gaussian model 中文意思是什麼
gaussian model
解釋
高斯模式-
Two consecutive frames was subtracted to pick up background pixel in this method, then the gaussian model of every pixel was built
該方法基於幀間差分法檢測出幀中的背景像素點后，再確立每個點的高斯模型，最後運用背景差分準確檢測出場景中的運動目標。 -
There are three steps of the concrete process of the algorithm : initial localization, separating image and confirmation. firstly, single gaussian model is used to imitate skin - color distribution, meanwhile, skin probability images which is smoothly disposed using middle wave is calculated to attain the initial localization. secondly, in order to separate the latent face region, it uses multimodal information that includes the region growing 、 the hue and brightness 、 skin probability images etc. at last, it adopts the criterion of morphology analysis and face characteristic draw to confirm the latent region
演算法的具體過程主要分為三個階段:人臉初定位、人臉分割和人臉確認，首先採用高斯模型來模擬膚色分佈並構造出膚色概率圖進行人臉的初定位，並對膚色概率圖採用中值濾波進行平滑處理，接著利用區域生長準則和融合色度、亮度以及膚色概率圖等多源信息相結合的方法對圖像進行分割，以達到分割出潛在臉區的目的，最後採用人臉整體形狀的確認準則和人臉特徵提取的確認準則相結合的方法對潛在臉區的最終確認。 -
This paper presents a new face detection algorithm for color video images based on skin color and multimodal information fusion. first, this paper presents a new means for selecting skin samples ; and then comparing skin distribution in the eight color spaces and analyzing the adaptability for different skin patterns, poses a face initial orientation ' s method which uses the single gaussian model in the tsl color spaces, and calculates skin probability images ; afterwards comprehensive comparing three typical threshold value separating algorithms, put forwards a face separating method which bases on region growing and fuses multimodal informations ; final, raises a face confirming algorithm which fuses three shape features
首先提出了?種新的膚色樣本選取方法；然後通過對八種色空間膚色分佈的比較以及不同膚色模型適應性的分析，提出了在tsl色空間上用單峰高斯模型模擬膚色分佈，求得膚色概率圖進行人臉初定位的方法；隨后在綜合比較三個典型閾值化分割演算法的基礎上，提出了融合多源信息進行區域生長分割人臉的演算法；最後提出了融合三個形狀特徵的人臉確認演算法。 -
At present, signal pulses produced by directly modulated laser diodes have been used in optical fiber communication systems. the experiment reveals that the optical pulses from directly modulated laser diodes are far from gaussian and have near - rectangular temporal profiles with much sharper leading and trailing edges, and then a super - gaussian model, which assumes that an incident optical pulse has a super - gaussian profile, may be more suitable
但在實際的光通信系統中，人們常採用由直接調制半導體激光器產生的光脈沖作為信號脈沖，而實驗結果表明這種脈沖具有比高斯脈沖更為陡峭的前沿和后沿，其脈沖形狀更接近於超高斯分佈，並且通常還帶有一定量的啁啾。 -
The relationship between volume of each part of model and its surface area can be described by gaussian model
流域模型各部分相對體積與其表面積的變化關系可由gaussian模型來描述。 -
Polynomial - weighted technique was adopted to assess the results of the experimental semivariogram function fitting results and based on the results selected the gaussian model with nugget effect as the fitting model. 100 times of simulation were carried out on the as distribution condition in the study area
採用加權多項式法，對經驗半變異函數擬合結果進行評價，並根據結果選擇了帶塊金效應的高斯模型作為擬合模型對研究區砷分佈情況進行了100次模擬，模擬結果平穩。 -
Topography fractal dimension related with process of development of watershed physiognomy and represented degree of watershed development, v ) sediment yield intensity of watershed model reflected erosion characteristic of watershed model in different development phase. simulating experiment indicated that sediment yield intensity took on the trend that they changed from small to big then decreased gradually. the relationship of average sediment transport rate and sediment yield rate per mm rainfall with topography fractal demension is expressed by gaussian model and this model is similar with relationship between volume and surface area
（ 5 ）流域模型產沙強度的變化反映了流域模型在不同發育階段的侵蝕特徵，模擬試驗研究結果表明：在整個流域模型地貌地貌的發育過程中，其產沙強度呈現由小到大，然後又逐漸減小的總體趨勢，流域模型單位降雨產沙率及平均輸沙率與地形分維數表現為gaussian模型關系，其關系形式與結論3中相對體積和表面積之間關系相似，進一步說明了以地形分維數表達地形變化的合理性。 -
