Where to find the model_checkpoint for DetectorNode in webcam_demo.py

[dkobayas-cyber]

Thank you very much for developing the exciting tools! I have just started using the mmpose and have some questions about the configuration of DetectorNode in webcam_demo.py.

As in the document, the DetectorNode is configured like below:

# 'DetectorNode':
# This node performs object detection from the frame image using an
# MMDetection model.
dict(
    type='DetectorNode',
    name='detector',
    model_config='demo/mmdetection_cfg/'
    'ssdlite_mobilenetv2_scratch_600e_coco.py',
    model_checkpoint='https://download.openmmlab.com'
    '/mmdetection/v2.0/ssd/'
    'ssdlite_mobilenetv2_scratch_600e_coco/ssdlite_mobilenetv2_'
    'scratch_600e_coco_20210629_110627-974d9307.pth',
    input_buffer='_input_',
    output_buffer='det_result')

I cannot fully understand these four lines:

model_checkpoint='https://download.openmmlab.com'
    '/mmdetection/v2.0/ssd/'
    'ssdlite_mobilenetv2_scratch_600e_coco/ssdlite_mobilenetv2_'
    'scratch_600e_coco_20210629_110627-974d9307.pth'

My questions are:

• Which path does model_checkpoint point to?

  If I understand correctly, this variable should specify a path or a URL to the model checkpoint (SSD-light model, in this case). However, I could not open https://download.openmmlab.com nor find a folder named /mmdetection/v2.0/ssd/ in the github repo of mmdetection. Where is the model file scratch_600e_coco_20210629_110627-974d9307.pth located?

• Where is the checkpoint of YOLOv3 model?

  I found the model configuration file of YOLOv3 in demo/mmdetection_cfg/ but cannot find its checkpoint.

[evansean]

the four lines make up the full URL to which you'll download the model checkpoint from.