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... [1]
云南天文台 [1]
合肥物质科学研究院 [1]
采集方式
OAI收割 [3]
内容类型
会议论文 [2]
期刊论文 [1]
发表日期
2022 [1]
2018 [1]
2006 [1]
学科主题
天文学::太阳与太阳... [1]
筛选
浏览/检索结果:
共3条,第1-3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
基于形态学与多项式拟合的紫外拉曼荧光背景扣除算法
期刊论文
OAI收割
光学学报, 2022, 卷号: 42
作者:
司赶上
;
刘家祥
;
李振钢
;
宁志强
;
方勇华
  |  
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2023/11/10
spectroscopy
Raman spectroscopy
ultra-violet Raman
background subtraction
morphology
polynomial fitting
光谱学
拉曼光谱技术
紫外拉曼
背景扣除
形态学
多项式拟合
A method for correcting illumination unevenness of solar image
会议论文
OAI收割
Beijing, China, 2017-11-24
作者:
Fu, Xiaona
;
Ji KF(季凯帆)
;
Yang, Yunfei
;
Duan, Wenliang
;
Deng, Hui
  |  
收藏
  |  
浏览/下载:37/0
  |  
提交时间:2018/06/04
Uneven Illumination
Background Fitting
Mask
Research on tracking approach to low-flying weak small target near the sea (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:
Xue X.-C.
收藏
  |  
浏览/下载:32/0
  |  
提交时间:2013/03/25
Automatic target detection is very difficult in complicate background of sea and sky because of the clutter caused by waves and clouds nearby the sea-level line. In this paper
in view of the low-flying target near the sea is always above the sea-level line
we can first locate the sea-level line
and neglect the image data beneath the sea-level line. Thus the noise under the sea-level line can be suppressed
and the executive time of target segmentation is also much reduced. A new method is proposed
which first uses neighborhood averaging method to suppress background and enhance targets so as to increase SNR
and then uses the multi-point multi-layer vertical Sobel operator combined with linear least squares fitting to locate the sea-level line
lastly uses the centroid tracking algorithm to detect and track the target. In the experiment
high frame rate and high-resolution digital CCD camera and high performance DSP are applied. Experimental results show that this method can efficiently locate the sea-level line on various conditions of lower contrast
and eliminate the negative impact of the clutter caused by waves and clouds
and capture and track target real-timely and accurately.