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:
HANDOM: Heterogeneous Attention Network Model for Malicious Domain Detection 期刊论文  OAI收割
COMPUTERS & SECURITY, 2023, 卷号: 125, 页码: 14
作者:  
Wang, Qing;  Dong, Cong;  Jian, Shijie;  Du, Dan;  Lu, Zhigang
  |  收藏  |  浏览/下载:28/0  |  提交时间:2023/07/12
Automatic Crater Detection by Training Random Forest Classifiers with Legacy Crater Map and Spatial Structural Information Derived from Digital Terrain Analysis 期刊论文  OAI收割
ANNALS OF THE AMERICAN ASSOCIATION OF GEOGRAPHERS, 2021, 页码: 22
作者:  
Wang, Yan-Wen;  Qin, Cheng-Zhi;  Cheng, Wei-Ming;  Zhu, A-Xing;  Wang, Yu-Jing
  |  收藏  |  浏览/下载:30/0  |  提交时间:2022/09/21
Automatic Crater Detection by Training Random Forest Classifiers with Legacy Crater Map and Spatial Structural Information Derived from Digital Terrain Analysis 期刊论文  OAI收割
ANNALS OF THE AMERICAN ASSOCIATION OF GEOGRAPHERS, 2021, 页码: 22
作者:  
Wang, Yan-Wen;  Qin, Cheng-Zhi;  Cheng, Wei-Ming;  Zhu, A-Xing;  Wang, Yu-Jing
  |  收藏  |  浏览/下载:40/0  |  提交时间:2022/09/21
Evaluation of spatial upscaling methods based on remote sensing data with multiple spatial resolutions (EI CONFERENCE) 会议论文  OAI收割
Satellite Data Compression, Communications, and Processing VIII, August 12, 2012 - August 13, 2012, San Diego, CA, United states
Ren R.; Gu L.; Cao J.; Chen H.; Sun J.
收藏  |  浏览/下载:38/0  |  提交时间:2013/03/25
In most applications of remote sensing data  special spatial information is required from a finer to a coarser spatial resolution with appropriate upscaling methods. The purpose of this paper is to compare and evaluate current spatial upscaling methods using MODIS remote sensing data with multiple spatial resolutions. In the research  Northeast China was selected as the study area. MODIS data with spatial resolutions of 250 m (2 bands) and 500 m (7 bands) were used as the test data. Through using the selected upscaling methods  the Band 1 and Band 2 data of MODIS were scaled up from 250 m to 500 m spatial resolution. On the basis of land cover characteristics of Northeast China  the MODIS data located in the study area was classified into the five land cover types  including water  grasslands  forests  farmlands and bare lands using maximum likelihood method. The land cover classification results were further compared with MODIS Land Cover Type product. Finally  Structural Similarity (SSIM) was selected to evaluate the effects of these upscaling methods. The research can provide more useful information for spatial scaling transformation in remote sensing data applications. 2012 SPIE.  
The spatial technology application research on the tracing souce project of Chinese civilization 会议论文  OAI收割
33rd Asian Conference on Remote Sensing 2012, ACRS 2012,, Pattaya, Thailand, November 26, 2012 - November 30,2012
Nie, Yuepinga; Yang, Lin; Yu, Lijun; Yao, Yueyin; Gao, Huaguang; Liu, Fang
收藏  |  浏览/下载:29/0  |  提交时间:2014/12/07
Adaptive Image Segmentation based on Fast Thresholding and Image Merging (EI CONFERENCE) 会议论文  OAI收割
16th International Conference on Artificial Reality and Telexistence - Workshops, ICAT 2006, November 29, 2006 - December 1, 2006, Hangzhou, China
作者:  
Zhang Y.;  Wang Y.;  Wang Y.;  Wang Y.;  Wang Y.
收藏  |  浏览/下载:20/0  |  提交时间:2013/03/25
Image segmentation is the first essential and important step of low level vision. This paper proposes a novel algorithm for adaptive image segmentation  it can be applied in many conditions  based on thresholding technique and segments merging according to their characteristics combine with spatial position. Our earlier work of getting the entire information of the histogram could help choose the multiple thresholds. However  including complex target segmented. We describe the algorithm in detail and perform simulation experiments. The computation based on pixels can fully parallel processing to save time. 2006 IEEE.  not all the peaks of the histogram correspond to obvious structural unit in the image. Spatial information must be involved. This paper also suggests subjoining segments matching for video image tracking. They will give great help to image segmentation. The proposed algorithm can meet the real-time requirement and lead to higher segmentation accuracy  some types of texture can also be segmented well