Semantic Refocused Tuning for Open-Vocabulary Panoptic Segmentation

• URL: http://arxiv.org/abs/2409.16278v1
• Date: Tue, 24 Sep 2024 17:50:28 GMT
• Title: Semantic Refocused Tuning for Open-Vocabulary Panoptic Segmentation
• Authors: Yong Xien Chng, Xuchong Qiu, Yizeng Han, Kai Ding, Wan Ding, Gao Huang,
• Abstract summary: Open-vocabulary panoptic segmentation is an emerging task aiming to accurately segment the image into semantically meaningful masks. mask classification is the main performance bottleneck for open-vocab panoptic segmentation. We propose Semantic Refocused Tuning, a novel framework that greatly enhances open-vocab panoptic segmentation.
• Score: 42.020470627552136
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Open-vocabulary panoptic segmentation is an emerging task aiming to accurately segment the image into semantically meaningful masks based on a set of texts. Despite existing efforts, it remains challenging to develop a high-performing method that generalizes effectively across new domains and requires minimal training resources. Our in-depth analysis of current methods reveals a crucial insight: mask classification is the main performance bottleneck for open-vocab. panoptic segmentation. Based on this, we propose Semantic Refocused Tuning (SMART), a novel framework that greatly enhances open-vocab. panoptic segmentation by improving mask classification through two key innovations. First, SMART adopts a multimodal Semantic-guided Mask Attention mechanism that injects task-awareness into the regional information extraction process. This enables the model to capture task-specific and contextually relevant information for more effective mask classification. Second, it incorporates Query Projection Tuning, which strategically fine-tunes the query projection layers within the Vision Language Model (VLM) used for mask classification. This adjustment allows the model to adapt the image focus of mask tokens to new distributions with minimal training resources, while preserving the VLM's pre-trained knowledge. Extensive ablation studies confirm the superiority of our approach. Notably, SMART sets new state-of-the-art results, demonstrating improvements of up to +1.3 PQ and +5.4 mIoU across representative benchmarks, while reducing training costs by nearly 10x compared to the previous best method. Our code and data will be released.

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