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   背景光补偿 的翻译结果: 查询用时:0.239秒
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背景光补偿
相关语句
  background light compensation
     Background Light Compensation of PSD on Sub-block Integration Neural Network Method
     基于子块集成神经网络法的PSD背景光补偿
短句来源
     A novel method which employs proportional-integral-derivative(PID) control the drivingpower of laser to realize background light compensation is presented,and the PID hardware circuit is designed as well. The experiments and application of PSD show that this method can eliminate the disturbance of the background light and the practicability of PSD is also increased.
     提出采用比例积分微分(PID)控制激光二极管的驱动电源来消除PSD背景光补偿方法,并设计了硬件补偿电路,实验结果和实际应用均表明:该方法能有效地消除背景光的干扰,可大大增加PSD的实用性。
短句来源
  相似匹配句对
     Background Light Compensation of PSD on Sub-block Integration Neural Network Method
     基于子块集成神经网络法的PSD背景补偿
短句来源
     BACKGROUND:
     背景
短句来源
     Background:Congestive heart failure (CHF) is a highly lethal condition.
     背景
短句来源
     Compensation
     补偿
短句来源
     An Investigation on Background Moving Compensation
     背景移动补偿技术的研究
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Two kinds of computer image processing methods were used for the analysis of uneven background brightness distributing of ferrography images.For the first method, the uneven background brightness distributing was compensated by collecting background brightness of ferrography image.This method has little loss of marginal information.For the second method,the uneven distributing of ferrography images was treated through the first and the second orders operation to eliminate the change of background gradient when...

Two kinds of computer image processing methods were used for the analysis of uneven background brightness distributing of ferrography images.For the first method, the uneven background brightness distributing was compensated by collecting background brightness of ferrography image.This method has little loss of marginal information.For the second method,the uneven distributing of ferrography images was treated through the first and the second orders operation to eliminate the change of background gradient when the background brightness of ferrography images could not been gotten.This method can get the good background of ferrography images and segment wear particle from background.The image processing test shows that the first and the second orders operation can segment image and eliminate the uneven distribute of images background,but compensated method by collecting background brightness is better than orders first and second order operation methods.

针对磨粒图片背景亮度呈现分布不均的问题,采用两种计算机图象处理方式进行了预处理,得到比较完整的二值图。第一种方式是:在没有铁磨粒情况下采集背景亮度变化,通过数字处理得到背景亮度变化的差值,然后将亮度补偿到铁谱图上。试验结果表明,该方法在边缘信息损失很小的情况下,得到磨粒二值图。第二种是:在不能得到背景光的条件下,通过一阶和二阶差分处理及其变形方法,来消除背景梯度变化,从而消除背景光的低频噪声。从试验效果来看,一阶和二阶差分不仅能进行边缘检测,而且能通过卷积运算消除背景光分布不均,磨粒边缘有点扩大,有些少量信息损失掉了,这种损失可以用图象形态学中的腐蚀的方法消除。两种方法相比,采用背景补偿的方法效果更好一些,在条件许可的情况下尽量采用背景光补偿方法。

The position sensitive detector(PSD) can be used for many types of precision and contactless dgmatic distance detection.The most important problem to use the PSD is how to overcome the disturbance influence of background light acting on the PSD.Based on the PSD principle,it is found that the output signal of PSD is nonlinear when there exist background light.A novel method which employs proportional-integral-derivative(PID) control the drivingpower of laser to realize background light compensation is presented,and...

The position sensitive detector(PSD) can be used for many types of precision and contactless dgmatic distance detection.The most important problem to use the PSD is how to overcome the disturbance influence of background light acting on the PSD.Based on the PSD principle,it is found that the output signal of PSD is nonlinear when there exist background light.A novel method which employs proportional-integral-derivative(PID) control the drivingpower of laser to realize background light compensation is presented,and the PID hardware circuit is designed as well.The experiments and application of PSD show that this method can eliminate the disturbance of the background light and the practicability of PSD is also increased.

光电位置敏感探测器(PSD)已应用到非接触式高精度动态位移测量中。但在实际应用中经常受到背景光的干扰,直接影响到测量系统的精度和可靠性。根据PSD的工作原理,分析了杂光下的输出信号与杂光的非线性关系。提出采用比例积分微分(PID)控制激光二极管的驱动电源来消除PSD背景光补偿方法,并设计了硬件补偿电路,实验结果和实际应用均表明:该方法能有效地消除背景光的干扰,可大大增加PSD的实用性。

 
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