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浏览/检索结果: 共13条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 An aberration-eliminating processing technology for optical window working under differential pressure condition 会议论文  OAI收割 Chengdu, PEOPLES R CHINAChengdu, PEOPLES R CHINA, JUN 26-29, 2018JUN 26-29, 2018 作者:  Zhai Jia;  Ren Xiaoli;  Yang Jiao;  Feng Dingyu;  Zhao Wenchuan   |  收藏  |  浏览/下载：72/0  |  提交时间：2019/08/23 optical window  differential pressure  optical processing  transmission wavefront aberration   The research about high-dynamic and low-gray target image differential capture technology based on laser active detection 期刊论文  OAI收割 Eurasip Journal on Image and Video Processing, 2018, 卷号: 0, 页码: 15 作者:  Chen, Z. B.;  Chen, N.;  Shi, K.;  Li, G. N.;  Liu, X. Y.   |  收藏  |  浏览/下载：11/0  |  提交时间：2019/09/17 Image processing  Differential capture  Target detection  Image  grayscale  Cat eye echo  Active detection  Engineering  Imaging Science & Photographic Technology   行为猴视觉系统对大范围特征和局部特征的并行分化处理 会议论文  OAI收割 2016年第一届北京视觉科学会议, 北京, 2016-07 作者:  Jun Huang;  Yan Yang;  Ke Zhou;  Xudong Zhao;  Quan Zhou 收藏  |  浏览/下载：26/0  |  提交时间：2017/01/06 global features  local features  differential processing  rhesus monkeys  oddball visual search task  saccade latency   A demonstration test of the dual-beam polarimetry differential imaging system for the high-contrast observation 会议论文  OAI收割 Amsterdam, Netherlands, 2012-7-1 作者:  Jiangpei Dou;  Yongtian Zhu;  Xi Zhang;  Rong Li;  Deqing Ren 收藏  |  浏览/下载：39/0  |  提交时间：2014/01/08 Exoplanets  polarimetry differential imaging  high-contrast imaging  image processing  optimization   The application of digital signal processing (DSP) for the real time solving of artillery fire control exterior trajectory (EI CONFERENCE) 会议论文  OAI收割 2012 IEEE 3rd International Conference on Software Engineering and Service Science, ICSESS 2012, June 22, 2012 - June 24, 2012, Beijing, China 作者:  Li D. 收藏  |  浏览/下载：141/0  |  提交时间：2013/03/25 Method of gain firing data by calculate the group of differential equation has the advantages of high repeatability and high accuracy  But much of the CPU time is occupied by the task of re-iteration in computational processing. Therefore  it is not the real time processing. This paper introduces a method to quickly determine angle of firing by iteration method  which realizes Runge-Kutta method for the equations of exterior ballistic according to the model of mass center motion of projectile. Moreover  it also provides the flow of real-time integral solution and be proved by the simulation of MATLAB. Its accuracy satisfies the requirements. This work can be as reference for the design of opt-electrical fire control system and the demonstration work. 2012 IEEE.   A high-speed CMOS image sensor for real-time vision chip 期刊论文  OAI收割 guangxue xuebao/acta optica sinica, Guangxue Xuebao/Acta Optica Sinica, 2011, 2011, 卷号: 31, 31, 期号: 8, 页码: 828001, 828001 作者:  Fu, Qiuyu;  Lin, Qingyu;  Zhang, Wancheng;  Wu, Nanjian;  Fu, Q.(qiuyufu@semi.ac.cn)   |  收藏  |  浏览/下载：59/0  |  提交时间：2012/06/14 Analog to digital conversion  CMOS integrated circuits  Differential amplifiers  Digital cameras  Image sensors  Optical data processing  Photodiodes  Pixels  Programmed control systems  Sensors  Signal processing  Analog To Digital Conversion  Cmos Integrated Circuits  Differential Amplifiers  Digital Cameras  Image Sensors  Optical Data Processing  Photodiodes  Pixels  Programmed Control Systems  Sensors  Signal Processing   A nonlinear image enhancement algorithm based on partial differential equations (EI CONFERENCE) 会议论文  OAI收割 2010 IEEE 10th International Conference on Signal Processing, ICSP2010, October 24, 2010 - October 28, 2010, Beijing, China Han X.; Jian Z. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 Image enhancement and image de-noising have being the important research contents of image academic and engineering field  and the partial differential equations have been widely applied to computer vision. The paper applies the thoughts of partial differential equations  puts forward a new improved method of image enhancement. This method can enhance not only the dark images but also the bright images  making the details hidden in the dark background and the bright background very clear. The application scope is wider  and the visual effect is better. This paper uses the finite difference method to discrete the partial differential equations  and combines with the heat equation. It calculates simple  runs fast  and provides a guarantee for real-time video image enhancement processing. 2010 IEEE.   A study on the effect factors of sol-gel synthesis of yttrium aluminum garnet nanopowders 期刊论文  OAI收割 Journal of Applied Physics, 2010, 卷号: 107, 期号: 6 L. Yang; T. C. Lu; H. Xu; W. Zhang; B. Y. Ma 收藏  |  浏览/下载：15/0  |  提交时间：2012/04/13 aluminium compounds  calcination  differential scanning calorimetry  Fourier transform spectra  infrared spectra  nanofabrication  nanoparticles  particle size  sol-gel processing  solvent effects  thermal conductivity  transmission electron microscopy  X-ray  diffraction  yttrium compounds  yag-tb phosphor  luminescence properties  combustion process  ce  phosphor  ceramics  laser  photoluminescence  microstructure  nanoparticles  performance   A high-speed acquisition and processing system of the laser speckle signal on the magnetic fluid (EI CONFERENCE) 会议论文  OAI收割 International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, June 17, 2009 - June 19, 2009, Beijing, China 作者:  Sun Y.;  Sun Y.;  Wan Q.-H. 收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25 In order to achieve the dynamical detection and real-time analysis of the movement status of the magnetic fluid  according to the difficulties of the detection of the magnetic fluid  established a high-speed acquisition and processing system of laser speckle signal on the magnetic fluid. First of all  the FPGA (EP2C8T144C8N) drived the linear array CCD(TCD1501D) to scan in the corresponding time sequence given by the computer  collected the laser speckle interferometric image in rapid change on the surface of the magnetic fluid  which followed the movement of the magnetic fluid  and the signal collected by CCD was converted into the digital data through the high-speed A/D convertor and stored into the internal buffer FIFO of the FPGA  whose width and depth were designed by the user as required. Then  the FPGA sent the digital signal of the laser speckle interferometric images into the computer through the USB2.0 highspeed differential bus  whose transmission rate can reach 480Mb/s in theory. Finally  the distribution of the laser speckle on the magnetic fluid was messy and random  which carried certain information about the surface of the magnetic fluid  based on the theories of the statistic correlation and the subdivision of images  analysing and processing the laser speckle interferometric images  indirectly got the movement status of the magnetic fluid under the electromagnetic field. The experimental results show that: the High Speed Acquisition and Processing System has the advantage of full-court  non-contact  non-invasive  high-precision and high reliability and so on. The detection resolution of high speed acquisition and processing system is superior to 1m and the sample rate is 3Msps  which basically meets the requirements of the magnetic fluid movement state detection. 2009 SPIE.   点云模型的特征计算及其在真实树木重建中的应用 学位论文  OAI收割 工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2008 作者:  程章林 收藏  |  浏览/下载：52/0  |  提交时间：2015/09/02 点云模型  数字几何处理  微分几何量估计  圆柱拟合  真实树木重建  point cloud  digital geometry processing  estimating differential geometry properties  cylinder fitting  reconstruction of real trees