geometric image characteristics 中文意思是什麼

geometric image characteristics 解釋
幾何圖象特徵
  • geometric : n. 有幾何圖形的東西。adj. 1. 幾何學的，幾何圖形的。2. 按幾何級數增長的。adv. -rically
  • image : n 1 像，肖像，畫像；偶像。2 影像，圖像。3 相像的人（或物）；翻版。4 形像，典型。5 形像化的描繪。6...
  • characteristics : 產品性能描述
  1. Following the characteristics of medical image segmentation, this paper proposed a new spline geometric deformable model ( sgdm ), which can be presented as a set of ordered vertices connected by edges

    摘要根據醫學圖像分割的特點，建立了一種樣條幾何形變模型，它表示為一個有序的用邊線連接的頂點集合。
  2. In this paper, two parts of the body leg and head are tracked. the lower limb is tracked using geometric characteristics, the original image sequence is first transformed to the distance image sequence, and then the four joints of the leg are tracked on the distance image sequence. based on visual perception, the head is tracked using color information of face and matching is proceeded from coarse to fine matching, fuzzy pattern recognition is also applied during fine matching

    論文中，跟蹤了兩個局部部位腿部和頭部的運動，利用人體腿部的幾何特徵，將原始腿部圖像序列變換到相應的距離圖像上，然後對人體腿部的四個關節點運動進行了跟蹤；根據人類視覺識別特性，採用由粗到細的匹配過程和基於面部的色彩信息對圖像中的頭部進行了檢測，並且在細致匹配中利用了模糊模式匹配方法。
  3. 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。
  4. Abstract : geometric moment, the simplest moment function whose characteristics are invariant with respect to image plant transformations, finds many applications to object identification, object pose estimation ( image processing, image recognition and computer vision )

    文摘:幾何矩是一種最簡單的矩函數，當圖像在平面上變動時它具有不變的特性.在目標識別、目標姿態的計算和其它領域（如圖像處理、圖像識別和計算機視覺等）有廣泛的應用
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