The background subtraction method is used to retrieve the foreground, and the mixture gaussian model is used to model the background, during the modeling, the improved k - means algorithms is applied to improve the speed of background modeling ; 2. in the process of the background updating, the updating algorithms based on statistical average is used to update the background, compared to the traditional background updating methods, it improves the speed of the background updating ; 3. to solve the problem that the detection method based on gaussian shadow model detects the shadow inaccurately under some situations, a novel algorithm based on the body color vector matching is presented to detect and eliminate the shadow
本文在總結和分析了國內外相關研究工作的基礎上，針對運動物體檢測與提取中如何檢測與提取前景區域以及如何檢測與去除陰影的問題開展研究，其主要研究內容和成果如下: 1 .採用背景減除法提取前景區域，利用混合高斯模型進行背景建模，建模過程中，引入了改進的k -均值演算法，加快了背景建模的速度，提高了背景建模的質量; 2 .在背景更新的過程中，採用了基於統計平均的更新演算法，相對于傳統的背景更新方法，提高了背景更新的速度; 3 .針對運動物體陰影檢測與去除中，基於高斯陰影模型的陰影檢測方法在某些情況下對陰影檢測不準確的問題，提出了一種基於體色向量匹配的陰影檢測與去除演算法。 -
Firstly, we directly use the motion vectors of macro - blocks defined in mpeg - i / ii compressing standards and filter the immobile macro - blocks. then, we build a skin color model in ycbcr color space using the convergent property of skin color, and we present the gaussian model skin recognition method and positive - negative look - up table method in details. and we analyze the texture of skin after wavelet transform and present a bayesian method based texture recognition method and a high texture filtering method
根據皮膚的運動性，首先直接利用mpeg -中的壓縮標準中有關宏塊運動預測的方法，提取宏塊的運動矢量，將沒有運動的宏塊過濾掉；然後，利用皮膚顏色的聚合性，在ycbcr顏色空間建立了皮膚的顏色模型，並分別闡述了基於高斯分佈模型的皮膚檢測法和正反概率表方法；最後，通過對皮膚進行小波變換后的紋理進行統計后，發現有效的利用皮膚紋理特徵，可以比較有效的過濾掉那些具有類似於皮膚顏色的背景，分別闡述了基於貝葉斯方法的紋理檢測方法和高紋理過濾法。 -
Shin color is one of most important human face characteristic, the gaussian model skin color segmentation under ycbcr chrominance space method is choose by the thesis
膚色是人臉重要特徵，在通過膚色采樣統計和聚類分析后，確立一種在ycbcr空間下的基於高斯模型的膚色分割方法。 -
The comparisons between the simulated results of two models and experiments show that double ellipsoidal model is better than gaussian model on three - dimensional analysis
兩種模型的模擬結果與工藝試驗結果比較表明，雙橢球形熱源模型比高斯熱源模型更適合雙絲焊的三維有限元分析。 -
The first step is construct the gaussian model for skin color under ycbcr and get the likely region of face, then skin color segmentation is carry out with the method of dynamic threshold optimizing
在ycbcr色彩空間中建立膚色分佈的高斯模型，得到膚色概率似然圖像，在最佳動態閾值選取演算法下完成膚色區域的分割。 -
Smoke texture character extraction based on mixture gaussian model
基於混合高斯模型定位的火災煙霧紋理特徵提取 -
The improved theory have succeeded in applying to gaussian model. in the third chapter, based on the single - spin transition dynamics, we discuss the time evolution of the local magnetization in the anisotropic three - dimensional xy model under the zero external field
第三章在單自旋躍遷臨界動力學的基礎上，討論零場下三維（ 3d ）各向異性晶格上xy模型的局域磁化強度的時間演化。 -
The particle filter can resolve a problem on nonlinear and non - gaussian model, and has been applied successfully in many fields
它可以處理模型方程為非線性、噪聲分佈為非高斯分佈的問題，在許多領域得到了成功的應用。 -
Face detection based on color image using mixture gaussian model and bayesian discrimination
一種採用混合高斯模型與貝葉斯判別的彩色圖像人臉檢測方法 -
The diffusion of radio - nuclides in atmosphere was studied on the basis of gaussian model
摘要在高斯煙羽模型的基礎上，對核事故中放射性雲團在大氣中的擴散規律進行了研究。 -
The experiments show that linear model or single gaussian model in his color space can get better results under complex background
通過實驗表明，在hsi彩色空間的簡單高斯模型和線性模型比較適合於復雜背景下的快速、準確的人臉檢測。 -
The gaussian model, which assumes that an incident pulse has a gaussian profile, has been widely used to investigate the optical pulse transmission in fibers
人們在對光脈沖在光纖中傳輸演變的理論研究過程中，常常假定入射光脈沖具有高斯型分佈。 -
In this thesis, firstly, we introduce generalized gaussian distributions to model the distributions of dct coefficients of an el frame. then, according to quantization theory, we analyze the distortion - rate function of the generalized gaussian model, with which we conclude that for the actual fgs coding, the derivative of actual distortion - rate function usually decreases continuously as the rate increases, and then begins to increase slowly at a comparatively high bit rate. finally, guided by the
然後分析了fgs編碼的量化模式，並把它應用到ggd分佈上，得到了ggd分佈率失真函數的變化規律，從而獲得實際fgs編碼的率失真函數的變化規律，即fgs編碼失真速率函數的導數先隨著碼率的增加而逐漸減小，然後在碼率比較高的時候開始隨碼率的增加而緩慢地增加。
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