Abstract: A semantic segmentation method performed by at least one computing device is provided. The method may include extracting a plurality of support features, which include a first-level feature and a second-level feature, from a support image; generating a plurality of prototypes for a class associated with the support image, based on the plurality of support features; and predicting a segmentation mask for a query image using the plurality of prototypes, wherein the plurality of prototypes comprise a first prototype generated based on the first-level feature and a second prototype generated based on the second-level feature.