A hybrid domain-based watermarking for vector maps utilizing a complementary advantage of discrete fourier transform and singular value decomposition
C Qu, J Du, X Xi, H Tian, J Zhang - Computers & Geosciences, 2024 - Elsevier
Digital watermarking plays a crucial role in the copyright protecting of vector maps. Due to its
solid theoretical foundation, Discrete Fourier transform (DFT) is frequently used in the …
solid theoretical foundation, Discrete Fourier transform (DFT) is frequently used in the …
[HTML][HTML] Robust watermarking scheme for vector geographic data based on the ratio invariance of DWT–CSVD coefficients
C Qu, X Xi, J Du, T Wu - ISPRS International Journal of Geo-Information, 2022 - mdpi.com
Traditional frequency-domain watermarking algorithms for vector geographic data suffer
from disadvantages such as the random watermark embedding position, unpredictable …
from disadvantages such as the random watermark embedding position, unpredictable …
[PDF][PDF] 运用混合域比值不变性的矢量地图水印算法
奚旭， 瞿成意， 侯渲， 杜景龙 - watermark, 2024 - cjig.cn
目的传统基于频率域的矢量地图水印算法往往通过直接修改变换系数实现水印嵌入,
嵌入位置随机, 且嵌入强度难以控制, 实用能力受限. 为此, 本文挖掘了离散小波变换(discrete …
嵌入位置随机, 且嵌入强度难以控制, 实用能力受限. 为此, 本文挖掘了离散小波变换(discrete …
[HTML][HTML] A novel infringement detection method for GIS vector data
There is undoubtedly a groundswell of support for the concept of geographic data sharing
with the rapid development and wide-ranging application of geographic information science …
with the rapid development and wide-ranging application of geographic information science …
[PDF][PDF] Spatial Data Mining Approaches for GIS Vector Data Processing
A Abubahia - 2018 - researchportal.port.ac.uk
Abstract Geographical Information Systems (GIS) are very useful system in capturing,
storing, manipulating, analysing, managing, and presenting spatial data. GIS systems can …
storing, manipulating, analysing, managing, and presenting spatial data. GIS systems can …