| 摘要: |
| 图像语义通信作为一种创新的通信范式，旨在通过传输图像中的语义信息提高通信效率。与传统通信方法相比，图像语义通信在发送端提取图像中的语义信息并发送到信道，接收端则依据语义信息重构图像或直接应用于下游智能任务，有效降低了图像传输对通信资源的需求，显著提高了通信系统的传输效率，为图像传输提供了全新的思路和技术手段。为梳理图像语义通信研究现状并分析未来的发展方向，深入总结了语义通信理论及框架，详细探讨了图像语义通信的相关工作，介绍了语义通信的基本框架以及图像语义通信的理论及实验研究现状。同时，分析了现有图像语义通信技术面临的挑战和问题，旨在为未来的研究提供有益的参考和启示。最后，提出了面向任务的图像语义通信研究思路，为图像语义通信技术的发展提供了理论指导。 |
| 关键词: 图像语义通信 语义信息论 面向任务 知识库 |
| DOI：10.20079/j.issn.1001-893x.240416001 |
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| 基金项目:国防科技大学自主创新科学基金（22-ZZCX-055）;国防科技大学研究生科研创新项目（XJZH2024006） |
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| Image Semantic Communication Technologies:Review and Perspective |
| GUO Chang,HE Zhanhao,YANG Jungang,XI Junhua |
| (Institute of Information and Communication,National University of Defense Technology,Wuhan 430019,China) |
| Abstract: |
| Image semantic communication,as an innovative communication paradigm,is designed to improve communication efficiency by transmitting semantic information in images.Compared with traditional communication methods,image semantic communication transmits semantic information extracted from image data at the sending end,while the receiving end directly uses the semantic information or recovers the original image according to such semantic information,which effectively reduces the bandwidth requirements of image transmission,significantly improves the transmission efficiency,and provides a new method for image transmission.The authors summarize the theory and framework of semantic communication,discusse the related work on image semantic communication,and introduce the basic framework of semantic communication as well as the current state of the art of theoretical and experimental research on image semantic communication.Furthermore,the challenges and problems faced by the existing image semantic communication technology are analyzed,aiming to provide useful references and insights for future research.Finally,the research method of task-oriented image semantic communication scheme is proposed to provide theoretical guidance for the development of image semantic communication technology. |
| Key words: image semantic communication semantic information theory task-oriented knowledge base |
