Wachel, "A Simple Model for On-Sensor Phase-Detection Autofocusing Algorithm," J. Comput. Commun. 1, 11-17 (2013).P. Sliwinski and P. Wachel. A simple model for on-sensor phase-detection autofocus- ing algorithm. Journal of Computer and Communications, 1(6):11-17, November 2013....
是目前AF的主流技术,相对于传统的Contrast AF(反差对焦),PDAF具有对焦速度快,拉伸幅度小的优点,下面来讲讲PDAF的工作原理和计算方法。 先来聊个有意思的话题,PDAF(Phase Detection Autofocus)相位检测对焦,为什么叫做相位检测? 看一个我们非常熟悉的函数,正弦函数和余弦函数, y = sin(x) y = cos(x) = sin(x...
Wachel, "A Simple Model for On-Sensor Phase-Detection Autofocusing Algorithm," J. Comput. Commun. 1, 11-17 (2013).P. Sliwinski and P. Wachel. A simple model for on-sensor phase-detection autofocus- ing algorithm. Journal of Computer and Communications, 1(6):11-17, November 2013....
Keywords: Fourier ptychography and single-photon detection etc. Bahram Javidi (University of Connecticut) Keywords: holography etc. Rongguang Liang (The University of Arizona) Keywords: phase imaging, phase unwrapping and biomedical imaging etc. Christopher Metzler (The University of Maryland) Keywords: ...
In in-line holography, where the object beam and the reference beam are along the same optical axis, four-step phase-shifting algorithm is commonly used for phase recovery (Fig.3)25. At first, the complex field of the object wave at the sensor plane is calculated from the four phase-shif...
For time lapse experiments, images were taken at 1’ intervals with autofocus on over a maximum time of 10’. Cell image analysis was performed using microbeJ (Ducret et al., 2016). For automated foci detection we used the maxima foci function of microbeJ we manually adjusted the tolerance...
If the field of view is uneven, no data will be lost through focussing issues as the algorithm can also be used to bring other areas of interest into focus with no need to change the Z-position and re-image. Therefore with all cells now available to analyse, along with autofocus, ...
4) PGA algorithm 相位梯度自聚焦算法 1. Application of an improvedPGA algorithmin SAR motion compensation; 相位梯度自聚焦算法在机载合成孔径雷达运动补偿中的应用 更多例句>> 5) gradient phase detection 梯度相位法 1. It combines Canny algorithm withgradient phase detection. ...
传统Hough变换存在计算量大等缺陷,本文利用直线边缘的梯度相位信息把Hough变换中θ的取值限定在一个较小的范围内,同时减少用于计算的像素点数,大大降低了计算量。 2) phase gradient 相位梯度 1. Classicphase gradientautofocus(PGA) algorithm can be only applied to narrow band spotlight synthetic aperture imaging...
And then,the strip phase gradient autofocus(PGA) algorithm is ameliorated. 首先建立了适合机载UWB SAR成像几何的相位误差模型,并分析了其特点;然后针对模型特点,对条带式相位梯度自聚焦算法作出改进,同时提出一种基于空不变因子估计的加权相位梯度自聚焦算法。 3. A new phase gradient autofocus(PGA) algorithm...