threshold-crossing 中文意思是什麼
threshold-crossing
解釋
越限-
In this article, double threshold, iteration is applied to improve segmentation algorithm based on signal energy, and short - time zero - crossing rate is proposed for the first time to determine the exact boundaries between different components of heart sound
本文通過使用雙門限、迭代等方法，改進了基於信號能量的分段演算法，並首次引入短時過零率以更準確地定位分段邊界。 -
The initial vsd process uses two main characters, the average instantaneous energy and the average instantaneous zero crossing rate ( zcr ). to make the first recognition for the start and the end, the emphasis of which is to select the appropriate value of the threshold and the length of frame. in the final vsd process, the author compares several characters and confirms the new recognition character
初步分段過程使用了能量和過零率這兩個主要特徵進行端點檢測，重點是合理選擇兩個重要參數? ?門限和統計幀長度的取值；在最終分段過程中，筆者首先通過比較幾種特徵的識別效果，選擇卡爾曼濾波參數作為再次分段的識別特徵，還提出了一種新的識別特徵? ?周期性緩變特徵，使用這兩個特徵分別在子語音段內進行端點檢測。 -
With the reader ' s permission we will attempt to evoke in thought the impression he would have experienced in crossing with us the threshold of that great hall amid that throng in surcoat, doublet, and kirtle
若承蒙看官同意，我們不妨就竭力開動腦筋，想象看官跟我們一道，夾雜在穿著短上衣、半截衫、短襖的嘈雜人群中間，跨進大廳時會有什麼樣的感覺。 -
Crossing the threshold, i was taken aback by the mess in the house
一踏進門檻，屋子裡的混亂景象使我吃了一驚。 -
The images to be processed is obtained in condition of nonuniform illumination. a threshold surface by interpolating zero - crossing points is used to segment image to avoid influence of nonuniform illumination. then the destination region can be detected using the method of pattern recognition and the method advoid the influence of nonuniform illumination effectively. the contour description is obtained by fitting at least squares principle
論文在分析當前圖象分割的現狀和趨勢的基礎上，採用基於log運算元的動態閾值選取對圖象進行分割，以克服非均勻光場給圖象分割帶來的影響，然後通過對區域特徵的提取和分類準則的確定，準確識別出目標區域。 -
Researchers identify this rush of freshwater as the first phase of a critical threshold crossing because they know freshening the north atlantic can slow or shut off the conveyor, shifting climate as a result
研究人員明白，北大西洋的淡化會導致輸送作用減緩甚至停頓，從而改變氣候，因此他們認為，淡水突然湧入是跨越關鍵性門檻的初期階段。 -
Conversely, critics contend that the doctrine and the fledgling offensive counterspace mission represent the intellectual underpinning of a major shift in us thinking that, whether intentionally or not, could lead to the global community crossing the threshold of combat in space
反過來說，評論家趨向于認為該條令及其催生的進攻性太空反擊任務代表了美國思想領域理性思維的一個主要轉變，無論是否故意這樣，它都會導致國際社會越過太空戰的雷池。
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