Author Affiliations
Abstract
1 Key Laboratory of Computational Optics Imaging Technology, Chinese Academy of Sciences, Beijing 100094, China
2 University of Chinese Academy of Sciences, Beijing 100049, Beijing
3 Brussel Photonics, Department of Applied Physics and Photonics, Vrije Universiteit Brussel, 1050 Ixelles, Belgium
4 King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
5 The University of British Columbia, Vancouver V6T 1Z4, Canada
The conventional optical system design employs combinations of different lenses to combat aberrations, which usually leads to considerable volume and weight. In this Letter, a tailored design scheme that exploits state-of-the-art digital aberration correction algorithms in addition to traditional optics design is investigated. In particular, the proposed method is applied to the design of refractive telescopes by shifting the burden of correcting chromatic aberrations to software. By enforcing cross-channel information transfer in a post-processing step, the uncorrected chromatic aberrations are well-mitigated. Accordingly, a telescope of F-8, 1400 mm focal length, and 0.14° field of view is designed with only two lens elements. The image quality of the designed telescope is evaluated by comparing it to the equivalent designs with multiple lenses in a traditional optical design manner, which validates the effectiveness of our design scheme.
220.4830 Systems design 220.1010 Aberrations (global) 200.4740 Optical processing 100.2980 Image enhancement 
Chinese Optics Letters
2019, 17(5): 052201
作者单位
摘要
浙江大学现代光学仪器国家重点实验室, 浙江 杭州 310027
三维显示以其直观自然的表现方式获得了广泛关注,三维交互技术也随之迅猛发展。提出了一种基于红外结构光、单摄像头的实时交互系统。红外结构光投影对空间进行编码,摄像头实时采集用户手部红外图像,经由OpenCV实现的图像处理算法比较两帧图像,获得结构光在手部移动的信息,从而实现对包括深度方向在内的三个维度的平移、缩放和旋转动作等用户交互动作的解析,并导入三维显示设备,对三维显示的虚拟物体进行实时控制。利用商用CMOS摄像头和红外LED搭建了交互样机。实验结果证明,该方案能以较低成本实现实时徒手三维交互。
测量 信息显示 三维交互 红外结构光 单摄像头 实时交互 
光学学报
2013, 33(4): 0412005
作者单位
摘要
浙江大学 现代光学仪器国家重点实验室,杭州 310027
提出了一种新的基于视场拼接的全视差三维显示方法及图像生成方案.系统核心部分由一个微投影机阵列、一个反射光路和一个散射屏组构成,图像生成方案采用基于OpenGL的算法实现.为了验证所提出的基于视场拼接理论的正确性,利用液晶显示器、菲涅耳镜组、定向散射屏和背投式反射光路搭建了实验样机.该装置可以在更紧凑的系统结构下显示包括横向视差和纵向视差在内的三维图像,并且通过图像生成算法的配合实现了动态三维显示效果.
信息光学 三维显示 全视差 拼接算法 集成化 Information optics Three dimensional display Full-parallax Splice algorithm Compact 
光子学报
2011, 40(9): 1405
Author Affiliations
Abstract
State Key Lab of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China
A full-parallax three-dimensional (3D) display using a new directional diffuser is demonstrated. The display could present 3D images with 45 views comprising 9 horizontal views by 5 vertical views. The resolution and size of the 3D images displayed are 226£226 pixels and 300£300 (mm). The new directional diffuser consisting of two perpendicular lenticular sheets can be widely used in the display domain owing to its low cost and simple process.
三维显示 全视差 定向散射屏 120.2040 Displays 110.4190 Multiple imaging 230.1980 Diffusers 
Chinese Optics Letters
2011, 9(8): 081202
作者单位
摘要
浙江大学 现代光学仪器国家重点实验室, 浙江 杭州 310027
提出了一种基于视场拼接的体视三维显示方法及系统, 该系统由一个微投影机阵列和一个纵向散射屏构成。为了验证所提出的新型三维显示方法, 利用58.4 cm(23 in)的LCD和49个焦距为100 mm的菲涅耳透镜作为微投影机阵列开发出了一台实验样机, 该装置可以显示具有49个横向视点的3D图像, 且相邻视点的角间距为0.51°, 通过对图像生成和重组算法的优化, 使得显示效果得到了极大改善。
3D显示 自体视显示 拼接视场 视点 3D display autostereoscopic display spliced view-field viewpoint 
液晶与显示
2010, 25(4): 601

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