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....
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...
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. ...
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: ...
then an autofocus operation is appropriate, and there is no need to perform scene change detection to determine whether to perform autofocus. Control passes directly to block406to return to active mode and resume PD computation. Thus, the PD engine129bypasses the more computationally intensive operat...
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...
By comparing Figure 8c,f, it can be found that their differences are small, which also means that the cross-terms in the multi-component CPS will not be effectively accumulated by the proposed algorithm, and the interference to signal accumulation and peak detection is relatively small. 4.3. ...