中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共7条，第1-7条

帮助

条数/页：排序方式：
	A spatiotemporal comprehensive constraint interpolation method for missing values in monthly composite Suomi-NPP VIIRS Cloud Mask images 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF DIGITAL EARTH, 2024, 卷号: 17, 期号: 1, 页码: 20 作者: Liu, Qingyun; Fan, Junfu; Zuo, Jiwei; Shen, Yunpeng; Li, Kuan \| 收藏 \| 浏览/下载：13/0 \| 提交时间：2024/08/30 VIIRS Cloud Mask temporal interpolation methods spatiotemporal comprehensive constraint interpolation spatial autocorrelation inverse distance weight
	Forest ecological security in China: A quantitive analysis of twenty five years 期刊论文 OAI收割 GLOBAL ECOLOGY AND CONSERVATION, 2021, 卷号: 32, 页码: 13 作者: Gao, Xuan; Wang, Guangyu; Innes, John L.; Zhao, Yu; Zhang, Xuanchang \| 收藏 \| 浏览/下载：37/0 \| 提交时间：2022/09/21 Forest ecological security Entropy weight method Temporal and spatial analysis Forest policy
	Spatio-Temporal Coordination and Conflict of Production-Living-Ecology Land Functions in the Beijing-Tianjin-Hebei Region, China 期刊论文 OAI收割 LAND, 2020, 卷号: 9, 期号: 5, 页码: 22 作者: Yu, Zhuxiao; Xu, Erqi \| 收藏 \| 浏览/下载：13/0 \| 提交时间：2021/07/09 production-living-ecology land use multifunctionality spatio-temporal patterns coupling coordination and conflict entropy weight triangle model
	Spatio-Temporal Coordination and Conflict of Production-Living-Ecology Land Functions in the Beijing-Tianjin-Hebei Region, China 期刊论文 OAI收割 LAND, 2020, 卷号: 9, 期号: 5, 页码: 22 作者: Yu, Zhuxiao; Xu, Erqi; Zhang, Hongqi; Shang, Erping \| 收藏 \| 浏览/下载：30/0 \| 提交时间：2021/07/09 production-living-ecology land use multifunctionality spatio-temporal patterns coupling coordination and conflict entropy weight triangle model
	An Enhanced Spatial and Temporal Data Fusion Model for Fusing Landsat and MODIS Surface Reflectance to Generate High Temporal Landsat-Like Data 期刊论文 OAI收割 REMOTE SENSING, 2013, 卷号: 5, 期号: 10, 页码: 5346-5368 作者: Zhang, Wei; Li, Ainong; Jin, Huaan; Bian, Jinhu; Zhang, Zhengjian 收藏 \| 浏览/下载：45/0 \| 提交时间：2013/11/01 data fusion linear spectral mixing model multi-resolution segmentation sliding window temporal weight
	Multiresolution animated models generation based on deformation distance analysis (EI CONFERENCE) 会议论文 OAI收割 2009 International Conference on Computer Modeling and Simulation, ICCMS 2009, February 20, 2009 - February 22, 2009, Macau, China Shixue Z.; Enhua W. 收藏 \| 浏览/下载：61/0 \| 提交时间：2013/03/25 In computer graphics animated models have been widely used to represent time-varying data. Reducing the models complexly is a common way to overcome the rendering limitations. In this paper 2009 IEEE. we propose an efficient method for generating multiresolution animated models based on deformation distance analysis. Our method obtains different LOD models by performing iterative edge contraction operations. We use deformation distance to analysis the deformation degree of the triangle planes during the whole animation and define a deformation weight to be added to the aggregated edge contraction cost. Thus features in areas with large deformation can be preserved well. Besides we propose a mesh optimization method for dynamic model sequence which can efficiently improve the temporal coherence and reduce visual artifacts between adjacent frames. The results show our approach is efficient easy to implement and good quality animated approximations with well-preserved fine details can be generated at any given frame. copy
	An improved method for generating multiresolution animation models (EI CONFERENCE) 会议论文 OAI收割 2009 11th IEEE International Conference on Computer-Aided Design and Computer Graphics, CAD/Graphics 2009, August 19, 2009 - August 21, 2009, Huangshan, China 作者: Zhang S. 收藏 \| 浏览/下载：36/0 \| 提交时间：2013/03/25 In computer graphics animated models are widely used to represent time-varying data. In this paper we propose an improved method to generate multiresolution animation models. We use a curvature sensitive quadric error metric (QEM) criterion as our basic measurement which can preserve local features on the surface. We append a deformation weight to the aggregated edge contraction cost for the whole animation to preserve areas with large deformation. At last we introduce a mesh optimization method to deal with the animation sequence which can efficiently improve the temporal coherence and reduce visual artifacts. The results show our approach is efficient easy to implement and good quality progressive animation models can be generated at any level of detail. 2009 IEEE.