Where can I find model.ckpt in faster_rcnn_resnet50_coco model?

Question

In an awesome tutorial about using the tensorflow API for transfer learning, I found the following instructions:

• Copy the config file for the model you selected and move it to a new folder where you will perform all the training
• change the fine_tune_checkpoint path to point to the model.ckpt file

Since I want to use resnet, I downloaded the faster_rcnn_resnet50_coco model from tensorflows model zoo and unpacked it, but instead of a "model.ckpt" I only found the following three files with a ckpt ending:

• model.ckpt.data-00000-of-00001
• model.ckpt.index
• model.ckpt.meta

So where can I find the model.ckpt file mentioned in the tutorial?

Answer 1

Just figured it out myself, that there is actually no contradiction. All three files with .ckpt. are needed and the configuration file mentioned in the tutorial has to point to

[DirectoryContainingTheCkptFiles]/model.ckpt.

I.e., there is no model.ckpt file. It is just an entry marker for the train.py script, to find the three .ckpt. files during training.