Background Fades, Foreground Leads: Curriculum-Guided Background Pruning for Efficient Foreground-Centric Collaborative Perception

Fuente: arXiv
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Autori principali: Wu, Yuheng, Gao, Xiangbo, Tau, Quang, Tu, Zhengzhong, Lee, Dongman
Natura: Preprint
Pubblicazione: 2025
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author Wu, Yuheng
Gao, Xiangbo
Tau, Quang
Tu, Zhengzhong
Lee, Dongman
author_facet Wu, Yuheng
Gao, Xiangbo
Tau, Quang
Tu, Zhengzhong
Lee, Dongman
contents Collaborative perception enhances the reliability and spatial coverage of autonomous vehicles by sharing complementary information across vehicles, offering a promising solution to long-tail scenarios that challenge single-vehicle perception. However, the bandwidth constraints of vehicular networks make transmitting the entire feature map impractical. Recent methods, therefore, adopt a foreground-centric paradigm, transmitting only predicted foreground-region features while discarding the background, which encodes essential context. We propose FadeLead, a foreground-centric framework that overcomes this limitation by learning to encapsulate background context into compact foreground features during training. At the core of our design is a curricular learning strategy that leverages background cues early on but progressively prunes them away, forcing the model to internalize context into foreground representations without transmitting background itself. Extensive experiments on both simulated and real-world benchmarks show that FadeLead outperforms prior methods under different bandwidth settings, underscoring the effectiveness of context-enriched foreground sharing.
format Preprint
id arxiv_https___arxiv_org_abs_2510_19250
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Background Fades, Foreground Leads: Curriculum-Guided Background Pruning for Efficient Foreground-Centric Collaborative Perception
Wu, Yuheng
Gao, Xiangbo
Tau, Quang
Tu, Zhengzhong
Lee, Dongman
Computer Vision and Pattern Recognition
Robotics
Collaborative perception enhances the reliability and spatial coverage of autonomous vehicles by sharing complementary information across vehicles, offering a promising solution to long-tail scenarios that challenge single-vehicle perception. However, the bandwidth constraints of vehicular networks make transmitting the entire feature map impractical. Recent methods, therefore, adopt a foreground-centric paradigm, transmitting only predicted foreground-region features while discarding the background, which encodes essential context. We propose FadeLead, a foreground-centric framework that overcomes this limitation by learning to encapsulate background context into compact foreground features during training. At the core of our design is a curricular learning strategy that leverages background cues early on but progressively prunes them away, forcing the model to internalize context into foreground representations without transmitting background itself. Extensive experiments on both simulated and real-world benchmarks show that FadeLead outperforms prior methods under different bandwidth settings, underscoring the effectiveness of context-enriched foreground sharing.
title Background Fades, Foreground Leads: Curriculum-Guided Background Pruning for Efficient Foreground-Centric Collaborative Perception
topic Computer Vision and Pattern Recognition
Robotics
url https://arxiv.org/abs/2510.19250