中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页
机构
成果
学者
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
长春光学精密机械与物... [2]
地理科学与资源研究所 [1]
软件研究所 [1]
采集方式
OAI收割 [4]
内容类型
会议论文 [3]
期刊论文 [1]
发表日期
2012 [1]
2011 [1]
2009 [1]
2007 [1]
学科主题
Computer S... [1]
筛选
浏览/检索结果:
共4条,第1-4条
帮助
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
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
一种软件工作量估算的不确定性度量方法
期刊论文
OAI收割
Computer Engineering, 2012, 卷号: 38, 期号: 3, 页码: 39-42
解浪
;
杨叶
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2012/11/12
uncertainty
software effort estimation
re-sampling
prediction interval
COCOMO model
variance
The application of template matching arithmetic on Strap-down North Seeking System (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Mechatronic Science, Electric Engineering and Computer, MEC 2011, August 19, 2011 - August 22, 2011, Jilin, China
Li D.-N.
;
Zhu W.
;
Chen T.
收藏
  |  
浏览/下载:19/0
  |  
提交时间:2013/03/25
In order to solve the problem of self-determination directional of theodolite
equipment based on dynamically tuned gyroscope is proposed. The principle of the Multi-position Strap-down North Seeking System is introduced. Mathematical model of the system is discussed. The factors that influence the precision are analyzed. In order to fit the curve of sampling data
back-propagation neural network arithmetic is used in data processing. As templates
curve model is saved at database of the VC software. The template matching arithmetic advanced the measure precision of this system. The measure time of the system is shortened within 1 minute
so it can save time for theodolite. 2011 IEEE.
Geographic Information System Data Sampling Design and Implementation
会议论文
OAI收割
Proceedings of SPIE-The International Society for Optical Engineering
Jiang C. S.
;
Wang J. F.
;
Hu M. G.
;
Li L. F.
;
Cao Z. D.
收藏
  |  
浏览/下载:111/0
  |  
提交时间:2012/06/30
Sampling theory
Sampling Software
Sandwich sampling
Spatial sampling
GIS
gis
soil
Research on the affect of differential-images technique to the resolution of infrared spatial camera (EI CONFERENCE)
会议论文
OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, July 8, 2007 - July 12, 2007, Chengdu, China
Jin G.
;
An Y.
;
Qi Y.
;
Hu F.
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2013/03/25
The optical system of infrared spatial camera adopts bigger relative aperture and bigger pixel size on focal plane element. These make the system have bulky volume and low resolution. The potential of the optical systems can not be exerted adequately. So
one method for improving resolution of infrared spatial camera based on multi-frame difference-images is introduced in the dissertation. The method uses more than one detectors to acquire several difference images
and then reconstructs a new high-resolution image from these images through the relationship of pixel grey value. The technique of difference-images that uses more than two detectors is researched
and it can improve the resolution 2.5 times in theory. The relationship of pixel grey value between low-resolution difference-images and high-resolution image is found by analyzing the energy of CCD sampling
a general relationship between the enhanced times of the resolution of the detected figure with differential method and the least count of CCD that will be used to detect figure is given. Based on the research of theory
the implementation process of utilizing difference-images technique to improve the resolution of the figure was simulated used Matlab software by taking a personality image as the object
and the software can output the result as an image. The result gotten from the works we have finished proves that the technique is available in high-resolution image reconstruction. The resolution of infrared spatial camera can be improved evidently when holding the size of optical structure or using big size detector by applying for difference image technique. So the technique has a high value in optical remote fields.