1) fixed pattern noise
固定噪声
1.
For fixed pattern noise(FPN),the corresponding value is only around 3 e-.
通过采用放射源55Fe测定,芯片等效输入随机噪声为12个电子,而固定噪声为3个电子。
2) fixed-pattern noise
固定图案噪声
1.
For this reason,a novel nonuniformity correction algorithm based on steady-state Kalman filtering is developed,which can compute the gain matrix of the filter off line according to characteristics of fixed-pattern noise and correct images by using a frame-by-frame iteration.
为此,提出了一种基于稳态卡尔曼滤波的红外焦平面阵列非均匀校正算法,它可以根据固定图案噪声的特点离线计算出滤波器的增益矩阵,并且非均匀校正过程也采用了逐帧迭代方式,因此大大降低了计算复杂度和存储占用量。
2.
The performance of an infrared imaging system is affected by spatial fixed-pattern noise badly due to the different photoresponse of each detector in a focal plane array for the same irradiance.
文中使用了真实红外图像对算法性能进行验证,由于能够充分利用过去和将来的场景信息,因而本算法可以有效地去除原图像上的固定图案噪声。
3) column fixed pattern noise
列固定模式噪声
1.
With column switching and corrective factor estimation,a column fixed pattern noise(FPN) reduction structure for CMOS image sensor(CIS) is achieved.
采用列交换和校正因子估算的方法,实现了一种降低CMOS图像传感器列固定模式噪声的电路结构。
4) FPN
固定模式噪声
1.
Through the improved shared off FPA integration and CDS structure, the fixed pattern noise (FPN) and KTC reset noise are reduced greatly; all pixels in the selected row can start to integrate simulataneously; the readout process happens in the next row selection time, which can increase the frame frequency greatly; and the output waveform is boxcar, which is very easy to realize analog/digi.
通过片外的积分和相关双采样结构 ,不仅减小了电路的固定模式噪声和 KTC开关噪声 ;而且选中的一行中的所有像元能同时开始积分 ;信号的读出过程发生在下一行的选通期间 ,这有利于提高帧频 ;电路的输出信号是箱型波 ,则有利于模数转换。
2.
Besides,in order to reduce the fixed patten noise (FPN) induced by CTIA, CDS circuit with offset calibration technique was utilized.
该电路采用CTIA电路实现对微弱电流信号的高精度读出,并通过CDS电路抑制CTIA引入的固定模式噪声(FPN),最后采用失调校正技术减小CDS引入的失调,从而减小了噪声对电路的影响,提高了读出电路的精度。
5) fixed pattern noise
固定模式噪声
1.
An effective way to increase the SNR is to reduce the fixed pattern noise.
从读出电路的角度出发讨论了提高探测器信噪比的途径,降低以1/f噪声为主的固定模式噪声是提高探测器信噪比的有效手段。
2.
In the paper, a new method to reduce fixed pattern noise (FPN) of active pixel (APS) CMOS image sensor, which is named dynamic digital double sampling (DDDS) technique, has been developed and approved to be of simpler circuit architecture and better suppression outcome compared with conventional double sampling technique.
针对有源像素(APS)CMOS图像传感器中的固定模式噪声(FPN),设计了一种动态数字双采样的噪声抑制新技术;该技术比普通双采样技术具有更佳的抑制效果,其电路结构简单,适合于像素尺寸不断缩小的CMOS图像传感器发展趋势。
3.
A column readout circuit to reduce fixed pattern noise(FPN)for CMOS active pixel sensor imagers is presented.
针对CMOS有源像素传感器,提出一种降低固定模式噪声(FPN)的列读出电路。
6) Fixed pattern noise
固定花样噪声
补充资料：固定
①不变动或不移动的（跟‘流动’相对）：～职业丨～资产。②使固定：把学习制度～下来。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条