中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
长春光学精密机械与物... [2]
遥感与数字地球研究所 [2]
地理科学与资源研究所 [1]
光电技术研究所 [1]
自动化研究所 [1]
采集方式
OAI收割 [7]
内容类型
会议论文 [4]
期刊论文 [2]
EI期刊论文 [1]
发表日期
2023 [1]
2018 [1]
2012 [1]
2007 [2]
2006 [2]
学科主题
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Contour Primitive of Interest Extraction Network Based on Dual-Metric One-Shot Learning for Vision Measurement
期刊论文
OAI收割
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS, 2023, 卷号: 19, 期号: 4, 页码: 5839-5848
作者:
Qin, Fangbo
;
Lin, Shan
;
Xu, De
  |  
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2023/11/17
Feature extraction
Measurement
Task analysis
Imaging
Image segmentation
Prototypes
Training
Contour extraction
deep learning
metric learning
one-shot learning
vision measurement
Quasi-Talbot effect of orbital angular momentum beams for generation of optical vortex arrays by multiplexing metasurface design
期刊论文
OAI收割
NANOSCALE, 2018, 卷号: 10, 期号: 2, 页码: 666-671
作者:
Gao, Hui
;
Li, Yang
;
Chen, Lianwei
;
Jin, Jinjin
;
Pu, Mingbo
  |  
收藏
  |  
浏览/下载:40/0
  |  
提交时间:2019/08/23
Angular momentum
Contour measurement
Diffraction gratings
Numerical methods
A new method of DEM generation from contour line
EI期刊论文
OAI收割
2012
作者:
Yue Tianxiang
收藏
  |  
浏览/下载:13/0
  |  
提交时间:2012/11/23
Contour measurement
Control
Forestry
Optimization
Scaling and analyzing the influence of fluid surface of fluid with nano-granular through speckle pattern experiment (EI CONFERENCE)
会议论文
OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Advanced Optical Manufacturing Technologies, July 8, 2007 - July 12, 2007, Chengdu, China
作者:
Wang X.
;
Wang Y.
;
Wang Y.
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2013/03/25
An optical system with double beam interference system was designed to measure the movement of nano-particles in fluid with laser speckle technology. In order to investigate the influence of the scattering light generated from liquid surface on speckle patterns
the liquid surface contour was dynamically detected by WYKO during nano-particle movement. The result demonstrates that the fluctuation of fluid surface is slight. Meanwhile
in order to further analyze this effect
a piece of ground glass was employed. The process of ground glass to be polished to optical glass was studied and tested continuously using WYKO and laser speckle technology. And then
the speckle patterns generated from kerosene fluid surface were studied. By contrast
the results show that
the fluid surface is transparent to the measurement wavelength. The influence of the surface of fluid can be neglected. Furthermore
the conclusion illustrates that laser speckle technique is an effective and reliable method to study the movement of nano-granular in fluid.
Research on terrain representation error and average slope error estimation model of Beijing based on DEM
会议论文
OAI收割
Geoinformatics 2007: Geospatial Information Science, Nanjing, China, May 25, 2007 - May 27,2007
Li, Jing
;
Zhang, Chao
;
Tang, Quan
;
Li, Haixia
收藏
  |  
浏览/下载:8/0
  |  
提交时间:2014/12/07
Error analysis
Contour measurement
Data acquisition
Mathematical models
Intelligent MRTD testing for thermal imaging system using ANN (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
Sun J.
;
Ma D.
收藏
  |  
浏览/下载:27/0
  |  
提交时间:2013/03/25
The Minimum Resolvable Temperature Difference (MRTD) is the most widely accepted figure for describing the performance of a thermal imaging system. Many models have been proposed to predict it. The MRTD testing is a psychophysical task
for which biases are unavoidable. It requires laboratory conditions such as normal air condition and a constant temperature. It also needs expensive measuring equipments and takes a considerable period of time. Especially when measuring imagers of the same type
the test is time consuming. So an automated and intelligent measurement method should be discussed. This paper adopts the concept of automated MRTD testing using boundary contour system and fuzzy ARTMAP
but uses different methods. It describes an Automated MRTD Testing procedure basing on Back-Propagation Network. Firstly
we use frame grabber to capture the 4-bar target image data. Then according to image gray scale
we segment the image to get 4-bar place and extract feature vector representing the image characteristic and human detection ability. These feature sets
along with known target visibility
are used to train the ANN (Artificial Neural Networks). Actually it is a nonlinear classification (of input dimensions) of the image series using ANN. Our task is to justify if image is resolvable or uncertainty. Then the trained ANN will emulate observer performance in determining MRTD. This method can reduce the uncertainties between observers and long time dependent factors by standardization. This paper will introduce the feature extraction algorithm
demonstrate the feasibility of the whole process and give the accuracy of MRTD measurement.
Automatic building extraction from LIDAR point data in urban areas
会议论文
OAI收割
Geoinformatics 2006: Remotely Sensed Data and Information, Wuhan, China, October 28, 2006 - October 29,2006
Chengyi, Wang
;
Zhongming, Zhao
收藏
  |  
浏览/下载:14/0
  |  
提交时间:2014/12/07
Optical radar
Buildings
Contour measurement
Database systems
Feature extraction
Lasers
Photodetectors
Robustness (control systems)
Vegetation