What does the model detect?
This model detects pink eyes and normal eyes in images.
What is the use of this model?
The eye is one of the most critical tangible organs in the human body. Eye diseases are a typical medical problem around the globe. The detection will help medical professionals detect pink eyes faster and more efficiently. This model has medical uses.
Approach to creating a model in Vredefort
Step 1 – Dataset Collection
We collected data from an open-source. There are two classes, namely Pink eye and Normal eye.
Step 2 – Data Cleaning
After collecting the dataset, we uploaded it on Vredefort. Vredefort automatically cleans the data by removing the corrupt images and resizing them to a suitable resolution.
Step 3 – Data Annotation
The computer learns to detect objects from images through a process of labeling. Thus, we drew boxes around the concerned objects and labeled them as pink eye/normal eye accordingly.
We annotated 254 images using the inbuilt Vredefort tool.
Annotation Rules – (Keep them in mind for better detection)
⦁ Skip the object if it is in motion or blur.
⦁ Precisely draw the bounding box on the object.
⦁ Bounding boxes should not be too large.
[Optional] Step 4 – Tuning Parameters
If you register as a developer and developer mode is on, you can modify the number of
epochs, batch size per GPU, neural network model, etc. In case of no user inputs, the
settings will change to default.
Step 5 – Training
The training process takes place automatically with a single click.
Evaluation of the model
After training, we can evaluate the model.
In evaluation, there are two parts. The first is accuracy and the second is to play inference videos. Vredefort enables us to obtain total model accuracy and class wise accuracy. In this case, two classes are present. We achieved 51% accuracy. Individual class accuracy is 65% for pink eye and 38% for the normal eye.
A new video for inference
We made a video from test dataset images and used it for interference. If the developer mode is on, it will ask to set confidence. You can set it as per your convenience. Here we set 0.1 [10%] confidence.
Model download and transfer learning from unpruned model
Vredefort provides one more feature to get the accuracy of the model. It allows you to download the model and dataset for further applications(like adding logic to your model). If you have downloaded model files, you can use the unpruned model (click here to know more about the unpruned model) for different datasets and save training time. You can generate alerts and write use-cases with that model.
Any challenges faced
⦁ The model will work best on a person’s face images where the eyes are visible.
⦁ The model is trained on face images, hence will work best on those images or video feed.
⦁ It will struggle to detect eyes whenever full person images/videos are provided.
For more accuracy, collect the dataset from different angles and balance the dataset for both classes by reducing the mismatch in the number of images. You need not worry about class imbalance if images in your dataset are balanced for all classes.
Model Name – Pink eye and Normal eye Detection
Dataset Images – 254
Number of Labels – 2
Label name and count – pink eye (152), normal eye (181)
Accuracy – 51%
Class Accuracy – pink eye (65%), normal eye (38%)
Dataset Download – Download here
Model Download Link – Download here
Inference Video Link – Download here