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Research of Fractal Compression Algorithm Taking Details in Consideration in Agriculture Plant Disease and Insect Pests Image

Research of Fractal Compression Algorithm Taking Details in ...

引用

the 9th international conference on Computer and computing Technologies in Agriculture (CCTA 2015)

作者： Qiao Deng Chunhong Liu Liting Fu College of Information and Electrical Engineering China Agriculture University

Agriculture plant disease and insect pests is varied and tremendously harmful, so experts are needed to diagnoseBut experts can9;t have the energy and time to the field for the majority of farmers to guide, they ca... 详细信息

ISBN: (纸本)9783319483535

Agriculture plant disease and insect pests is varied and tremendously harmful, so experts are needed to diagnoseBut experts can't have the energy and time to the field for the majority of farmers to guide, they can only get the image through remoteHowever, agriculture plant disease and insect pests image is rich in detail, while transmission bandwidth and storage is limited, it is necessary to compress image to make sure of image qualitythis paper proposes an improved method based on Jacquin theory to reduce coding timeEncoded sub block is classified into detailed block and non-detailed block, so we can reduce the encoding timeExperimental results show that, for the agriculture plant disease and insect pests image which is rich in detail, the number of encoded blocks reduces to 31.45 % and the encoding time reduces to 32.9 % of the original one.

关键词： Plant disease and insect pests image Detail Fractal encoding Image compression

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Agricultural Environmental Information Collection Device Based on Raspberry Pi

Agricultural Environmental Information Collection Device Bas...

引用

the 9th international conference on Computer and computing Technologies in Agriculture (CCTA 2015)

作者： Baofeng Su Linya Huang Zhen Gao Jiao Guo College of Mechanical and Electronic Engineering Northwest A&F University School of Mechanical Engineering Shandong University

ISBN: (纸本)9783319483566

Integrated agricultural environmental information real-time collection, transmission and management is extremely critical for precision agriculture(PA). this paper describes the basic knowledge and primary principles used in an agricultural environmental information collection device. the device is based on Raspberry Pi, combining with GPS module, some digital sensors and analog sensors to measure environmental temperature and humidity, barometric pressure, light intensity, soil moisture and other environmental information accurate collection. All collected data was real-time transmitted to a remote server specified database for management. In the experiment process, the device has been proved to have the ability to catch the distributed information and also can get different centralized data management. the results show the integration of operational information collection, transmission and management, as well as the use of open source software to make it easy to collect multiple types of data parallelism, which provides an important solution for the rapid transformation of agricultural production.

关键词： Agricultural environmental information Integration Open source Raspberry Pi open source DNA Integration integration environmental information data parallel open source software Raspberries Data management Proportional integral agricultural production

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China Topsoil Stripping Suitability Evaluation Based on Soil Properties

China Topsoil Stripping Suitability Evaluation Based on Soil...

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the 9th international conference on Computer and computing Technologies in Agriculture (CCTA 2015)

作者： Yan Xu Yuepeng Wang Xing Liu Dan Luo Hongman Liu College of Resources and Environmental Sciences China Agricultural University Key Laboratory of Land Quality Ministry of Land and Resources YantaiMunicipal Bureau of Land and Resources College of Economics and Management China Agricultural University

ISBN: (纸本)9783319483566

the purpose of topsoil stripping reuse is to provide a good cultivation platform for agricultural site conditions, namely increasing soil thickness and improving soil fertility levels. Based on soil type, using the thickness of the soil and organic matter content as criteria, the natural suitability of stripped topsoil from different regions were evaluated. the evaluation results were divided into five levels: Most suitable, suitable, moderately suitable, less suitable, and unsuitable. the results show that the highest degree of topsoil stripping natural suitability is mainly distributed in the Northeast region, along the middle and lower Yangtze River, and the region south of the Yangtze River. the most unsuitable regions for topsoil stripping natural suitability are mainly located in the hilly regions of the Sichuan Basin and the eastern part of the Northwest. the topsoil stripping process must be based on the soil properties of both the original site and the transplantation location.

