Tensorflow Object Detection API - Visualize Region Proposals

I would like to be able to visualize the regions proposals made by Faster-RCNN (like Resnet101_coco) using Tensorflow Object Detection API, preferably in Tensorboard. Is there any

Solution 1:

You can visualize the detected objects in tensorboard during evaluation (i.e. while running object_detection/eval.py script) You would need to add num_visualizations key to the config file, e.g.

eval_config: {
  num_examples: 20000
  num_visualizations: 16
  min_score_threshold: 0.15
  # Note: The below line limits the evaluation process to 10 evaluations.
  # Remove the below line to evaluate indefinitely.
  max_evals: 1
}

After running evaluation, you should be able to see an images tab in Tensorboard showing the detected objects. You can adjust the IoU threshold (min_score_threshold) to vary the number of displayed detections.