PVPUFormer: Probabilistic Visual Prompt Unified Transformer for Interactive Image Segmentation

• URL: http://arxiv.org/abs/2306.06656v2
• Date: Sun, 03 Nov 2024 11:46:02 GMT
• Title: PVPUFormer: Probabilistic Visual Prompt Unified Transformer for Interactive Image Segmentation
• Authors: Xu Zhang, Kailun Yang, Jiacheng Lin, Jin Yuan, Zhiyong Li, Shutao Li,
• Abstract summary: This paper proposes a simple yet effective Probabilistic Visual Prompt Unified Transformer (PVPUFormer) for interactive image segmentation. We first propose a Probabilistic Prompt-unified (PPuE) to generate a unified one-dimensional vector by exploring both prompt and non-prompt information. We then present a Prompt-to-Pixel Contrastive (P$2$C) loss to accurately align both prompt and pixel features, bridging the representation gap between them.
• Score: 28.033243651780214
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Integration of diverse visual prompts like clicks, scribbles, and boxes in interactive image segmentation significantly facilitates users' interaction as well as improves interaction efficiency. However, existing studies primarily encode the position or pixel regions of prompts without considering the contextual areas around them, resulting in insufficient prompt feedback, which is not conducive to performance acceleration. To tackle this problem, this paper proposes a simple yet effective Probabilistic Visual Prompt Unified Transformer (PVPUFormer) for interactive image segmentation, which allows users to flexibly input diverse visual prompts with the probabilistic prompt encoding and feature post-processing to excavate sufficient and robust prompt features for performance boosting. Specifically, we first propose a Probabilistic Prompt-unified Encoder (PPuE) to generate a unified one-dimensional vector by exploring both prompt and non-prompt contextual information, offering richer feedback cues to accelerate performance improvement. On this basis, we further present a Prompt-to-Pixel Contrastive (P$^2$C) loss to accurately align both prompt and pixel features, bridging the representation gap between them to offer consistent feature representations for mask prediction. Moreover, our approach designs a Dual-cross Merging Attention (DMA) module to implement bidirectional feature interaction between image and prompt features, generating notable features for performance improvement. A comprehensive variety of experiments on several challenging datasets demonstrates that the proposed components achieve consistent improvements, yielding state-of-the-art interactive segmentation performance. Our code is available at https://github.com/XuZhang1211/PVPUFormer.

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