Na Ren

Copyright Protection Based on Zero Watermarking and Blockchain for Vector Maps

Na Ren, Yazhou Zhao, Changqing Zhu et al. · ISPRS International Journal of Geo-Information · 2021 · 39 citations · Full text

Digital Watermarking, Vector Map Data, Engineering +12

A zero-watermarking scheme based on spatial topological relations for vector dataset

Na Ren, Shuitao Guo, Changqing Zhu et al. · Expert Systems with Applications · 2023 · 35 citations

Digital Watermarking, Data Hiding, Image Analysis +14

Screen-Cam Robust Image Watermarking with Feature-Based Synchronization

Weitong Chen, Na Ren, Changqing Zhu et al. · Applied Sciences · 2020 · 26 citations · Full text

Digital Watermarking, Data Hiding, Machine Vision +12

Zero Watermarking Algorithm for Vector Geographic Data Based on the Number of Neighboring Features

Qifei Zhou, Changqing Zhu, Na Ren et al. · Symmetry · 2021 · 25 citations · Full text

Engineering, Information Security, Information Forensics +16

Selective authentication algorithm based on semi-fragile watermarking for vector geographical data

Na Ren, Qisheng Wang, Changqing Zhu · 2014 · 24 citations

Engineering, Information Security, Biometrics +16