关键词： Soil type Topsoil stripping Suitability assessment Land evaluation SOIL TYPES land assessment properties of soils Yangtze River Sichuan Basin agricultural regions suitability organic matter content

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Brazil Soybean Area Estimation Based on Average Samples Change Rate of Two Years and Official Statistics of a Year Before

Brazil Soybean Area Estimation Based on Average Samples Chan...

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the 9th international conference on Computer and computing Technologies in Agriculture (CCTA 2015)

作者： Kejian Shen Weifang Li Zhiyuan Pei Fei Wang Xiaoqian Zhang Guannan Sun Jiong You Quan Wu Yuechen Liu Chinese Academy of Agricultural Engineering Innovation Team of Crop Monitoring by Remote Sensing

Comprehensive, reliable and timely information of Brazil9;s soybean area is necessary for China to make decisions on agricultural related *** sampling method which combined remote sensing and sampling survey is wid... 详细信息

ISBN: (纸本)9783319483566

Comprehensive, reliable and timely information of Brazil's soybean area is necessary for China to make decisions on agricultural related *** sampling method which combined remote sensing and sampling survey is widely used. Due to limitations of width and revisit cycle of medium resolution satellite, this study designed a typical investigation method about Brazil soybean area based on average samples change rate of two years and official statistics of a year before, typical samples were selected to survey, sampling frame was constructed on soybean planting state, the sampling unit was designed as 40 km × 40 km, the sampling proportion was 2 %, average samples change rate of two years were 2013 and 2014. Estimated area was compared with Brazil official harvested area in 2014(published on 2015 April by Brazilian Institute of Geography and Statistics), the relative error is 2.37 %.

关键词： Brazil soybean area estimation Change rate of two years Official statistics of a year before Sampling change rate Soybeans sampling unit area estimation Sampling geography

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Aquatic Animal Disease Diagnosis System Based on Android

Aquatic Animal Disease Diagnosis System Based on Android

引用

the 9th international conference on Computer and computing Technologies in Agriculture (CCTA 2015)

作者： Min Sun Daoliang Li College of Information and Electrical Engineering China Agricultural University Key Laboratory of Agricultural Information Acquisition Technology Ministry of Agriculture

ISBN: (纸本)9783319483566

In recent years, as long as the rapid development of aquaculture, the occurrence of aquatic animal diseases increase year by year, which restrict the sustained, steady, and healthy development of aquaculture. So the rapid diagnosis of aquatic animal disease is particularly important for their prevention and control. In the present work, an Android-based aquatic animal disease diagnostic system has been developed in order to provide more convenient and effective aquatic animal disease diagnostic services to ordinary farmers. the designed system includes the part of the man-machine interface(user interface, expert interface), inference engine, the case base, knowledge base and so on. Interactive interface is a visual display interface. Inference engine was written in the Java programming language. Case base and knowledge base were created using SQLite. the results show that ordinary farmers can easily use this system to realize the convenient, fast, and accurate access to the findings of disease diagnosis and prevention measures as well as aquaculture expert can add, delete,modify, view the case base and knowledge base at any time.

关键词： Android Aquatic animals Disease diagnosis Methyltestosterone Androids Disease diagnosis aquatic animals Aquatic animal diseases Knowledge Bases Animal Diseases Case based prevention measures

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A Review on Optical Measurement Method of Chemical Oxygen Demand in Water Bodies

A Review on Optical Measurement Method of Chemical Oxygen De...

引用

the 9th international conference on Computer and computing Technologies in Agriculture (CCTA 2015)

作者： Fei Liu Peichao Zheng Baichuan Huang Xiande Zhao Leizi Jiao Daming Dong Key Laboratory of Optical Fiber Communication Technology Chongqing University of Posts and Telecommunications Beijing Research Center of Intelligent Equipment for Agriculture Beijing Academy of Agriculture and Forestry Sciences

ISBN: (纸本)9783319483566

Water quality monitoring technology based on optical method is the trend for modern water environmental monitoring. Compared with the traditional monitoring methods, Spectroscopy is a more simple, a small amount of reagent consumption, good repeatability, high accuracy and rapid detection of significant advantages, which is very suitable for rapid and on-line monitoring determination of environment water samples COD. this paper summarized the status and research progress of optical methods for monitoring of COD in *** basic principle of traditional analysis methods and optical methods for measuring COD in water were brief described, and compared to the characteristic of different waveband of the detection of COD. the principles and applications of spectroscopic methods commonly used spectral preprocessing methods and calibration methods were listed, and also introduced the progress of optical sensors. Finally, the future research focus and direction of spectroscopic methods were prospected.

