background subtract 中文意思是什麼
background subtract
解釋
扣本底- background : n 1 後景，背景；基本情況；（紡織品等的）底子；出身；經歷。2 隱蔽的[不引人注目的]地位；幕後。3 襯...
- subtract : vt vi 減去，扣除 （from）。 That subtracts nothing from his merit 那絲毫沒有減損他的功績。 or 〈...
-
The nonlinear filtering for nbi estimate - subtract assumes that the prediction error is dominated by spread spectrum signal and the background noise power is far below spread spectrum chip power, this assumption promises the low error ratio of chip decision but may not be attainable to digitalized dsss receiver in military communication environment, and does not coincide with the principle of dsss communication that decreases bit error ratio ( ber ) depending on spread spectrum gain, not on chip power
在干擾估計抵消濾波中，以往的非線性濾波要求干擾抵消濾波后擴頻信號功率遠大於殘余噪聲功率，進而假設碼片判決的誤碼片率基本為零，這一要求對軍用擴頻通信是不利的，而且也不符合擴頻通信利用擴頻增益降低誤碼率的原則。 -
We first reconstruct, the background of scene from sequential input image, then subtract the background reconstructed from real - time input image
本文首先根據輸入的實時圖像序列，進行自適應學習以重建出背景，在此基礎上將輸入的道路實時圖像和背景圖像進行差分運算。 -
To subtract the rolled - strips surface defect with drawing auto - adapted form non - parameter gauss background model, we obtain the flaw target array for the first time. the utilization ranked - order mathematics morphological filters suppress the spot, and successfully withdraw the flaw from the target image
本文首次把自適應非參數高斯背景模型及演算法應用於帶鋼表面的缺陷提取，通過數學形態學中的百分態濾波法，最後成功地從目標圖中提取出缺陷。 -
Two wedge interferometers are designed that the thickness of one is higher than the other. so when the incident coherent light through the interferometers can acquire two fringe patterns which having space shift, but the incident incoherent light only result in consistent intensity signal. through a differentiating amplifier, two signals subtract which can eliminate noise of background and result in higher contrast ratio fringe signals. this method largely improves the system and the ability of detection. the spacing of line fringes is a function of incident laser wavelength, by analyzing, we can extract the wavelength of incident laser. the optical unit analyzing and results also simulated with matlab
當背景光入射時，直接穿過干涉儀，僅發生強度的衰減，在兩個探測平面上產生幅度基本一致的灰度信號，通過差分放大器，相消為零，從而抑制了背景干擾。當激光信號入射，穿過干涉儀時受到調制，在探測平面上產生干涉條紋。通過所設計的存在平均厚度差的雙楔形干涉儀，兩路干涉條紋圖案出現相對移位：在兩個探測平面對應的位置上，一路出現亮紋，另一路出現暗紋。
分享友人