Scene Adaptation for Semantic Segmentation using Adversarial Learning

Semantic Segmentation algorithms based on the deep learning paradigm have reached outstanding performances. However, in order to achieve good results in a new domain, it is generally demanded to fine-tune a pre-trained deep architecture using new labeled data coming from the target application domain. The fine-tuning procedure is also required when the domain application settings change, e. g., when a camera is moved, or a new camera is installed. This implies the collection and pixel-wise la-beling of images to be used for training, which slows down the deployment of semantic segmentation systems in real industrial scenarios and increases the industrial costs. Taking into account the aforementioned issues, in this paper we propose an approach based on Adversarial Learning to perform scene adaptation for semantic segmentation. We frame scene adaptation as the task of predicting semantic segmentation masks for images belonging to a Target Scene Context given labeled images coming from a Source Scene Context and unlabeled images coming from the Target Scene Context. Experiments highlight that the proposed method achieves promising performances both when the two scenes contain similar content (i.e., they are related to two different points of view of the same scene) and when the observed scenes contain unrelated content (i.e., they account to completely different scenes).