Photoelectronic Detection and Imaging最新文献

Research on inside surface of hollow reactor based on photoelectric detecting technique 基于光电探测技术的空心电抗器内表面研究

Photoelectronic Detection and Imaging Pub Date : 2011-08-18 DOI: 10.1117/12.900296

Guicai Song, Y. Na, Wen-zong Shi, Q. Zhang

引用次数: 0

3D information extraction based on a novel x ray imaging system 基于新型x射线成像系统的三维信息提取

Photoelectronic Detection and Imaging Pub Date : 2011-08-18 DOI: 10.1117/12.900743

Chunyu Yu, Lingli Kong, Junju Zhang, Shengdong Zhang

引用次数: 0

Design and characterization of radiation tolerant CMOS image sensor for space applications 用于空间应用的耐辐射CMOS图像传感器的设计和特性

Photoelectronic Detection and Imaging Pub Date : 2011-08-18 DOI: 10.1117/12.900781

Xinyang Wang, J. Bogaerts, W. Ogiers, G. Beeckman, G. Meynants

引用次数: 7

Pipeline structure for real-time centroid calculation of Hartmann wavefront sensor with horizontal multi-channel pixel output 具有水平多通道像素输出的哈特曼波前传感器实时质心计算管道结构

Photoelectronic Detection and Imaging Pub Date : 2011-08-18 DOI: 10.1117/12.899034

Shaobai Wang, Chunhong Wang, C. Rao

引用次数: 0

High dynamic range color imaging with a camera based on piecewise color characterization 基于分段色彩表征的相机高动态范围彩色成像

Photoelectronic Detection and Imaging Pub Date : 2011-08-18 DOI: 10.1117/12.899462

Boneng Tan, N. Liao, Yusheng Lian, Li-xun Tian, Wenmin Wu

引用次数: 0

Fluid flow and heat transfer in Joule-Thomson coolers coupled with infrared detectors 与红外探测器耦合的焦耳-汤姆逊冷却器中的流体流动和传热

Photoelectronic Detection and Imaging Pub Date : 2011-08-18 DOI: 10.1117/12.902689

B. Du, Weimin Jia

{"title":"Fluid flow and heat transfer in Joule-Thomson coolers coupled with infrared detectors","authors":"B. Du, Weimin Jia","doi":"10.1117/12.902689","DOIUrl":"https://doi.org/10.1117/12.902689","url":null,"abstract":"Joule-Thomson coolers have been widely used in infrared detectors with respect to compact, light and low cost. For self-regulating Joule-Thomson cooler, its performance is required to be improved with the development of higher mass and larger diameter of focal plane infrared detectors. Self-regulating Joule-Thomson coolers use a limited supply of high pressure gas to support the cooling of infrared detectors. In order to develop Joule-Thomson coolers with a given volume of stored gas, it is important to study on fluid flow and heat transfer of Joule-Thomson coolers coupled with infrared detectors, especially the starting time of Joule-Thomson coolers. A serial of experiments of Joule-Thomson coolers coupled with 128×128 focal plane infrared detectors have been carried out. The exchanger of coolers are made of a d=0.5mm capillary finned with a copper wire. The coolers are self-regulated by bellows and the diameters are about 8mm. Nitrogen is used as working gas. The effect of pressure of working gas has been studied. The relation between starting time and pressure of working gas is proved to fit exponential decay. Error analysis has also been carried. It is crucial to study the performance of Joule-Thomson coolers coupled with infrared detectors. Deeper research on Joule-Thomson coolers will be carried on to improve the Joule-Thomson coolers for infrared detectors.","PeriodicalId":355017,"journal":{"name":"Photoelectronic Detection and Imaging","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123022867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Research on surface free energy of electrowetting liquid zoom lens 电润湿液体变焦透镜表面自由能的研究

Photoelectronic Detection and Imaging Pub Date : 2011-08-18 DOI: 10.1117/12.900142

Cunhua Zhao, Gaoqi Lu, Daling Wei, Xinhua Hong, Dongqing Cui, Changliu Gao

引用次数: 1

3D hand and palmprint acquisition using full-field composite color fringe projection 三维手印和掌纹采集使用全场复合彩色条纹投影

Photoelectronic Detection and Imaging Pub Date : 2011-08-18 DOI: 10.1117/12.900538

Hui Feng, Zhaohui Wang, D. Kuang, Zonghua Zhang, Sixiang Zhang

{"title":"3D hand and palmprint acquisition using full-field composite color fringe projection","authors":"Hui Feng, Zhaohui Wang, D. Kuang, Zonghua Zhang, Sixiang Zhang","doi":"10.1117/12.900538","DOIUrl":"https://doi.org/10.1117/12.900538","url":null,"abstract":"This paper presents a method to simultaneously get 3D hand and palmprint information by projecting composite color fringe patterns. The existing researches mainly focus on 2D biological features, and the extracted features from 2D image are distorted by pressure or lose the third dimensional information. But 3D features with non-contact operation can obtain the characteristic distribution patterns without distortion, and simultaneously obtain real hand morphology and the global properties of hand and palmprint. A prototype 3D imaging system is designed to capture and process the composite color fringe patterns on the hand surface. The hardware configuration comprises a DLP (digital light processing) projector, a color CCD camera with fireware port and a personal computer (PC). In order to fast acquire 3D accurate shape data, sinusoidal and binary fringe patterns are coded into red, green and blue channels to generate composite color fringe pattern images. The DLP projector projects composite RGB fringe patterns onto the surface of human hands. From another viewpoint, the CCD camera captures the images and saves them into the computer for postprocessing. Wrapped phase information can be calculated from the sinusoidal fringe patterns with high precision. While the absolute fringe order of each sinusoidal fringe pattern is determined by the binary fringe pattern sequences. The absolute phase map of each pixel can be calculated by combining the obtained wrapped phase and the absolute fringe order. Some experimental results on human hands show that the proposed method correctly obtains the absolute phase (shape) data of hand and palmprint.","PeriodicalId":355017,"journal":{"name":"Photoelectronic Detection and Imaging","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115097230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A high-speed CMOS image sensor with column-parallel single capacitor CDSs and single-slope ADCs 一种高速CMOS图像传感器，具有列并联单电容cds和单斜率adc

Photoelectronic Detection and Imaging Pub Date : 2011-08-18 DOI: 10.1117/12.901005

Quanliang Li, Cong Shi, N. Wu

引用次数: 0

Weak-light automatic readout collection and display on the resonant-cavity-enhanced quantum dot photoelectric sensor 谐振腔增强量子点光电传感器微光自动读数采集与显示

Photoelectronic Detection and Imaging Pub Date : 2011-08-18 DOI: 10.1117/12.900956

F. M. Guo, H. You, W. Gu, D. Han, Z. Zhu

引用次数: 1