水文演算 的英文怎麼說

中文拼音 [shuǐwényǎnsuàn]
水文演算 英文
hydrologic routing
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 文 : Ⅰ名詞1 （字） character; script; writing 2 （文字） language 3 （文章） literary composition; wri...
  • 演 : 動詞1 （演變; 演化） develop; evolve 2 （發揮） deduce; elaborate 3 （依照程式練習或計算） drill;...
  • 算 : Ⅰ動詞1 （計算數目） calculate; reckon; compute; figure 2 （計算進去） include; count 3 （謀劃;計...
  • 水文 : hydrology水文測驗 hydrologic survey; 水文成因分析 hydrologicall genetic analysis; 水文地理學 hydr...
  • 演算 : perform mathematical calculations; calculation; calculus演算器 exerciser
  1. After common contour map data is studied and analyzed deeply, a complementary watermarking algorithm is proposed

    本文在對地形圖數據特徵進行深入研究分析的基礎上，提出了一種互補水印演算法。
  2. The watermark algovithm can resist the physical transfer of printing and scanning by applying techniques such as fixation normalization mutually which can secure the embedding position, chaotic encipher encryption, multipassage embedding and so on. what ’ s more, the watermark designed in this essay is binary image. it can bear a large amount of information

    本文綜合運用了歸一化相關確定嵌入位置、混沌加密、多通道嵌入等技術，使得本文所設計的水印演算法能夠抵抗印刷和掃描的物理轉換過程，同時本文所採用的水印是二值圖像，能夠承載大量的信息。
  3. The advent of the internet and the wide availability ofcomputers, scanners and printers make digital data acquisition, exchange and transmission a simple task. however, making digital data accessible to others through networks also creates opportunities for malicious parties to make salable copies of copyrighted content without permission of the content owner. digital watermarking is likely to be a potential solution to this problem. digital watermarking has been proposed as a solution to the problem of copyright protection of multimedia documents in networked environments. it makes possible to embed a watermark ( such as identification data, serials number, text or image etc. ) to multimedia documents allowing copyright protection, secret communication, document authentication and so on. in this paper, we present a new digital image watermarking method based on svd ( singular value decomposition ), and then give some theoretical analysis about the algorithm. extensive experimental results show that this method is much more robust than other methods presented before

    隨著計算機和網路技術的飛速發展，數字圖像、音頻和視頻產品愈來愈需要一種有效的版權保護方法，另外通信系統在網路環境下的信息安全問題也日益顯露出來.數字圖像水印技術為上述問題提供了一個潛在的解決方案.所謂水印技術就是將數字、序列號、文字、圖像標志等版權信息嵌入到多媒體數據中，以起到版權保護、秘密通信、數據文件的真偽鑒別和產品標志等作用.本文提出了一種新的基於奇異值分解的數字水印演算法並且對該方法的理論基礎給出分析.實驗結果表明這種方法要比目前提出的流行演算法魯棒
  4. Finally, in order to test the imperceptibility and robustness of the two improved algorithms, a lot of experiments were done

    本文對兩種水印演算法均進行了大量的不可見性和魯棒性實驗。
  5. Finally, a lot of experiments are performed to test the imperceptibility and robustness of the private watermarking algorithm and blind watermarking algorithm and the two improved algorithms

    最後對明文水印演算法和盲水印演算法及其改進的演算法均進行了大量的不可見性和魯棒性實驗。
  6. Then we make a deep research on human visual system and wavelet transformation, and a new wavelet watermarking method based on hvs is proposed to solve the conflict between robustness and imperceptibility

    在此基礎上，論文又將人眼視覺系統和小波變換結合在一起，提出了一種基於hvs的小波水印演算法，人眼視覺模型的應用緩解了演算法魯棒性和不可見性間的矛盾。
  7. With the development of computer technology in hydrographic field, usage of many kinds of advanced and complicate algorithms is not a problem. but because of complexity of geography, acquirement of primitive data needed in hydrographic calculation is still hard to tackle, for example, the length of river segment, the width of every node of every river segment

    隨著計算機技術的發展，在水文學及水資源學科，運用各種先進、復雜的專業演算法求解已經不成問題，但由於地形地貌的復雜性，水文計算中所需的原始資料，如河段的長度，河段各斷面上各個節點處的河寬等數據的人工實地採集工作仍然是很費時費力的事。
  8. It takes use of pseudo - random technology, dynamic adaptive technology, multi - channel technology, random position embed technology and so no. so the digital watermarking can resist the physical process of printing and scanning. at the same time, the watermark is binary image which includes a great deal of information, such as personal id, secret information, even a piece of map

    本文特別針對印刷和掃描給數字圖像帶來的誤差的問題，設計了一種新的水印演算法，綜合運用了偽隨機處理技術、動態自適應技術、不同應用選擇不用頻帶處理技術、隨機位置嵌入技術、多通道嵌入等技術，使得本文所設計的水印演算法能夠抵抗印刷和掃描的物理轉換過程，同時本文所設計的水印是二值圖像，能夠承載大量的信息，例如個人id 、機密信息、商標標識，甚至可以是一幅地圖。
  9. A watermarking algorithm is implemented using the proposed technique for still images

