- 标题
- 摘要
- 关键词
- 实验方案
- 产品
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Over compensation algorithm for laser beam shaping using a deformable freeform mirror
摘要： We propose an over compensation (OC) algorithm for laser beam shaping using deformable mirrors. In this algorithm, we model the beam shaping problem using a sequence of standard Monge-Ampère (MA) equations and iteratively applies over compensation to the deviated focal-plane irradiance distributions. Simulations show that this algorithm can get its minimum relative root mean square deviations (RRMSDs) using only a few iterations and actuator perturbations.
关键词： Freeform optics,Active or adaptive optics,Laser beam shaping
更新于2025-09-19 17:13:59
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Automated Optical Flow Based Registration For Adaptive Optics Scanning Laser Ophthalmoscope
摘要： This study presents an automated registration method based on optical flow for an adaptive optics scanning laser ophthalmoscope. The method was designed to align and average images to obtain a higher signal-to-noise ratio image. A correlation based optical flow image registration method, which has large registration degrees of freedom, is adopted as a local registration method. By comparing the images before and after image registration, we show the effectiveness of our method. Furthermore, the advantage of our method, which is the containment of large registration degrees of freedom, is confirmed.
关键词： Retinal images,Image processing,Imaging systems,Optical flow,Active or adaptive optics,Ophthalmology
更新于2025-09-16 10:30:52