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长春光学精密机械与物... [3]
理论物理研究所 [1]
自动化研究所 [1]
沈阳自动化研究所 [1]
长春应用化学研究所 [1]
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OAI收割 [7]
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会议论文 [3]
期刊论文 [3]
学位论文 [1]
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2022 [1]
2012 [1]
2011 [1]
2010 [1]
2006 [2]
2003 [1]
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学科主题
Physics [1]
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Shape Sensing for Continuum Robots by Capturing Passive Tendon Displacements with Image Sensors
期刊论文
OAI收割
IEEE Robotics and Automation Letters, 2022, 卷号: 7, 期号: 2, 页码: 3130-3137
作者:
Li JH(李建华)
;
Zhang FM(张芳敏)
;
Yang, Zhenguo
;
Jiang, Zhenming
;
Wang ZD(王志东)
  |  
收藏
  |  
浏览/下载:48/0
  |  
提交时间:2022/02/11
Surgical robotics steerable catheters/needles
tendon/wire mechanism
shape sensor
Thermal-optical analysis for optical window under high Mach flight condition (EI CONFERENCE)
会议论文
OAI收割
2012 International Conference on Optoelectronics and Microelectronics, ICOM 2012, August 23, 2012 - August 25, 2012, Changchun, China
Zhong C.
;
Ding Y.
;
Fu J.
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2013/03/25
When the airborne platform
where installed the optical window
is in high Mach flight condition. The aerodynamic heating effect
which will influence optical properties of optical window
becomes very obvious. This special flight condition will change shape
refractive index and also refractive index distribution of optical window due to the generated high axial temperature gradient. To ensure image quality of aerial remote sensor
the present paper does thermal-optical analysis for optical window under high Mach flight condition. Then
on this basis
do simulations according to theoretical analysis and boundary conditions derived from practical assumptions in order to get the final conclusions. 2012 IEEE.
One-step synthesized silver micro-dendrites used as novel separation mediums and their applications in multi-DNA analysis
期刊论文
OAI收割
chemical communications, 2011, 卷号: 47, 期号: 38, 页码: 10581-10583
Yang X
;
Du Y
;
Li D
;
Lv ZZ
;
Wang EK
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2012/06/12
NANOCRYSTAL SYNTHESIS
PATHOGEN DNA
SENSOR
SHAPE
NANOPARTICLES
HYBRIDIZATION
MONODISPERSE
INTERFACE
SEQUENCE
ASSAY
Study of dimension dependent diffusion coefficient of titanium dioxide nanoparticles
期刊论文
OAI收割
MATERIALS CHEMISTRY AND PHYSICS, 2010, 卷号: 123, 期号: 40942, 页码: 791-794
作者:
Mishra, Shree
;
Gupta, Sanjeev K.
;
Jha, Prafulla K.
;
Pratap, Arun
;
Jha, PK , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
  |  
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2012/08/02
Nanocrystalline Materials
Melting Temperature
Size
Shape
Tio2
Stability
Sensor
Geometrical modulation transfer function of different active pixel of CMOS APS (EI CONFERENCE)
会议论文
OAI收割
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 2, 2005 - November 5, 2005, Zian, China
作者:
Li J.
;
Liu J.
;
Liu J.
;
Liu J.
;
Li J.
收藏
  |  
浏览/下载:26/0
  |  
提交时间:2013/03/25
The geometrical Modulation Transfer Function (MTF) of CMOS APS (active pixel sensor) is analyzed in this paper. Advanced APS have been designed and fabricated where different pixel shapes such as square
rectangle and L shape
were placed
because the amplifier circuit and other function circuits inter pixel of APS take up some pixel area. MTF is an important figure of merit in focal plane array imaging sensors. Research on analyzing the MTF for the proper pixel shape is currently in progress for a centroidal configuration of a target position. MTF will give us a more complete understanding of the tradeoffs opposed by the different pixel designs and by the signal processing conditions. Based on image sensor sampling and reconstructing model
the MTF expression of any active pixel shape has been deduced in this paper. According to actual pixel shape
three different active area pixels were analyzed
they were square
rectangle
and L shape
their Fill Factor (FF) is 30%
44% and 55%
respectively. Results of simulation experiments indicate that different pixel geometrical characteristics contribute significantly to the figures of their MTF. Different geometrical shape of active sensitive area of pixel and different station in pixel would influence MTF figures. The analysis results are important in designing better APS pixel and more important in analyzing imaging system performance of APS subpixel precision system.
Active pixel sensor geometrical characteristic effects on star image subdivided locating accuracy for star tracker (EI CONFERENCE)
会议论文
OAI收割
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Liu J.
;
Liu J.
;
Liu J.
;
Li J.
;
Li J.
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/03/25
Active pixel sensor (APS) star tracker becomes an investigated hotspot because of its technical advantages. And centroid algorithm is a subpixel method proper to star position calculation because of its high accuracy and simplicity. When centroid algorithm is applied on APS star tracker
APS pixel geometrical characteristics might effect on star image position accuracy. Because the amplifier circuit and other function circuits inter pixel of APS take up some pixel area
the Fill Factor is less than 100%. Moreover
the active sensitive area has a certain geometrical shape
such as square
rectangle and L shape. The Fill Factor of pixel influences on star image subdivided locating accuracy when using centioid algorithm. In this paper
we have analyzed all pixel geometrical characteristics influence on the star position accuracy. From simulation experiments
we can conclude that Fill factor and pixel geometric shape influence on star position accuracy. The star locating error increased when Fill Factor decreased
and different geometrical shape of active sensitive area of pixel can make different influence on star location accuracy
the symmetrical sensitive area in x or y axis have symmetrical location error in the same axis.
多传感器卫星图像的配准技术研究
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, 2003
作者:
张朝晖
收藏
  |  
浏览/下载:58/0
  |  
提交时间:2015/09/02
多传感器图像配准
形状矩阵
NLJRBS参数化描述
智能剪刀
滤波
信息熵
水体提取
multi-sensor image registration
shape matrix
NURBS
filter
intelligent scissor
empirical entropy
water body extraction