Human-Centric Clothing Segmentation via Deformable Semantic Locality-Preserving Network

In the fields of computer vision and graphics, clothing segmentation is a challenging and practical task which is typically implemented in a fine-grained semantic segmentation framework. Unlike the generic semantic segmentation task, clothing segmentation has some domain-specific properties such as diverse appearance variations, non-rigid geometry deformations, and small sample learning. To deal with these points, we propose a semantic locality-preserving segmentation model, which adaptively attaches an original clothing image with a semantically similar (e.g., appearance or pose) auxiliary exemplar by search. Through considering the interactions of the clothing image and its exemplar, more intrinsic knowledge about the locality manifold structures of clothing images is discovered to make the learning process of small sample problem more stable and tractable. Besides, we present a CNN model based on the deformable convolutions to extract the non-rigid geometry-aware features for clothing images. Furthermore, we apply our semantic locality-preserving segmentation model in both image and video cases, resulting in favorable clothing segmentation performance. Experimental results demonstrate the effectiveness of the proposed model against the state-of-the-art approaches.