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A Unified Spatio-Temporal Data Model Based on State and Change
A unified spatio temporal data model (SCUDM) based on state and change based on a ternary tuple about object, space and time is proposed and can support both representation of state andchange and representation of spatial temporal topology. Expand
Image fusion method based on the advection equation
An innovative method based on the linear advection equation, an important partial differential equation, to perform the fusion of images that allows us to cope with noisy source image fusion by adding a diffusion term in the equation, thereby combining the denoising process with the fusion process. Expand
An improved image fusion approach
  • Zheng Kou, Kai Liu
  • Mathematics, Engineering
  • International Conference on Graphic and Image…
  • 1 October 2011
In this paper, we present an improved image fusion approach based on Partial Differential Equation (PDE). In the new method, the classical calculation for gradient-difference of neighboring pixels isExpand
Polygon Generalization Based on C-Tree in Scaleless GIS
Scaleless GIS is one of the key technologies of digital earth and web gis. With the development of GIS, the current GIS techniques couldn't meet the requirements of the information society very well.Expand
A numerical study of hail process effects on charge structure and lightning flash rate of thunderstorms
By use of French mesoscale non-hydrostatic numerical model Meso-NH, using two kinds of ice phase particles scheme: ICE3 scheme (no hail), ICE4 scheme (with hail), simulate the thunderstorm cloudsExpand
An ensemble-based variational inversion scheme
To develop the lightning physics and the new lightning protection theory and technology, inversion of thunderstorm charged model is should been done based on E-field data at the ground level, whichExpand
Variational data assimilation experiments of mei-yu front rainstorms in China
The numerical forecasts of mei-yu front rainstorms in China has been an important issue. The intensity and pattern of the frontal rainfall are greatly influenced by the initial fields of theExpand
The research on DMSP nighttime cloud image segmentation
  • K. Liu, Zheng Kou
  • Computer Science
  • 3rd International Conference on Computer Research…
  • 11 March 2011
The results of segmentation show that the IAC model can integrate the information of each channel throughout the segmentation and can be employed in the image with uneven background and output a uniform segmentation result. Expand
Diagnosis analysis of thunderstorm process from June 7 to 8, 2011
In that paper, on the basis of WRF 3.3 model and 0.5°×0.5° NCEP reanalysis data, two thunderstorm processes occurred on June 7, 2011 and June 8, 2011 are simulated, and the pattern field and someExpand
Fusion of DMSP OLS nighttime visible image and OLS thermal infrared image
The results indicate that the qualities of fused images are actually improved relative not only to visible images but also to infrared images after image fusion, and the quality of fused image improves very distinctly relative to the nighttime visible image. Expand