Eyenet: Attention based Convolutional Encoder-Decoder Network for Eye Region Segmentation
This work addresses the challenge of robust eye segmentation for applications like AR/VR, though it appears incremental as it builds on existing CNN approaches with attention mechanisms.
The paper tackled the problem of accurate eye region segmentation for eye-tracking in augmented and virtual reality by proposing EyeNet, an attention-based convolutional encoder-decoder network, which achieved a total score of 0.974 on test data, outperforming baseline methods.
With the immersive development in the field of augmented and virtual reality, accurate and speedy eye-tracking is required. Facebook Research has organized a challenge, named OpenEDS Semantic Segmentation challenge for per-pixel segmentation of the key eye regions: the sclera, the iris, the pupil, and everything else (background). There are two constraints set for the participants viz MIOU and the computational complexity of the model. More recently, researchers have achieved quite a good result using the convolutional neural networks (CNN) in segmenting eyeregions. However, the environmental challenges involved in this task such as low resolution, blur, unusual glint and, illumination, off-angles, off-axis, use of glasses and different color of iris region hinder the accuracy of segmentation. To address the challenges in eye segmentation, the present work proposes a robust and computationally efficient attention-based convolutional encoder-decoder network for segmenting all the eye regions. Our model, named EyeNet, includes modified residual units as the backbone, two types of attention blocks and multi-scale supervision for segmenting the aforesaid four eye regions. Our proposed model achieved a total score of 0.974(EDS Evaluation metric) on test data, which demonstrates superior results compared to the baseline methods.