    此文為靜止圖像設計了具體的水印演算法。
  10. It summarize the algorithm model and attack means of the watermark and generalized the existing picture watermark algorithm

    本文首先對水印技術進行了概括性介紹，總結了水印演算法模型和攻擊手段，概括了現有的圖像水印演算法。
  11. In order to implement copyright protection and content authentication of the vq compressed data, the research work of this thesis focuses on the vq based watermarking algorithm

    為了實現對矢量量化編碼多媒體數據的版權保護和內容認證，本文研究基於矢量量化的數字水印演算法。
  12. In this paper, an algorithm based on watershed transformation and fuzzy logical catchment basins combination is proposed to suppress or remove the feature of natural background, and applied to infrared object boundary detection and labeling

    文中在分水嶺演算法的基礎上，結合模糊邏輯方法，對自然背景下的紅外人工目標的邊界檢測和分割以及紅外背景的抑制進行了探討。
  13. This method has many advantages compared to the latter and is testified by many images. ( 2 ) because fractal coding has the characteristic of high compression ratio, this thesis designed a spatial self - embedding watermarking technique. after self - embedding, it can detect any changes to a watermarked image as well as localizing the areas that have been tampered

    （ 2 ）鑒于分形圖像壓縮具有很高的壓縮比且重構圖像效果好的優點，本文利用分形壓縮實現了一種空域自嵌入水印演算法，不但能對篡改區域進行有效定位，而且具有修復功能。
  14. If possible try to recover portions of the image that have been tampered without accessing the original image. in the past, several techniques and concepts based on data hiding or steganography have been introduced as a means for tamper detection in digital images and for image authentication - fragile watermarks, semi - fragile watermarks, and self - embedding watermarks. the research of this thesis mainly includes self - embedding and semi - fragile watermarks

    目前用於數字圖像完整性驗證及自修復的數字水印方案主要有完全脆弱性水印、半脆弱性水印、自嵌入水印等，本文主要研究自嵌入及半脆弱數字水印，分別從空域及變換域角度詳細分析當前國內外現有的各種演算法，指出其不足之處，並提出了相應的改進演算法，實驗結果表明本文演算法的有效性與實用性。
  15. We propose several watermarking techniques after analyzing other watermarking methods detailedly. the main contributions can be summarized as following : ( 1 ) based on previous work, we proposed an improved spatial self - embedding watermarking technique. we save the quantized dct coefficients using group encoding while not using bit matrix which restricts saving bit length of each dct coefficient

    本文的創新之處總結如下： （ 1 ）提出了一種改進的具有修復功能的空域自嵌入水印演算法，利用分組編碼保存量化后的dct系數，改善了修復效果，克服了以往使用位圖矩陣的不足，具有通用性與實用性。
  16. It is also possible to recover portions of the image which have been tampered. experiments on real images verify the effectiveness of the proposed technique. ( 3 ) since the current self - embedding watermarking techniques are too fragile to resist noise or jpeg compression, we proposed a self - embedding method based on jpeg images which plays an important role in current internet environment

    （ 3 ）由於現有的空域自嵌入水印演算法大多數是對位圖圖像嵌入水印，在抗jpeg壓縮方面顯得過于脆弱，因此本文實現了一種直接對jpeg圖像進行自嵌入的數字水印演算法，具有檢測篡改及修復功能，對于當今網路時代來講具有重要意義。
  17. We present different multipurpose watermarking schemes in different applications fields : image retrieval and copyright protection ( robust watermark ) ; image retrieval and copyright notification ( visible watermark ) ; image retrieval and content integrity verification ( fragile watermark ). our retrieval system consists of two main phases, the offline process and the online retrieval process

    本文主要從三種不同的角度研究不同的多功能水印演算法:用於圖像檢索和版權保護（魯棒水印） 、用於圖像檢索和版權通知（可見水印） 、用於圖像檢索和內容完整性驗證（脆弱水印） ，分別建立離線系統和在線檢索系統，進行圖像檢索模擬實驗。
  18. Two kinds of digital video watermarking schemes with hierarchical multiresolution spatio - temporal algorithm, non - blind and blind watermarking algorithm, based on video scene shots are presented in this paper. they are both based on digital video scene segmentation and 3d wavelet transform

    本文提出了兩種基於視頻流的場景分割和視頻序列的三維小波變換的空時多分辨數字水印演算法，即非盲水印演算法和盲水印演算法。
  19. 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。
  20. An improved adaptive image watermarking algorithm based on block dct and arnold shuffling is proposed : with shuffling techniques in image watermarking, you can not only prevent illegal users from riddling the content of the images, but also disperse the distributing of error bits in order to enhance the robustness of watermarking

    提出了一種改進的基於分塊dct （ discreteconsinetransform ）變換和arnold變換的自適應圖像水印演算法:本文將信息置亂技術用於圖像水印中，一方面可以使非法使用者無法破譯圖像的內容，另一方面可以盡可能的分散錯誤比特的分佈，從而提高數字水印的魯棒性。
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