... background ratio 背景比 target background ratio 靶本底比值 background contrast ratio 背景反差比 ...
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In the new energy model, the homogeneity of a target and its area ratio to background was pay attention to.
针对这一问题给出了改进的拟合能量模型，新模型兼顾到了目标的同质性信息与其所占面积比例的关系。
The targets SNR(Signal Noise Ratio)and contrast are very low when the target is in the sea background in which there are sea waves and the reflexing light from the stretch welter.
海面背景下海面及连绵起伏的波浪反光使图像的信噪比和对比度都较低，而且舰船目标像素较少。
The invention relates to a target source with adjustable contrast ratio. The target of the target source is arranged between target integrating sphere and background integrating sphere;
本发明涉及一种可调对比度目标源，该目标源的目标在目标积分球与背景积分球之间；
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