digital watermark 中文意思是什麼
digital watermark
解釋
數字水印-
Research on stationarity of apperception - based digital watermark to audio informations
基於感知數字水印對音頻信息穩健性影響的研究 -
Novel adaptive audio digital watermark algorithm
一種新的自適應音頻數字水印演算法 -
As an effectively complemental way for traditional encryption means, with the development of information, high attention has been given to the digital watermark technology by international corporations and the academic community
隨著信息化建設的加快，數字水印作為傳統加密方法的有效補充手段，已受到國際企業界和學術界的高度關注。 -
An adaptive audio digital watermark method based on dwt
的自適應大容量音頻水印演算法 -
It mainly includes the following several aspects : 1. recapitulative summary and analysis of basic technology of digital watermark is presented from the origin, state of art, basic principles, characteristics and classifications of watermark
主要在以下幾個方面作了做出了努力： 1 、從水印的由來、現狀、基本原理、特點、分類與主要用途等方面對數字水印技術基本知識作了概括性的總結與分析。 -
Resemble with the digital watermark methods of the other media such as still image and video, digital audio watermark must account for some problems which consist of perceptual transparency, data bit rate, robustness, security and real - time etc. the robustness of watermark is vital to the practical application, which requires the watermark providing with significant data since it suffered from some intended attacks or unintended revisal
與靜態圖像、視頻等數字水印方法類似，音頻水印的研究主要須解決感知透明性、數據嵌入率、魯棒性、安全性以及實時性等問題。水印演算法的魯棒性對于實際應用來說是至關重要的，它要求數字水印在遭受有意的攻擊或無意的修改後，仍能提供有意義的數據，這一性能對版權保護的應用顯得尤為突出。 -
A digital watermark protocol used for copy tracing
用於盜版追蹤的數字水印協議 -
An arithmetic of digital watermark resistant to image rotation
抗旋轉的數字圖像水印演算法 -
Multi - embedding and extracting algorithm of digital watermark
數字水印重復嵌入及提取方法 -
Main ideas as follows : research of audio digital watermark algorithm based on fast fourier transforms and psychoacoustic auditory model
主要工作有:基於快速傅立葉變換與聲學模型的音頻數字水印演算法研究。 -
Generally, it can be divided into three parts : the design of s - boxes based on chaotic systems ( fixed or dynamic s - box ), the design of various block ciphers based on chaotic systems, and the application in digital watermark of chaotic ciphers
本文關于混沌分組密碼及其應用的研究主要涉及下面三個問題:基於混沌系統的s盒設計（固定的和動態更新的s盒） ;基於混沌系統的不同類型的分組密碼設計;混沌分組密碼的在數字水印方面的應用。 -
In recent year, with the development of relational database, the digital watermark technology for databases, which embeds watermark in relational database, has become popular
近年來，隨著關系數據庫廣泛使用，又興起了在關系數據庫中嵌入水印信息的數據庫水印技術。 -
7 ) in fsca, all operations of managers are recorded in system log, and digital watermark technology is used to ensure authoritativeness, accountability, integrity of the log
7 ）採用數字水印日誌技術。 fsca系統嚴格記錄管理員的操作日誌，並且日誌採用數字水印技術保證其權威性、不可否認性和完整性。 -
The digital watermark technology research is precisely developing rapidly under such kind of application request. the digital watermark is divided into text watermark, image watermark, audio frequency watermark and video frequency watermark from the carrier situation. at present, the digital watermark technology research has obtained the quite gratifying achievement already and its application already permeates many aspects of life
本論文先後介紹了數字水印、視頻數字水印的一些基本概念和相關情況，以及視頻水印方案的一些典型演算法;著重針對數字水印在電視領域的應用，闡述了應用於廣播監控的解決方案以及相應的水印嵌入和提取演算法。 -
The technology of information hiding, digital watermark and its algorithm
信息隱藏技術及其演算法 -
The technology of the text digital watermark is a cross marginal subject which relates to researches of cryptography, graphics, science of vision, chinese information processing, image processing, communications, and information security, etc and is a very new research direction in theory at present
文本數字水印技術是一個涉及密碼學、圖形學、視覺科學、中文信息處理、圖像處理、通信及信息安全等學科的交叉邊緣科學，目前在理論上是很新的一個研究方向。 -
This thesis presents a new audio digital watermark algorithm based on has model. the steps : first, it classifies the signals through fft ; second, calculating the tones, noise and the overall masking threshold of different phases through has, and changing the energy value of tones which are more than that of the overall masking threshold to embed the watermark information
提出了一種基於人類聽覺系統（ has ）模型的音頻數字水印演算法，該演算法首先對信號進行分段離散快速傅立葉變換（ fft ） ，再根據人類聽覺系統模型計算出各段的類純音、類噪音以及各段的總體掩蔽閾值，通過改變大於總體遮蔽閾值的類純音的能量值來嵌入水印信息。 -
In recent years, the research about the audio digital watermark technology is developed quickly. especially the technology of audio digital watermark in the transform domain, make research have practicability because it can embed information to sensitive area of the carrier
近幾年來，有關音頻數字水印技術的研究工作發展很快，尤其在變換域音頻信息的數據嵌入技術，由於其能將信息嵌入到載體的敏感區域，使得研究更具有實用性。 -
The thesis first gives an overview of the image digital watermark techniques, presents all kinds of classical watermark algorithms and the disadvantages in those algorithms
本文先概要地介紹圖像數字水印技術，簡單闡述了目前研究的各種典型演算法，並分析各演算法存在的主要缺點。 -
Then we use lifting scheme improve wavelet analysis methods and proposed a kind of digital watermark algorithm based on error - correcting coded which is a method of communication theory and is to correct watermark signal
然後在這一水印演算法的基礎上，使用小波提升技術來改進小波分析方法，再使用通信理論中的糾錯編碼方法對水印信號進行糾錯控制，並提出了一種基於糾錯編碼的數字水印演算法。
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