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
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16条，第1-10条 帮助

条数/页： 排序方式：
AIGC Image Features for GIS: A Preliminary Test of Elements, Colors, and Spatial Structure in Recommendation Tasks 期刊论文  OAI收割
WEB AND WIRELESS GEOGRAPHICAL INFORMATION SYSTEMS, W2GIS 2025, 2026, 卷号: 15946, 页码: 20-30
作者:  Wang, Qiang;  Yu, Zhihang;  Wang, Shu;  Zhu, Yunqiang
  |  收藏  |  浏览/下载：1/0  |  提交时间：2026/02/09
Resource-based cities: Spatial structure and evolutionary identification based on nighttime light images 期刊论文  OAI收割
FRONTIERS IN EARTH SCIENCE, 2022, 卷号: 10, 页码: 16
作者:  Lu, Shuo;  Zhang, Wenzhong;  Li, Jiaming;  Wang, Shaohua
  |  收藏  |  浏览/下载：69/0  |  提交时间：2022/11/09
Resource-based cities: Spatial structure and evolutionary identification based on nighttime light images 期刊论文  OAI收割
FRONTIERS IN EARTH SCIENCE, 2022, 卷号: 10, 页码: 16
作者:  Lu, Shuo;  Zhang, Wenzhong;  Li, Jiaming;  Wang, Shaohua
  |  收藏  |  浏览/下载：36/0  |  提交时间：2022/11/09
Geometry Sensitive Cross-Modal Reasoning for Composed Query Based Image Retrieval 期刊论文  OAI收割
IEEE TRANSACTIONS ON IMAGE PROCESSING, 2022, 卷号: 31, 页码: 1000-1011
作者:  Zhang, Feifei;  Xu, Mingliang;  Xu, Changsheng
  |  收藏  |  浏览/下载：67/0  |  提交时间：2022/02/16
Identification of Multiscale Spatial Structure of Lunar Impact Crater: A Semivariogram Approach 期刊论文  OAI收割
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2021, 卷号: 14, 页码: 2731-2739
作者:  Wang, Jiao;  Ming, Dongping;  Cheng, Weiming
  |  收藏  |  浏览/下载：33/0  |  提交时间：2021/06/10
Identification of Multiscale Spatial Structure of Lunar Impact Crater: A Semivariogram Approach 期刊论文  OAI收割
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING, 2021, 卷号: 14, 页码: 2731-2739
作者:  Wang, Jiao;  Ming, Dongping;  Cheng, Weiming
  |  收藏  |  浏览/下载：35/0  |  提交时间：2021/06/10
Structure Preserving Convolutional Attention for Image Captioning 期刊论文  OAI收割
APPLIED SCIENCES-BASEL, 2019, 卷号: 9, 期号: 14, 页码: 10
作者:  Lu, Shichen;  Hu, Ruimin;  Liu, Jing;  Guo, Longteng;  Zheng, Fei
  |  收藏  |  浏览/下载：86/0  |  提交时间：2019/12/16
图像识别中的特征表达方法研究 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院大学, 2015
作者:  刘颖璐
收藏  |  浏览/下载：248/0  |  提交时间：2015/09/02
Study on spectrograph for ionosphere: A broadband imaging instrument prototype for far-ultraviolet (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
作者:  Wang S.-R.;  Lin G.-Y.;  Yu L.
收藏  |  浏览/下载：57/0  |  提交时间：2013/03/25
Current research on space-based exploration for the ionosphere needs more advanced technologies. Because the spectral signals in the ionosphere distributing basically in the far-ultraviolet waveband are very weak. Usual spectrometer structures and detectors such as CCD can't receive enough information. Based on this principle of atmospheric sounding  the imaging spectrometer prototype for ionosphere detection application was designed to solve the problem. This prototype consists of the telescope and the imaging spectrometer. The simple structure and small number of mirrors can help higher transmission efficiency be achieved and weak signals detection be implemented. The telescope is an off-axis parabolic mirror and the spectrometer is a modified Czerny-Turner spectral imaging system. Modified Czerny-Turner spectrometer contains a spherical mirror  a fixed plane grating and a toroidal mirror. By adjusting the incident angle to the collimating mirror and using toroidal mirror  coma and astigmatism were corrected well. We also optimize distances between the grating to the focusing mirror and the focusing mirror to the image plane to improve disadvantages of traditional Czerny-Turner structure. Designed results demonstrate that aberrations are substantially corrected  and high image quality can be obtained in broad waveband. The photon counting Wedge-Strip-Anode detector with micro-channel planes as the receiving plane is accepted for the instrument prototype. The other photon counting 2-D detector responding well for weak light such as Cross-Delay line detector and MAMA detector can also be used for detection. The calibration and performances testing system is made of a vacuum system  a deuterium lamp  a monochrometer and the instrument prototype. Results obtained from the experiment show that the spectral resolution is 2.4 nm and the spatial resolution is 80 m. The other calibration experiments are running. The technology of the spectrometer prototype is important for the research and applications of ionosphere remote sensing. 2011 SPIE.  
Reflective foveated optical imaging system based on liquid crystal spatial light modulator (EI CONFERENCE) 会议论文  OAI收割
Optical Design and Testing IV, October 18, 2010 - October 20, 2010, Beijing, China
Peng Q.-Q.; Chang J.; Feng S.-L.; Wang R.-R.
收藏  |  浏览/下载：59/0  |  提交时间：2013/03/25
Based on reflective liquid crystal spatial light modulator (SLM)  a new foveated optical imaging system is proposed. High quality imaging can be realized at any region of interest (ROI) within the field-of-view (FOV) by utilizing the SLM to correct the aberration of different regions dynamically. A reflective cassegrain optical structure is proposed  which is designed  optimized and matched with the reflective SLM to construct a more practical foveated imaging system. This reflective imaging system has a large aperture so that enough light can reach the image plane. It also makes the total length of the system shorter and therefore more practical. We also simulate and analyze the system. This kind of foveated optical imaging system can be applied in wide FOV imaging aspects to reduce bandwidth and optics complexity  and to achieve weight reduction and miniaturization. 2010 Copyright SPIE - The International Society for Optical Engineering.