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shu zi she xian jian ce tu xiang zhi liang
Author(s): 
Pages: 14-17
Year: Issue:  1
Journal: Nondestructive Inspection

Keyword:  检测图像对比度空间分辨力信噪比;
Abstract: 数字射线检测技术图像质量因素可概括为对比度、空间分辨力和信噪比。对比度决定了检测图像在射线透照方向的分辨力,空间分辨力决定了检测图像的细节分辨力,信噪比决定了检测图像的细节识别能力。获得的检测图像质量与采用的探测器(系统)性能、采用的射线检测技术参数相关,直接影响对缺陷检验能力。
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