|  | |
|  | |
| Automating the Evaluation of Crystallization Experiments | |
| ======================================================== | |
| This is a pretrained model described in the paper: | |
| [Classification of crystallization outcomes using deep convolutional neural networks](https://arxiv.org/abs/1803.10342). | |
| This model takes images of crystallization experiments as an input: | |
| <img src="https://storage.googleapis.com/marco-168219-model/002s_C6_ImagerDefaults_9.jpg" alt="crystal sample" width="320" height="240" /> | |
| It classifies it as belonging to one of four categories: crystals, precipitate, clear, or 'others'. | |
| The model is a variant of [Inception-v3](https://arxiv.org/abs/1512.00567) trained on data from the [MARCO](http://marco.ccr.buffalo.edu) repository. | |
| Model | |
| ----- | |
| The model can be downloaded from: | |
| https://storage.googleapis.com/marco-168219-model/savedmodel.zip | |
| Example | |
| ------- | |
| 1. Install TensorFlow and the [Google Cloud SDK](https://cloud.google.com/sdk/gcloud/). | |
| 2. Download and unzip the model: | |
| ```bash | |
| unzip savedmodel.zip | |
| ``` | |
| 3. A sample image can be downloaded from: | |
| https://storage.googleapis.com/marco-168219-model/002s_C6_ImagerDefaults_9.jpg | |
| Convert your image into a JSON request using: | |
| ```bash | |
| python jpeg2json.py 002s_C6_ImagerDefaults_9.jpg > request.json | |
| ``` | |
| 4. To issue a prediction, run: | |
| ```bash | |
| gcloud ml-engine local predict --model-dir=savedmodel --json-instances=request.json | |
| ``` | |
| The request should return normalized scores for each class: | |
| <pre> | |
| CLASSES SCORES | |
| [u'Crystals', u'Other', u'Precipitate', u'Clear'] [0.926338255405426, 0.026199858635663986, 0.026074528694152832, 0.021387407556176186] | |
| </pre> | |
| CloudML Endpoint | |
| ---------------- | |
| The model can also be accessed on [Google CloudML](https://cloud.google.com/ml-engine/) by issuing: | |
| ```bash | |
| gcloud ml-engine predict --model marco_168219_model --json-instances request.json | |
| ``` | |
| Ask the author for access privileges to the CloudML instance. | |
| Note | |
| ---- | |
| `002s_C6_ImagerDefaults_9.jpg` is a sample from the | |
| [MARCO](http://marco.ccr.buffalo.edu) repository, contributed to the dataset under the [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) license. | |
| Author | |
| ------ | |
| [Vincent Vanhoucke](mailto:[email protected]) (github: vincentvanhoucke) | |