一种通过动态决策生成网络和生成对抗网络的新型图像语义通信方法
Shugang Liu1,2, Zhan Peng3, Qiangguo Yu4
1School of Physics and Electronic Science, Hunan University of Science and Technology, Xiangtan, 411201, China.
Scientific reports
|August 23, 2024
概括
这项研究引入了一种新的图像语义通信模型,用于高效的图像压缩和高质量的重建. 深度学习方法实现了显著的压缩比率和低扭曲,优于现有方法.
科学领域:
- 计算机科学 计算机科学
- 电气工程 电气工程
- 人工智能的人工智能
背景情况:
- 图像语义通信在压缩和重建质量方面面临挑战.
- 对于现代通信系统来说,有效地传输图像,同时保持其真实性至关重要.
研究的目的:
- 提出一种新的图像语义通信模型,整合动态决策生成和生成对抗网络.
- 通过使用深度学习来增强图像压缩和减少重建扭曲.
主要方法:
- 利用语义编码和动态决策生成网络,根据信号噪声比 (SNR) 来进行特征提取和选择.
- 采用具有对抗和感知损失的生成对抗网络 (GAN) 来改善接收器的图像重建.
- 实施了基于深度学习的联合源-通道编码方法.
主要成果:
- 在AWGN通道中实现了81.5%的压缩比 (CR) 和26dB的峰值SNR.
- 在雷利衰变通道中,该方案产生了80.5%的CR和23dB的峰值SNR.
- 在两个通道中都显示了较低的学习感知图像补丁相似性 (<0.008).
结论:
- 拟议的语义通信模型为联合源-通道编码提供了基于深度学习的优质解决方案.
- 该方法有效地实现了高压缩比,并最大限度地减少了重建图像的扭曲.
- 这种方法显著提高了图像传输效率和质量.
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