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This paper proposes a real-time hand finger motion capturing method using Kinect. It consists of three modules: hand region segmentation, feature points extraction, and joint angle estimation. The first module extracts the hand region from the depth image. The second module applies a pixel classifier to segment the hand region into eight characteristic sub-regions and the residual sub-region. The...
During the last decade unmanned aerial systems (UAS) have been intensively applied to create 3-dimensional models of land surface features for various applications. Although, UAS data can be jointly used with airborne LiDAR data to generate a canopy height model (CHM) of forest stands, it is rare to find research concerned the generation of forest CHM using only UAS data. This paper investigate a...
Linking ecology with evolutionary biology is important to understand how environments drive population and species divergence. Phenotypically diverse Salix species, such as lowland riparian willow trees and middle- to high-elevation multistemmed shrubs and alpine dwarf shrubs, provide opportunities for studying genetic divergence driven by ecological factors. We used amplified fragment...
This paper extends a previous work on node link tree visualization and interaction by providing visual clues on hidden structures. We adopt the effectiveness of DOI Tree, a multi-focal tree layout algorithm, for exploring large hierarchical structures. The advantages of visualization are its most familiar mapping for users, its capability on providing multiple focused nodes, and its dynamic rescaling...
Xinfeng, is the typical region of the vegetation restoration of serious soil and water loss zone in Jiangxi Province, in which dynamics of species diversity and achievement of 6 restoration communities were analyzed using three diversity indices, Detrended correspondence analysis (DCA) and Detrended canonical correspondence analysis (DCCA). Investigations were carried out in 2004yr and 2008yr. The...
Xinfeng, is the typical region of the vegetation restoration of serious soil and water loss zone and a typical national demonstration zone for biological measures to control soil erosion in Jiangxi Province, SE China, in which the relationship between surface runoff and environmental factors, soil features and community features of restoration vegetation were analyzed using Detrended correspondence...
Laser induced breakdown spectroscopy (LIBS) has been used for the determination of the species and concentration of elements in industries. However, there is less research for LIBS analysis of agricultural and environmental samples. In this work, a LIBS system has been evaluated for the determination of nutrition elements in orange leaves. The experimental setup was designed by using a Nd:YAG laser...
To explore new physical means in controlling locusts, near infrared semiconductor diode laser (wavelength 808 nm, power 2 W) was used to evaluate the effect on locusts and green bristle grass by laser irradiation. Locusta Migratoria Manilensis and fresh gramineous plant green bristle grass were chosen as experimental objects. To observe the death rate of locusts, the heads of I-III instar nymphs and...
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