印字數印字模 的英文怎麼說
中文拼音 [yìnzìshǔyìnzìmó]
印字數印字模
英文
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Makes general analysis and research on human visual system the characteristicness of human visual system is the process being considered firstly for every image process technology, include watermark technology, in order to join the characteristicness of hvs and the watermark technology together, this paper analyses and researches the hvs theoretics particularly firstly. it build the aesthesia models and the jnd models after discussing eyes " biology configuration particularly and expatiating eyes " aesthesia process. these works provide the foundation for the later research of watermark channel capacity and the watetmark embedding intensity. 2
對人類視覺系統的特性進行了全面的分析和研究人類視覺系統的特性是任何圖像處理技術必須優先考慮的環節，數字水印技術也不例外，為了使人類視覺系統的特性和數字水印技術很好地結合，本文首先對人類視覺系統理論進行了全面細致的分析和研究，在詳細闡述了人眼的生理結構及人眼對顏色的感知過程的基礎上，建立了人眼的感知模型和人類視覺系統的jnd模型，這些工作為后來水印通道容量的研究、水印嵌入強度的確定等工作奠定了基礎。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。In this paper, we establish a visual model in ridgelet transform domain, and a new perceptual watermarking algorithm in the ridgelet domain is proposed. the ridgelet transform ( candes and donoho, 1999 ) was introduced as a new efficient multi - scale representation for functions that are smooth away from discontinuities along lines
論文從數字水印發展的現狀出發，對數字水印技術的發展、數字水印技術的基本原理及其通用模型、數字水印技術主要應用的領域及其性能要求、數字水印的分類與典型演算法等多個角度進行了綜述。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。A new algorithm improving watermarking robustness based on a self - reference concept and exploits special autocorrelation features ( acf ) of a spatial template is proposed in this paper
摘要提出一種改進的基於自參考概念和空間模板的自相關函數特性的數字水印演算法。Just 59 percent of vietnamese consumers thought models were too thin, followed by 64 percent of indians and 63 percent of japanese
的越南消費者認為模特過瘦，這一數字在印度和日本分別為64 %和63 % 。New adaptive audio digital watermarking blind algorithm based on human auditory system
基於聽覺模型的自適應音頻數字水印盲檢演算法This paper employed the characteristics of the hvs ( human visual system ) responded to the image contents and realized the two kinds of image - adaptive watermark algorithm, one is in the spatial domain based on the statistics theory and another in the dct domain with meaningful digital watermark
本文利用hvs人類視覺系統模型，提出了圖像內容自適應的數字水印演算法，分別實現了時空域中的統計原理水印演算法和dct變換域中的有意義水印演算法。Experimental results show that the proposed techniques have good imperceptibility and can survive of common image processing operations and jpeg lossy compression with high robustness. the second one considered the watermarking system as a special digital communication system and introduced the ecc as channel coding technique. by using the turbo coding technique, we are able to reduce the watermark bit error rate and improve the robustness of the watermark so as to make counterfeiting attacks more difficult
本文在保證水印不可見性的基礎上和載體圖像的允許降質范圍內，利用rbf神經網路技術實現數字水印信息的最大強度嵌入以增強數字水印抵禦各種惡意攻擊的穩健性;在通信論和信息論模型基礎上，引入ecc （差錯控制編碼）技術降低水印的誤碼率，使得提取水印信息更加可靠，使可能的水印攻擊變得更加困難，從而獲得更好的水印穩健性和可靠性。In this paper, we introduced two watermarking channel models and analyzed discrete cosine transform domain ( dct domain ) watermarking channel model for copyright protection of still digital images
在本文中，我們介紹了兩種水印通道模型，同時分析了一種用於靜態圖象版權保護的oct變換域的數字水印通道模型。Research on wavelet digital watermarking algorithm based on chaotic property and visual model
基於混沌特性和視覺模型的小波數字水印演算法研究But, though considerable process has been made in the last ten years, digital watermarking is still in its infancy, and much interesting work remains to be done this thesis addresses some problems in the gray - scale image digital watermarking that are summarized below : 1 ) whereas the basic theory of digital watermarking is still very poor, a digital watermarking mathematic model based on imperceptibility and robustness is presented by analysising the characteristic of digital watermarking ; 2 ) based on the model constructed above, by defining the measures of capacity and robustness of digital watermarking, an objective method for evaluating the digital watermarking is introduced and used to analysis some algorithms ; 3 ) whereas geometric distortion always influences the restoration of watermark, we advocate to enhance the robustness against geometric distortion by restoring the image which has been distorted by geometric transformation, and a method is designed for estimating the parameters of geometric