Jiyuan Liu

Learn More
Along with its economic reform, China has experienced a rapid urbanization. This study mapped urban land expansion in China using high-resolution Landsat Thematic Mapper and Enhanced Thematic Mapper data of 1989/1990, 1995/1996 and 1999/2000 and analyzed its expansion modes and the driving forces underlying this process during 1990-2000. Our results show(More)
Image segmentation, which usually employs a statistical model, is an essential step in synthetic aperture sonar (SAS) image processing. This work addresses the Rayleigh mixture model (RMM), representing SAS underwater amplitude image. High resolution SAS image of detected artificial object is segmented using RMM and Markov random field (MRF) model. We(More)
Western Development is an important strategy of China Government. The ecological environment in the western region of China is very fragile, and any improper human activity or resource utilization will lead to irrecoverable ecological degradation. Therefore, the integrated ecosystem assessment in the western region of China is of great significance to the(More)
Emerging threats to the water resources and biodiversity at the roof of the world to Asia's lowland from land-use changes associated with large-scale settlement and piecemeal development The fall of the water Emerging threats to the water resources and biodiversity at the roof of the world to Asia's lowland from land-use changes associated with large-scale(More)
  • 1