Hua Sun

Title: Hua Sun - Innovator in Watermarking Information Security Technologies

Introduction

Hua Sun is a prominent inventor based in Changsha, 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

Hua Sun 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

Hua Sun has worked with notable 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 and their applications.

Collaborations

Hua Sun has collaborated with colleagues such as Xingxiang Jiang and Qianwen Zhou. Their joint efforts have further advanced the research and development of watermarking methods.

Conclusion

Hua Sun's innovative contributions to watermarking information security technologies highlight his role as a leading inventor in this field. His patented zero-watermarking method for BIM data showcases his commitment to enhancing data security.