mathematical sign 中文意思是什麼
mathematical sign
解釋
數學符號- mathematical : adj 數學（上）的，數理的；嚴正的，精確的。 mathematical instruments 制圖儀器。 mathematical logic...
- sign : n 1 記號，符號。2 信號，暗號。3 （示意的）姿勢，手勢；表示。4 招牌，廣告（牌）。5 形跡、痕跡〈常...
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With the development of communication, information and electronic technology and computer network, intelligent transport system ( its ) is paid more and more emphasis, it contains many parts, such as vehicle type recognition and license plate recognition. in this paper, we introduce svm to the field of its, the main work is described as follows : ( 1 ) we summarize the latest research achievements and development of its, present the conceptions of slt and the principles of svm ; ( 2 ) taking the traffic sign as examples and adopting hough transform in the stage of feature extraction, we introduce svm to the problem of shape recognition and compare the experimental results with traditional learning methods. ( 3 ) then we use svm to settle the vehicle type recognition problem, where we utilize the wavelet analysis and mathematical morphology method to extract the figure feature
本文將支持向量機引入智能交通系統領域，主要進行的工作如下： （ 1 ）整理總結了國內外學術界關于統計學習理論方面的研究成果，介紹統計學習理論的基本概念和支持向量機的基本原理； （ 2 ）在形狀識別問題中以交通標志圖像作為實驗對象，利用hough變換進行特徵提取，在識別階段利用支持向量機方法進行分類，並與神經網路等傳統學習方法對比； （ 3 ）將支持向量機應用於車型識別問題中，針對收費站採集的汽車圖像，首先採用小波分析和數學形態學的方法提取其外形特徵，在識別階段利用支持向量機方法進行分類，並與其他傳統學習方法進行了對比； （ 4 ）將支持向量機應用於車牌識別問題中，車牌識別包括車牌定位、車牌字元分割以及字元識別三個步驟，先採用數學形態學方法對車牌區域進行定位，然後採用top - hat變換等方法分割車牌字元，在識別階段採用支持向量機演算法進行字元識別，取得了較為滿意的結果。 -
By posing the difference on mathematical models between blind detection and non - blind detection, we devise the sign correlation detector ( scd ) and the normalized liner correlation detector ( nlcd ) based on the laplacian distribution model and the local gaussian distribution model of the host signal respectively. a series of experiments in dct domain and dwt domain show that these two detectors are more robust than linear correlation detector ( lcd )
基於局部最優檢測理論得到了廣義高斯分佈模型下盲檢測器的一般形式?幅度一符號相關檢測器，通過計算幅度一符號相關檢測器相對于線性相關檢測器的漸進相對效率，建立了漸進相對效率與宿主信號形狀參數之間的關系，從理論上證實了幅度一符號相關檢測器的高效性。
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