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Chinese Academy of Sciences Institutional Repositories Grid
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Modelling the stability of a soil-rock-mixture slope based on the digital image technology and strength reduction numerical manifold method 期刊论文  OAI收割
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS, 2021, 卷号: 126, 页码: 45-54
作者:  
Yang, Yongtao;  Chen, Tao;  Wu, Wenan;  Zheng, Hong
  |  收藏  |  浏览/下载:51/0  |  提交时间:2021/05/25
用于数字等温扩增系统的荧光图像分析技术 期刊论文  OAI收割
中国医学物理学杂志, 2020, 卷号: 37
作者:  
徐静;  汪磊;  赵俊;  花昌义;  朱灵
  |  收藏  |  浏览/下载:53/0  |  提交时间:2021/11/29
Station mode for attitude determination of small-multi-target with high speed (EI CONFERENCE) 会议论文  OAI收割
2010 International Conference on E-Product E-Service and E-Entertainment, ICEEE2010, November 7, 2010 - November 9, 2010, Henan, China
作者:  
Wang J.;  Zhao L.;  Li M.
收藏  |  浏览/下载:25/0  |  提交时间:2013/03/25
A key problem of attitude measurement of small-multi-target with high speed is how to decide the optimum of the CMOS stations. A multi-CMOS station mode is designed in this paper  multiple CMOS videos were placed on two parallel sides in measurement system  every two CMOS form an intersection viewing field  multiple viewing field join to cover shooting range  which can augment Effective Viewing Field(EVF)  increase capture ratio of objects with high speed and measurement precision of small objects. When an object passes through the joint area  it will be imaged separately on each CMOS focal plane. Multiple CMOS videos were triggered synchronously  a sequence of image information was extracted  the target attitude was confirmed by digital image processing technology. The merit of station mode is low cost  large measurement scope  extending freely and so on. 2010 IEEE.  
Embedded system of image storage based on Fiber Channel (EI CONFERENCE) 会议论文  OAI收割
Quantum Optics, Optical Data Storage, and Advanced Microlithography, November 12, 2007 - November 14, 2007, Beijing, China
作者:  
Wang H.;  Wang H.;  Wang H.;  Wang H.;  Chen X.
收藏  |  浏览/下载:19/0  |  提交时间:2013/03/25
In domains of aerospace  aviation  aiming  and optic measure etc.  the embedded system of imaging  processing and recording is absolutely necessary  which has small volume  high processing speed and high resolution. But the embedded storage technology becomes system bottleneck because of developing slowly. It is used to use RAID to promote storage speed  but it is unsuitable for the embedded system because of its big volume. Fiber channel (FC) technology offers a new method to develop the high-speed  portable storage system. In order to make storage subsystem meet the needs of high storage rate  make use of powerful Virtex-4 FPGA and high speed fiber channel  advance a project of embedded system of digital image storage based on Xilinx Fiber Channel Arbitrated Loop LogiCORE. This project utilizes Virtex4 RocketIO MGT transceivers to transmit the data serially  and connects many Fiber Channel hard drivers by using of Arbitrated Loop optionally. It can achieve 400MBps storage rate  breaks through the bottleneck of PCI interface  and has excellences of high-speed  real-time  portable and massive capacity.  
The geometric distortions correction of uncooled large-sized relative aperture infrared imaging system (EI CONFERENCE) 会议论文  OAI收割
Infrared Components and their Applications, November 8, 2004 - November 11, 2004, Beijing, China
作者:  
Sun Q.
收藏  |  浏览/下载:19/0  |  提交时间:2013/03/25
The geometric distortion of infrared image  which was created by the large-sized relative aperture optical system. It could be corrected by the digital image processing technology. The magnitude of distortion would be enlarged quickly with the enlargement of relative aperture. Though the distortion could not impact on the articulation of the image  it would affect geometric location precision of the image directly. In this paper  the distortion correction of uncooled large-sized relative aperture infrared imaging system was discussed and the mathematical model of distortion correction was established. A algorithm of digital image processing was presented and applied based on control points by combining polynomial warping and space variant linear image interpolation. The method of polynomial warping was used to establish the locality relationship between the original image and the distortion ones. The space-variant linear image interpolation provided an efficient way to rebuild the frame of images. The computational costs of the proposed approach are very little and the precision is almost as high as the method of bicubic interpolation when compared to those of state-of-the-art nonlinear interpolation operators.