Dissertation > Excellent graduate degree dissertation topics show

The Research of Monitoring Winter Wheat Growth Based on HJ-1 Data

Author: FengHaiKuan
Tutor: SongWeiDong
School: Liaoning Technical University
Course: Photogrammetry and Remote Sensing
Keywords: CCD HSI physical and chemical parameters correlation analysis growth monitoring
CLC: S126;TP79
Type: Master's thesis
Year: 2011
Downloads: 112
Quote: 0
Read: Download Dissertation


Dynamic monitoring of crop growth can keep abreast of the crop growth status, seedlings, soil moisture, nutriture and its changes. Then, a variety of management strategies will be taken to ensure the crop normal growth. At the same time, the monitoring can also provide the losses when the meteorological disasters, pests or diseases happen. In all, the crop growth dynamic monitoring is of great importancee.In this paper, systematic study has been done to monitor the growth of Beijing winter wheat. The data sources are three HSI (Hyperspectral Image) of environmental satellites gotten in 2009, multispectral images and ground hyperspectral data and physical and chemical parameters gotten in 2010. The main works are as follows:(1)Data acquisition and processing. This includes the acquisition and processing of ground hyperspectral data, HSI hyperspectral images, multispectral images, physical and chemical parameters such as LAI (Leaf Area Index), chlorophyll, soluble sugar, leaf total nitrogen and so on. The Remote sensing images processing includes geometric correction, radiometric calibration, and atmospheric correction.(2)The Gaussian function is taken to simulate the response function of HSI, and the ground hyperspectral data is matched to the HSI channels. The correlative analysis between the original spectra, derivative spectra, normalized spectral index (NDSI), subtraction Index (SSI) of the ground ASD data and its simulating HSI and LAI, chlorophyll a, chlorophyll b, chlorophyll a + b, soluble sugar and total nitrogen are taken. After choosing the sensitive bands, the statistical model is established.(3)The red edge parameters were extracted from similating HSI, and the correlation analysis between the red edge parameters and physical and chemical parameters of winter wheat were carried on. The models based on red edge width, NDSI to predict leaf nitrogen content and LAI respectively, and based on SSI to predict chlorophyll a , chlorophyll b, chlorophyll a + b and soluble sugars were constructed. Further, carbon and nitrogen ratio were calculated by soluble sugars and nitrogen. The mapping of the various physical and chemical parameters of experimental area was done by the HSI image. The growth monitoring is done using LAI, chlorophyll a, chlorophyll b, chlorophyll a + b, carbon and nitrogen ratio. At last, the RGB false color was composed with LAI, chlorophyll, carbon and nitrogen ratio.(4)Eight vegetation indexes are constructed by matched spectral reflectance, and the correlative analysis was done to choose the best index. The statistical model was established between the selected index and LAI. Three growth stages LAI were inversed and verified. Then the growth monitoring was done for the classification and grading of LAI.(5)NIR-R spectral was constructed by CCD data of environment satellite to calculate the slope of the soil and ,the vertical dry vegetation index (PDI) . Based on the surface emissivityεand atmospheric moisture contentω, the canopy temperature of winter wheat and the temperature of vegetation drought index (TVDI) were calculated by the thermal infrared channel method. The classification and grading was done on the two kinds of drought indexes to monitor the drought, also comparison were done between them.Monitoring crop growth using HJ-1 HSI data, the accuracy are as follows: LAI is the highest with verification accuracy is 0.8601, carbon to nitrogen ratio is second with 0.8008 accuracy, the lowest is chlorophyll, the accuracy of chlorophyll b, chlorophyll a + b, chlorophyll a are 0.6224 , 0.533,0.4544 respectively. Three growth stages LAI are predicted using CCD data, the verified accuracy are 0.8145,0.6789,0.8502. Based on the soil moisture, the inversed spatial distribution and levels of temperature Vegetation Dryness Index (TVDI) and perpendicular drought index ( PDI) are consistent with the actual situation, and the monitoring results are consistent. In all, those show that monitoring growth and drought are feasible using the HSI, CCD, and IRS data of HJ-1

Related Dissertations

  1. Study on Two Dimensional of Auto-Collimator Based on DSP,TH741.14
  2. Research on Temperature Measurement Technique Based on CCD Image Sensor,TH811
  3. Research on the Optimization of Laser Triangulation Device,TH744.5
  4. The Distribution Characteristics of Osmiophilic Granules in Tobacco Leaves at Different Altitudes and the Relationship with the Quality of Flue-cured Tobacco Leaves of Huili,S572
  5. Analysis on Characteristics and Discriminant of Aroma Types of Flue-Cured Tobacco,S572
  6. Evaluation of Photosynthetic Efficiancy of Seedlings of the Hybrid Progenies (F1) in Peach,S662.1
  7. Study on Growth Monitoring Technique Based on Pixel Un-Mixing Method and HJ Remote Sensing Images in Paddy Rice,S511
  8. Study on Growth Monitoring and Predicting Technique Based on Integration of Remote Sensed Information and Model in Wheat,S512.1
  9. Spectrum Variation of Vegetation in Yanzhou Coal Mine Area and Heavy Metal Stress Characteristic,X173
  10. Xi \,B244.7
  11. Visual-based Localization Algorithm Design on Humanoid Robot Soccer,TP391.41
  12. POS data is based multidimensional space of marketing analysis,TP311.13
  13. Data Collecting and Processing of Multi-Linear-CCD Visual Measuring System,TP274.2
  14. Study on Detection Technology of Micro Morphology Based on Laser Vision,TP391.41
  15. Research on Text Mining System Based on the Recruitment Information in the Web,TP311.13
  16. The Application Research of Image Processing in the Urban Architectural Color Analysis and Evaluation,TP391.41
  17. Research of Intrusion Detection Model Based on Date Mining,TP393.08
  18. Study of Methane Apparatus of Interference Type Base on ARM and Linear CCD,TP216.1
  19. The Design and Realization of Image Collection System of Large Matrix-CCD Based on SOPC,TP274.2
  20. R&D of Portable Security-Engineering Testing Instruments,TP216
  21. The Features and Relationship of College Students’ Academic Stressors and the Sleep Quality,B841

CLC: > Industrial Technology > Automation technology,computer technology > Remote sensing technology > The application of remote sensing technology
© 2012 www.DissertationTopic.Net  Mobile