transformation ; 4 ) based on the conclusion discussed above, and combined with the masking effects of hvs, a novel public meaningful gray - scale image digital watermarking is designed by analysising the characteristics of image gray - scale interpolation and haar wavelet transformation. the experimental results show that the method is indeed powerful ; 5 ) whereas many image digital watermarking schemes, which embed watermark by modifying the values of pixels in spatial domain and transformed domain, are confronted with the conflict between the imperceptibility and robustness, we advocated to use some stable digital characteristics of host image as watermark and a algorithm based on hermite matrix is designed
本文重點對灰度圖象數字水印技術進行研究，主要工作如下： 1 ）鑒于目前數字水印的理論研究比較薄弱的現狀，本文通過分析數字水印的特點，建立了一個數字水印的數學模型，為進一步研究數字水印打下了基礎； 2 ）根據以上建立的模型，通過引入容量和穩健度的概念為數字水印提供了一個客觀評價方法，並對一些數字水印演算法進行了分析； 3 ）為增強數字水印抵抗幾何攻擊的能力，研究了受幾何攻擊的圖象的復原問題，並給出了一個計算圖象幾何變換參數的方法； 4 ）通過分析圖象灰度插值演算法和haar小波變換的特點，結合hvs的掩蔽效應，設計了一個公開的有意義數字水印演算法，實驗結果表明本演算法具有較強的穩健性； 5 ）目前許多水印演算法都是通過在空域或頻域修改象素值的方法嵌入水印的，這種方法面臨著透明性和穩健性的矛盾，為解決這個矛盾，本文提出以圖象的某些穩定的數字特徵為水印的觀點，並結合hermite矩陣的特點設計了相應的水印演算法，實驗結果表明該演算法具有較好的穩健性。A digital products copyright protection system model based on digital watermarking has been proposed as the final result of this part. in the robust digital watermarking systems part, a robust watermarking embedding mechanism and a watermarking detector based on minimum error rate are presented
在數字水印系統部分，本文提出了基於局部區域統計量的魯棒數字水印的嵌入模型和基於最小錯誤率的水印檢測模型，並進行了理論推導。This protocol is implemented based on lsb watermark technology. its highlight points are : the verification and authentication data are embedded into the images " data, any changes of pixel values and changes in image size due to scaling or cropping as well as block swapping in images or corresponding block swapping between images can be detected and located, logo image is unnecessary
本文提出的基於數字水印技術的數字圖像完整性與身份驗證技術綜合了信息安全技術中有關消息完整性與身份驗證的方法與數字水印技術，並充分考慮到了數字圖像的特殊性，提出了兩種協議模型：無仲裁協議模型與有仲裁協議模型。Connectors with assessed quality, for use in d. c., low - frequency analogue and in digital high speed data applications - printed board connectors - detail specification for two - part single - pole connectors, for multiple uses on plug - in units, with pre - centring, coding and early mating features, having a metric grid in accordance with iec 60917
直流低頻率模擬及高速數字數據系統用已經過過質量評定的連接器.第4部分:印製電路板聯接器.第102節:帶前定心編碼和預配合部件的米制多用途插件用雙部分單極聯接器的詳細規范Based on characteristics of human visual system ( hvs ), including texture / contract masking property and sensitivity of frequency, and combining with wavelet multi - resolution theory, a novel just noticeable difference ( jnd ) model that can embed watermark adaptively is proposed
用該模型可使指紋特徵信息生成的數字水印自適應嵌入合成的指紋圖像中，提高了指紋認證系統的可信度。By designing an algorithm and analyzing experiment results, a novel method based on digital watermarking, which is put for - ward in this paper, has the following characteristic to the anti counterfeit of commercial bills : ( 1 ) the method is very easy to realize. ( 2 ) it can resist scanning and typing. ( 3 ) both scramble encryption and watermark technology have improved the security of the algo - rithm
通過演算法設計和模擬實驗分析，本文提出的數字水印演算法對票據防偽具有以下特點: （ 1 ）演算法簡單易實現（ 2 ）能夠抵抗票據的列印掃描（ 3 ）置亂加密和水印兩種技術的結合，提高了演算法的安全性。Connectors with assessed quality, for use in d. c., low - frequency analogue and in digital high speed data applications - sectional specification - printed board connectors
直流低頻模擬及高速數字數據系統用經質量評定的連接器.分規范.印製電路板用連接器Connectors with assessed quality, for use in d. c., low - frequency analogue and in digital high speed data applications - printed board connectors - blank detail specification
直流低頻模擬設備和高速數字數據應用設備用已經過質量評定的連接器.印製電路板連接器.空白詳細規范The research works of this article mainly include several aspects as follows : 1. wavelet analysis theories is researched, which include the first and the second generations of wavelet transformation, the basic concept, principle and algorithm, especially the multi - resolution of wavelet and the lifting scheme theory of the second - generation wavelet. the research contents about digital watermark are introduced systematically, and the general principle and universal model are summarized and the primary applied prospect is also pointed out
本文的研究工作主要包括以下幾個方面: 1 .研究了小波分析理論，包括第一代和第二代小波變換的基本概念，原理，演算法，特別是小波的多分辨分析和第二代小波的提升框架理論;系統地介紹了數字水印研究內容，總結了它的一般原理及通用模型，並指出了其主要應用前景，分析了數字水印的各種典型演算法、以及主要的攻擊方式。分享友人