According to the character of CT image, surface porosity and voxel porosity are defined from pixel and voxel scale respectively. Digital Terrain Model (DTM) method is applied to calculate the surface porosity, and the...According to the character of CT image, surface porosity and voxel porosity are defined from pixel and voxel scale respectively. Digital Terrain Model (DTM) method is applied to calculate the surface porosity, and the method of voxel porosity is also presented based on Industrial CT grey image. With proposed methods, CT images of coal under differ-ent uniaxial loading are analyzed, and the relation curves between two kinds of porosity and stress separately are shown. All of these porosities reflect inner damage of coal. The surface porosity shows the pore with pixel scale, and voxel porosity denotes the pore inner pixel. The voxel porosity reflects the character of CT image better.展开更多
Plants have the distinctive 3D spatial structure that varies among organs,species and communities,and the spatial structure changes as they interact with their environments.The functions linked to fundamental biologic...Plants have the distinctive 3D spatial structure that varies among organs,species and communities,and the spatial structure changes as they interact with their environments.The functions linked to fundamental biological activities such as transpiration,photosynthesis,and growth are also affected by the spatial structure and the environment.In order to promote smart farming using information and communication technology(ICT),it is necessary to measure and utilize information at the cell-organ of plants to the individual and the community levels and the environments in two or even three dimensions.Therefore,this paper introduced the outline of remote sensing of plant functioning and examples of the 3D remote sensing from relatively short distances using drones and ground Lidar.The quality control of rice in the paddy field and chlorophyll fluorescence imaging for photosynthetic diagnosis were also introduced.In addition,a field smart farm and a smart greenhouse,which heavily utilize ICT,built at Takasaki University of Health and Welfare in Gunma,Japan,were also introduced.展开更多
文摘According to the character of CT image, surface porosity and voxel porosity are defined from pixel and voxel scale respectively. Digital Terrain Model (DTM) method is applied to calculate the surface porosity, and the method of voxel porosity is also presented based on Industrial CT grey image. With proposed methods, CT images of coal under differ-ent uniaxial loading are analyzed, and the relation curves between two kinds of porosity and stress separately are shown. All of these porosities reflect inner damage of coal. The surface porosity shows the pore with pixel scale, and voxel porosity denotes the pore inner pixel. The voxel porosity reflects the character of CT image better.
文摘Plants have the distinctive 3D spatial structure that varies among organs,species and communities,and the spatial structure changes as they interact with their environments.The functions linked to fundamental biological activities such as transpiration,photosynthesis,and growth are also affected by the spatial structure and the environment.In order to promote smart farming using information and communication technology(ICT),it is necessary to measure and utilize information at the cell-organ of plants to the individual and the community levels and the environments in two or even three dimensions.Therefore,this paper introduced the outline of remote sensing of plant functioning and examples of the 3D remote sensing from relatively short distances using drones and ground Lidar.The quality control of rice in the paddy field and chlorophyll fluorescence imaging for photosynthetic diagnosis were also introduced.In addition,a field smart farm and a smart greenhouse,which heavily utilize ICT,built at Takasaki University of Health and Welfare in Gunma,Japan,were also introduced.
