arXiv:2507.14199cs.NIcs.CV2025-07

将图像语义分割任务拆分至发送端和接收端,大幅降低传输带宽与设备计算负担。

On Splitting Lightweight Semantic Image Segmentation for Wireless Communications

  • 将语义分割过程拆分,发送端仅传关键特征,接收端完成剩余处理。
  • 传输比特率最多降低72%,发送端计算负载减少超19%。
  • 适合资源受限设备在6G等未来通信系统中的高效应用。

语义通信在降低通信成本方面具有前景,尤其在图像分割场景中,但现有方法难以在计算效率、带宽需求与高分割精度之间取得平衡,尤其是在资源受限环境和动态信道条件下。随着语义图像分割模型日益复杂,设备处理数据的负担加剧。本文提出一种新方法,将语义图像分割过程在资源受限的发送端与接收端之间拆分。该方法通过减少传输数据量,在保持分割精度的同时显著节省带宽,并降低发送端的计算压力。通过仿真实验评估了计算资源消耗、所需比特率及分割精度等指标。结果表明,与全量语义分割在发送端完成相比,本方案可实现传输比特率最高降低72%,发送端计算负载减少超过19%。该技术对6G等下一代通信系统具有重要应用价值。

原文摘要 · Abstract (English)

Semantic communication represents a promising technique towards reducing communication costs, especially when dealing with image segmentation, but it still lacks a balance between computational efficiency and bandwidth requirements while maintaining high image segmentation accuracy, particularly in resource-limited environments and changing channel conditions. On the other hand, the more complex and larger semantic image segmentation models become, the more stressed the devices are when processing data. This paper proposes a novel approach to implementing semantic communication based on splitting the semantic image segmentation process between a resource constrained transmitter and the receiver. This allows saving bandwidth by reducing the transmitted data while maintaining the accuracy of the semantic image segmentation. Additionally, it reduces the computational requirements at the resource constrained transmitter compared to doing all the semantic image segmentation in the transmitter. The proposed approach is evaluated by means of simulation-based experiments in terms of different metrics such as computational resource usage, required bit rate and segmentation accuracy. The results when comparing the proposal with the full semantic image segmentation in the transmitter show that up to 72% of the bit rate was reduced in the transmission process. In addition, the computational load of the transmitter is reduced by more than 19%. This reflects the interest of this technique for its application in communication systems, particularly in the upcoming 6G systems.

语义通信图像分割6G

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