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1)  image contrast
图像对比度
1.
The weak but useful signal limits the OCT imaging speed,detection sensitivity,signal-to-noise ratio and image contrast.
仿真结果:表明对OCT成像有贡献的背向散射光强是样品臂入射光强的10-8~10-10,这样微弱的有用信号限制OCT系统的成像速度、探测灵敏度、信噪比和图像对比度等系统的性能。
2.
Irradiances reflected from object and backscattered from intervening water are calculated respectively,and the relationship between image contrast and imaging distance is analyzed based on previous computation expressions.
对条纹激光扫描成像系统中的像面照度特性进行了理论和实验研究,推导出了目标反射光照度和后向散射光照度的