中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
机构
采集方式
内容类型
发表日期
学科主题
筛选

浏览/检索结果: 共6条,第1-6条 帮助

条数/页: 排序方式:
图像特征的相似性度量 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2009
作者:  
严望
收藏  |  浏览/下载:139/0  |  提交时间:2015/09/02
Basic research of the relationship between irradiation dose and volume in radiation-induced pulmonary injury 期刊论文  OAI收割
CHINESE MEDICAL JOURNAL, 2009, 卷号: 122
-
  |  收藏  |  浏览/下载:11/0  |  提交时间:2020/10/26
Histogram analysis of diffusion measures in clinically isolated syndromes and relapsing-remitting multiple sclerosis 期刊论文  OAI收割
EUROPEAN JOURNAL OF RADIOLOGY, 2008, 卷号: 68, 期号: 2, 页码: 328-334
作者:  
Yu, Chun Shui;  Lin, Fu Chun;  Liu, Yaou;  Duan, Yunyun;  Lei, Hao
收藏  |  浏览/下载:26/0  |  提交时间:2015/10/15
Whole brain diffusion tensor imaging histogram analysis in vascular cognitive impairment 期刊论文  OAI收割
JOURNAL OF THE NEUROLOGICAL SCIENCES, 2008, 卷号: 268, 期号: 1-2, 页码: 60-64
作者:  
Zhou, Yan;  Lin, Fu-chun;  Zhu, Jiong;  Zhuang, Zhi-guo;  Li, Yan-sheng
收藏  |  浏览/下载:24/0  |  提交时间:2015/10/13
High-accuracy real-time automatic thresholding for centroid tracker (EI CONFERENCE) 会议论文  OAI收割
ICO20: Optical Information Processing, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Zhang Y.
收藏  |  浏览/下载:37/0  |  提交时间:2013/03/25
Many of the video image trackers today use the centroid as the tracking point. In engineering  we can get several key pairs of peaks which can include the target and the background around it and use the method of Otsu to get intensity thresholds from them. According to the thresholds  it give a great help for us to get a glancing size  a target's centroid is computed from a binary image to reduce the processing time. Hence thresholding of gray level image to binary image is a decisive step in centroid tracking. How to choose the feat thresholds in clutter is still an intractability problem unsolved today. This paper introduces a high-accuracy real-time automatic thresholding method for centroid tracker. It works well for variety types of target tracking in clutter. The core of this method is to get the entire information contained in the histogram  we can gain the binary image and get the centroid from it. To track the target  so that we can compare the size of the object in the current frame with the former. If the change is little  such as the number of the peaks  the paper also suggests subjoining an eyeshot-window  we consider the object has been tracked well. Otherwise  their height  just like our eyes focus on a target  if the change is bigger than usual  position and other properties in the histogram. Combine with this histogram analysis  we will not miss it unless it is out of our eyeshot  we should analyze the inflection in the histogram to find out what happened to the object. In general  the impression will help us to extract the target in clutter and track it and we will wait its emergence since it has been covered. To obtain the impression  what we have to do is turning the analysis into codes for the tracker to determine a feat threshold. The paper will show the steps in detail. The paper also discusses the hardware architecture which can meet the speed requirement.  the paper offers a idea comes from the method of Snakes  
Multiscale differential fractal feature with application to target detection 会议论文  OAI收割
Conference on Acquisition, Tracking, and Pointing XVIII, Orlando, FL, April 14-14, 2004
作者:  
Shi ZL(史泽林);  Wei Y(魏颖);  Huang SB(黄莎白)
收藏  |  浏览/下载:22/0  |  提交时间:2012/06/06