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
  
  1. CAS IR Grid
  2. 长春光学精密机械与物理研究所
  3. 中国科学院长春光学精密机械与物理研究所
  4. 中科院长春光机所知识产出
  5. 会议论文
A hybrid median filter for enhancing dim small point targets and its fast implementation (EI CONFERENCE)

文献类型：会议论文

作者Yang Q.
出版日期2011
会议名称2011 International Conference on Multimedia and Signal Processing, CMSP 2011, May 14, 2011 - May 15, 2011
会议地点Guilin, Guangxi, China
关键词Weak stars and middle altitude orbit satellites or high altitude orbit satellites are presented as dim point targets in images of astronomical observation. They have low intensity and occupy few pixels in image. In most situations the background of sky is always ununiform and there exists pulse noises. Thus results in targets submerging in background noises and low signal noise ratio (SNR). Median filter is an effective method for removing pulse noise. But it can blur image after modifying gray of non-noise pixels when image has low SNR. A hybrid median filter algorithm is proposed to process low SNR dim point targets image. The newly proposed method can suppress the pulse noises also can increase target $SNR$ and does not add extra fake targets. The time complexity of median filter is O(N2)(N is the widow size) and is difficult to implement in hardware. For quasi real time application a fast implementation of our hybrid median filter is proposed to reduce the time complexity to O(N). Experimental results show that the newly proposed algorithm is superior to ordinary median filter and fast median filter by comparing visual effect and performance. 2011 IEEE.
页码239-242
收录类别EI
源URL[http://ir.ciomp.ac.cn/handle/181722/33171]  
专题长春光学精密机械与物理研究所_中科院长春光机所知识产出_会议论文
推荐引用方式
GB/T 7714		 Yang Q.. A hybrid median filter for enhancing dim small point targets and its fast implementation (EI CONFERENCE)[C]. 见:2011 International Conference on Multimedia and Signal Processing, CMSP 2011, May 14, 2011 - May 15, 2011. Guilin, Guangxi, China.

入库方式： OAI收割

来源：长春光学精密机械与物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。