Use "detectron" tag for questions related to FAIR's detectron or detectron2 framework for object detection and segmentation.
Questions tagged [detectron]
217 questions
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How can I split registered COCO dataset to train and validation for Detectron2?
I'm trying to train an instance segmentation model using Detectron2 but I'm not sure how I could validate every certain number of iterations on 20% of the data available.
I have multiple registered COCO datasets using register_coco_instances() but I…

Sam Matar
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Detectron2 - undefined symbol: _ZNK2at6Tensor7reshapeEN3c108ArrayRefIlEE
File /home/xyzUser/MyProject/.env/lib/python3.8/site-packages/detectron2/layers/deform_conv.py", line 11, in
from detectron2 import _C
ImportError:…

ReaL_HyDRA
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Detectron2 - How to use RepeatFactorTrainingSampler in class imbalance problem
I'm facing class imbalance problem in a 2 classes classification problem.
Generally class 1 is about 25% of class 2. (class 1= 100 observations, class 2 = 400)
So i will need class 1 to have 4x times more than the current observation.
With the…

kwc
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In detectron2, how could I put the keypoint names on the image?
First, I will explain the problem statement. I am wuing Detectron2 for keypoint detection for my custom dataset. I am using the below code to visualize the bounding box and the keyoints.
outputs = predictor(im[..., ::-1])
v = Visualizer(im[:, :,…

Amit
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How to "visualise" the images which go inside the model for training in Detectron 2?
How can I see my inputs to Detectron 2: Faster RCNN Object detection model? I need to debug my model to see both the X (Image) and Y (bounding Box coordinates, classes, labels etc). I am using some custom augmentations and in this github comment it…

Deshwal
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Is it possible to get the pixels coordinates of the detected object with Detectron2?
Is there any way to save segmentation area to a TXT file or CSV file?
I would like to get all the pixel coordinates (integers) of segmentation area, but I don't know how to do it.
Is there any way to do it?
thank you in advance

kento
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How to train custom keypoint detection with COCO formated dataset and Detectron2 with out skeleton?
I have successfully trained a model for custom instance segmentation using Detectron2. Now I am preparing my custom dataset to train a keypoint detection model using Detectron2. Detectron2 uses COCO formatted dataset for training. The format of COCO…

Amit
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error while trying to install detectron2: error: metadata-generation-failed × Encountered error while generating package metadata
I am trying to install detectron2 using Pip but I face this error:
MacBook-Air desktop % python -m pip install -e detectron2
Obtaining file:///Users/test/Desktop/detectron2
Preparing metadata (setup.py) ... error
error:…

Ilyes Ben Yaala
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How to add early stopping in Detectron2 model
I am using detectron2 for object detection, but facing over fitting issues.
Read somewhere of using after_step() function.. But can't understand how to fit the logic in the model...
Please help.
Thanks in advance.

R.K
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How to save Detectron2 model as a vanilla pytorch model?
I have a Faster-RCNN model trained with Detectron2. Model weights are saved as model.pth.
I have my pickled config.yml file and there are a couple of ways to load this model:
from detectron2.modeling import build_model
from detectron2.checkpoint…

Deshwal
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Changing the path of builtin datasets of Detectron2
I want to change the default path of builtin PASCAL VOC Dataset in Detectron2.
According to the documentation,
You can set the location for builtin datasets by export DETECTRON2_DATASETS=/path/to/datasets
I'm unable to understand where to place…

Yashika Jain
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How to install a package from git repo build when it needs another package to be already present?
I am trying to deploy my app to Streamlit and it requires detectron2. I had to install detectron2 using
python -m pip install 'git+https://github.com/facebookresearch/detectron2.git'
It requires torch to be already present as it'll throw an error…

Deshwal
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How to fine tune an object detection model for custom data and classes using Detectron2?
I have a pre-trained model weight (as .pth) and it's configuration (as .yaml) and I want to fine-tune this model on my downstream task. The only problem is that I have 1 class while the pre trained model has 5 classes and when I have fine tuned my…

Deshwal
- 3,436
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Detectron2 Installation based on pytorch and cuda versions
I am fairly new to Object Detection and I'm trying to install Detectron2 on colab. My Pytorch version is 1.12 whereas Cuda version is 11.2. I referred the website https://detectron2.readthedocs.io/en/latest/tutorials/install.html to find the most…

Vikas Kumar
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How can I show validation loss and validation accuracy evaluation for the detectron2 model?
I have split the data to train and test (0.85)
and here's my loss visualization code :
import pandas as pd
metrics_df = pd.read_json("./output/metrics.json", orient="records", lines=True)
mdf = metrics_df.sort_values("iteration")
mdf.head(10).T
fig,…

MohamedHakim BEDHIEF
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