数字成像系统【117410】CMOS image sensor基础

Click to edit Master title style,Edit Master text styles,Second level,Third level,Fourth level,Fifth level,23/10/2017,#,数字成像系统,讲师的,CSDN,博客地址,Maver Jiang,imaging algorithm specialist,staff image quality engineer,maver.jiang,Cmos camera module stack,物镜,IR,Mircolens,ColorFilter,Sensor Array,电路,sensor floorplan,Active Pixels/Driver,Optical Black,Dummy border,READOUT,Control/Processing/memory,PCB,Power management,vd,I_ph,光子（,Photon,）与量子效率,quantum efficiency,4.41E-19,焦耳,E=hc,/,Total_Power = sum_of (all photons),QE = 1/3 in this case,Color filter,e,与量子效率,QE,有关的几个重要概念,QE,是衡量某个颜色通道某个频率,/,波长的光子转换成电子的效率,IR cutter-cut near IR,Crosstalk,Sensitivity,感光度,=QE X Pixel_Size,QE,波长,感光过程,充电,-reset,感光,放电,P,N,P,N,V,vd,P,N,Q,=,Ne x e x QE,Q = V x C,V =,Q/C,e,V,读取过程,E-V,Analog Gain,ADC,Full Well,Reset,时间轴,曝光,读取,Total_time = reset_time+exposure_time+readout_time,PCB,Sensor,动态范围,e e,e e,e e,e e,1,：,Full well Capacity,2,：,Dark Current,3,：,Fill Factor,Dynamic Range = Saturation/ black level,Sensor,时序,Reset,V_PhotoDiode,Noise in Sensor,时域噪声与空域噪声,时域噪声,-,KTC Noise(readout),PhotonShotNoise,DarkCurrentNoise,PowerNoise,空域噪声,空域噪声,-DefectPixel,Row/ColumnNoise,PRNU,DSNU,Crosstalk,对,noise,的影响,R,=a11R + a12xG+a13xB,负的系数越大,SNR,越低, + (a12xG)2+(a13xB)2,加模型的噪声计算：,ADD,（,N1,N2),=(N12+N22) 0.5,THANKS,CSDN,网站：,企业服务：, Jiang,提供,数字成像系统暨,Image signal processor,原理培训,大话成像公众号,知乎专栏,内容目录,数字成像系统介绍,CMOS image sensor,基础,光学基础,颜色科学基础,ISP,信号处理基础,3A,概述,黑电平与线性化,Green Imbalance,坏点消除,Vignetting,与,Color shading,SNR,与,Raw Denoise,Dynamic Range,与,Tone Mapping,MTF,与,Demosaic,色彩空间与色彩重建,Color Correction Matrix,与,3D LUT,Gamma,与对比度增强,Sharpening,18.,Color Space Conversion,19.,空域去噪,20.,时域去噪,21.,Color Aberrance Correction and Depurple,22.,ISP,的统计信息,23.,自动曝光,24.,自动白平衡,25.,自动对焦,26.,闪光灯,27.,HDR,28.,Exif,和,DNG,29.,Encoder,30.,图像防抖,31.,图像质量评价工具与方法,32.,画质调优,