Semi-Supervised Video Object Segmentation Based on Local and Global Consistency Learning

Due to the variety of video types and different quality on the Internet, it brings more challenges to video processing algorithms such as video object segmentation. Most existing video object segmentation methods rely on modules in other fields as an additional structure of the segmentation model. The combination of modules can improve the accuracy of the model, but it will also reduce the algorithm speed. This paper proposes a semi-supervised video object segmentation method based on local and global consistency learning, which does not rely on additional structures to achieve fast segmentation. First, we extract the embedding features of the image based on GhostNet which is the lightweight network. By using the embedded features of pixels, the graph model is established based on the similarity between pixels. Second, we adopt the local-global consistency learning framework to construct the label conduction model. Third, to optimize the memory occupation and inference speed of the model, we propose a sampling strategy for reference frames by considering local and global information. Finally, we establish a high-speed monitoring video dataset to verify the practical application effect of the method. Our method achieves a result of 69.5% J&F mean with 46 FPS on DAVIS 2017 dataset. At the same time, this paper constructed a high-speed monitoring video dataset. The algorithm obtained 68.2% J&F on this dataset, indicating that the method has good generalization and robust performance in practical applications.