opencv: OpenCV fails to import ONNX model: error: (-215:Assertion failed) !isDynamicShape in function 'cv::dnn::dnn4_v20220524::ONNXImporter::parseShape'

System information (version)

• OpenCV => 4.5.5
• Operating System / Platform => Windows 10 64 bit
• Compiler => Python 3.10.4
• Installed packages:

numpy 1.22.3 opencv-contrib-python 4.5.5.64 pip 22.0.4 setuptools 58.1.0

Detailed description

When importing https://github.com/onnx/models/blob/main/vision/object_detection_segmentation/faster-rcnn/model/FasterRCNN-12.onnx into OpenCV the ONNXImporter fails.

I wrote a Python script in a different venv to check the model with onnx and infer with the model with onnxruntime. The model imports and executes fine. This is not a problem with the models, but with the importer.

Error message:

cv2.error: OpenCV(4.5.5) D:\a\opencv-python\opencv-python\opencv\modules\dnn\src\onnx\onnx_importer.cpp:928: error: (-2:Unspecified error) in function 'cv::dnn::dnn4_v20211220::ONNXImporter::handleNode'
> Node [ReduceMin@ai.onnx]:(2090) parse error: OpenCV(4.5.5) D:\a\opencv-python\opencv-python\opencv\modules\dnn\src\dnn.cpp:621: error: 
(-2:Unspecified error) Can't create layer "2090" of type "ReduceMin" in function 'cv::dnn::dnn4_v20211220::LayerData::getLayerInstance'  
>

Steps to reproduce

• Reproducible: yes
• Enforceable: yes

Import the model using

model = cv2.dnn.readNetFromONNX(model_path)

Issue submission checklist

• I report the issue, it’s not a question
• I checked the problem with documentation, FAQ, open issues, forum.opencv.org, Stack Overflow, etc and have not found any solution
• I updated to the latest OpenCV version and the issue is still there
• There is reproducer code and related data files: videos, images, onnx, etc