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Stereoisomers

Stereoisomers

On the basis of mirror symmetry, stereoisomers of an organic molecule can be further classified into diastereomers and enantiomers. Diastereomers are stereoisomers that are not mirror images of each other. Substituted alkenes, such as the cis and trans isomers of 2-butene, are diastereomers, as these molecules exhibit different spatial orientations of their constituent atoms, are not mirror images of each other, and do not interconvert. Here, the interconversion is suppressed due to...

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Updated: May 3, 2026

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Published on: February 12, 2014

针对多个遥感图像的以安全为导向的稳定图形有效载荷分配.

Tian Wu¹, Xuan Hu¹, Chunnian Liu²

¹Digital Literacy and Skills Enhancement Research Center, Jiangxi Province Philosophy and Social Science Key Research Base, School of Public Policy and Administration, Nanchang University, Nanchang, 330031, China.

Scientific reports

|February 27, 2024

概括

此摘要是机器生成的。

这项研究通过使用预先训练的网络来分析远程传感图像纹理复杂性来增强多图像隐形图像的安全性. 适应性有效载荷分配策略最大限度地提高了嵌入容量,同时确保了对steganalysis的安全性.

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Last Updated: May 3, 2026

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Published on: February 12, 2014

Early Detection of Cyanobacterial Blooms and Associated Cyanotoxins using Fast Detection Strategy

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Published on: February 25, 2021

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Published on: June 6, 2025

科学领域:

计算机科学计算机科学
信息安全信息安全
遥感遥感遥感遥感

背景情况:

多图像隐形图像隐藏了多个载体中的数据,远程传感图像因其复杂的纹理而受到青.
当前的方法往往侧重于个别图像的复杂性,可能会损害整体安全性.
有效的隐形图学依赖于最佳的覆盖选择和有效载荷分配.

研究的目的:

引入一个以安全为中心的方法,用于在多图像遥感中进行石图的有效载荷分配.
增强多图像稳定学对稳定分析的弹性.
通过使用遥感数据,提高石谱系统的安全性和容量.

主要方法:

利用预先训练的steganalysis网络来量化纹理复杂性,并将其与远程传感图像中的安全性相关联.
为多个图像开发了一个适应性的有效载荷分配策略.
嵌入的有效载荷接近每个图像的最大隐形图像容量,同时保持嵌入安全性.

主要成果:

拟议的方法论在覆盖选择和有效载荷分配方面表现出卓越的性能.
实现了与当代石位分析工具相比的增强不可检测性.
量化的纹理复杂性直接与石图嵌入的安全性提高有关.

结论:

这种以安全为导向的方法显著加强了多图像隐形图像.
适应性有效载荷分配有效地平衡了容量和安全性.
该方法为隐藏在遥感图像中的安全信息提供了强大的解决方案.