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Poster

Exploring Reliable Matching with Phase Enhancement for Night-time Semantic Segmentation

Yuwen Pan · Rui Sun · Naisong Luo · Tianzhu Zhang · Yongdong Zhang

Strong blind review: This paper was not made available on public preprint services during the review process Strong Double Blind
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Fri 4 Oct 1:30 a.m. PDT — 3:30 a.m. PDT

Abstract:

Semantic segmentation of night-time images holds significant importance in computer vision, particularly for applications like night environment perception in autonomous driving systems. However, existing methods tend to parse night-time images from a day-time perspective, leaving the inherent challenges in low-light conditions (such as compromised texture and deceiving matching errors) unexplored. To address these issues, we propose a novel end-to-end optimized approach, named NightFormer, tailored for night-time semantic segmentation, avoiding the conventional practice of forcibly fitting night-time images into day-time distributions. Specifically, we design a pixel-level texture enhancement module to acquire texture-aware features hierarchically with phase enhancement and amplified attention, and an object-level reliable matching module to realize accurate association matching via reliable attention in low-light environments. Extensive experimental results on various challenging benchmarks including NightCity, BDD and Cityscapes demonstrate that our proposed method performs favorably against state-of-the-art night-time semantic segmentation methods.

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