Yujing Liu

Title: Yujing Liu: Innovator in Watermarking Technologies

Introduction

Yujing Liu is a notable inventor based in Shaoyang, China. He has made significant contributions to the field of watermarking information security technologies. His innovative approach addresses critical challenges in the protection of Building Information Modeling (BIM) data.

Latest Patents

Yujing Liu holds a patent for a "Zero-watermarking method and device for BIM data." This invention provides a solution to the limitations of existing zero-watermarking methods, which are vulnerable to primitive attacks. The method constructs a mapping relationship between primitive clusters and watermarking bits, utilizing the vertical stability of a model. By calculating norms of primitives within each cluster, the method employs the positivity and negativity of norm skewness measurements as eigenvalues to create a binary sequence. An XOR process is then performed on this binary sequence and an original watermarking sequence to establish the zero-watermarking for BIM data. Experimental results demonstrate that this method possesses uniqueness, robustness, and security.

Career Highlights

Throughout his career, Yujing Liu has worked with esteemed organizations, including the Third Surveying and Mapping Institute of Hunan Province and Nanjing Normal University. His experience in these institutions has contributed to his expertise in watermarking technologies.

Collaborations

Yujing Liu has collaborated with notable colleagues, including Xingxiang Jiang and Qianwen Zhou. Their combined efforts have further advanced the field of watermarking and information security.

Conclusion

Yujing Liu's innovative contributions to watermarking technologies, particularly in the context of BIM data, highlight his role as a significant inventor in this field. His work continues to influence advancements in information security.