×
验证码:
换一张
忘记密码?
记住我
CORC
首页
科研机构
检索
知识图谱
申请加入
托管服务
登录
注册
在结果中检索
科研机构
清华大学 [1]
长春光学精密机械与物... [1]
内容类型
会议论文 [1]
期刊论文 [1]
发表日期
2010 [2]
×
知识图谱
CORC
开始提交
已提交作品
待认领作品
已认领作品
未提交全文
收藏管理
QQ客服
官方微博
反馈留言
浏览/检索结果:
共2条,第1-2条
帮助
已选(
0
)
清除
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
发表日期升序
发表日期降序
作者升序
作者降序
提交时间升序
提交时间降序
题名升序
题名降序
盐城开发空间区划及其思考
期刊论文
2010, 2010
顾朝林
;
张晓明
;
刘晋媛
;
张从果
;
GU Chaolin
;
ZHANG Xiaoming
;
LIU Jinyuan
;
ZHANG Congguo
收藏
  |  
浏览/下载:4/0
Modulation transfer function measurement of sampled imaging systems in field test (EI CONFERENCE)
会议论文
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
Yang L.
;
Sun Q.
;
Wang J.
;
Zhang J.
收藏
  |  
浏览/下载:15/0
  |  
提交时间:2013/03/25
A digital mirror device (DMD) based light projector was developed as the target generator in modulation transfer function (MTF) measurement. In order to overcome the sampling-scene phase effect in MTF measurement of sampled imaging systems
a method using random targets is introduced to yield a phase-averaged MTF. The main potential problem of implementing this method is the fact that the stationary assumption of the random targets may be vitiated in practical measurement
especially in field test due to the ill condition. We provide an efficient model-independent way of analyzing and isolating the spectral contents arising from these additional contributions to MTF measurement. Algorithms with adaptive parameter selection were also developed for spectral estimation of the test image in order to overcome the challenge brought by the size limit of the test matrices for one certain field of view derived from the isoplantic region. The MTF measurement of a CCD video imager is used to demonstrate the measurement technique and illustrate the benefits over other methods. In order to validate the results
comparisons have been made between MTF measurements of imager implemented using this method and bar target direct measurements. 2010 Copyright SPIE - The International Society for Optical Engineering.
©版权所有 ©2017 CSpace - Powered by
CSpace