关键词： Spectroscopic Water COD chemical oxygen demand COD Optical Methods Spectrography Optical variables measurement Oxygen demand water bodies

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A Review on Leaf Temperature Sensor:Measurement Methods and Application

A Review on Leaf Temperature Sensor:Measurement Methods and ...

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the 9th international conference on Computer and computing Technologies in Agriculture (CCTA 2015)

作者： Lu Yu Wenli Wang Xin Zhang Wengang Zheng Institute of Electronic and Informational Engineering Hebei University Beijing Research Center for Information Technology in Agriculture National Engineering Research Center for Information Technology in Agriculture

Leaf temperature is the guarantee for the plant to carry out the life activities and closely related to plants9; healthy growth and crops9; planting management. the accurate measurement of leaf temperature is si... 详细信息

ISBN: (纸本)9783319483566

Leaf temperature is the guarantee for the plant to carry out the life activities and closely related to plants' healthy growth and crops' planting management. the accurate measurement of leaf temperature is significant to understand the physiological condition, guide farmland irrigation, select variety and forecast production, etc. the development of plant leaf temperature measurement and requirements of application in recent years at home and abroad were briefly summarized and reviewed in the paper. Firstly, the status of application research and achievements of leaf temperature were introduced from the methods of measurement and scientific experiments. then it analyzed and compared the principle, advantages and disadvantages and measurement of several common methods in detail including thermal resistance measurement,thermocouple measurement, infrared temperature measurement, infrared thermal imaging measurement and the leaf temperature model. At last, some problems urgently needed to be solved and the development direction of the field were presented, which could provide a reference for the further study of the leaf temperature sensor.

关键词： Leaf temperature Sensor Infrared temperature measurement Infrared thermal imaging Leaf temperature model LEAF TEMPERATURES infrared temperature measurement Sensors thERMAL IMAGES Temperature Sensor Device Component

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Determination of Lead(Pb) Content in Vetiver Grass Roots by Raman Spectroscopy

Determination of Lead(Pb) Content in Vetiver Grass Roots by ...

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the 9th international conference on Computer and computing Technologies in Agriculture (CCTA 2015)

作者： Yande Liu Yuxiang Zhang Lixia Jiang Haiyang Wang College of Mechanical Engineering East China JiaoTong University

ISBN: (纸本)9783319483566

In order to provide references for heavy metals diagnosis of Vetiver grass, Raman spectroscopy technology was employed, the partial least squares(PLS) quantitative analysis model of heavy metal lead of Vetiver grass root was established, different processing methods were used to optimize the Raman spectra of Vetiver grass roots, Successive projection algorithm(SPA) was applied to screen the bands of Raman spectrum and enhance the model's accuracy. the best Raman spectroscopy quantitative analysis model of lead content in Vetiver grass root were set up, 20 unknown samples were used to test the quality of optimized model. the prediction correlation coefficient and the root mean square error were 0.607 and 0.040 g/kg, respectively.

关键词： Heavy metal Vetiver grass Raman spectroscopy Vetiveria zizanioides Raman spectrometry Heavy metals ANALYSIS MODELS Mean square error Lead content Caste determination Sex Determination Processes Polarized Raman spectra Resonance Raman spectra Lead

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Dynamic Analysis of Urban Landscape Patterns of Vegetation Coverage Based on Multi-temporal Landsat Dataset

Dynamic Analysis of Urban Landscape Patterns of Vegetation C...

引用

the 9th international conference on Computer and computing Technologies in Agriculture (CCTA 2015)

作者： Dong Liang Ling Teng Linsheng Huang Xinhua Xie Yan Zuo Jingling Zhao Key Laboratory of Intelligent Computing and Signal Processing Ministry of EducationAnhui University

ISBN: (纸本)9783319483566

Dynamic monitoring of vegetation coverage changes, especially on a relatively large temporal scale, have important practical significance in urban planning and environmental protection. the objective of this study is to dynamically investigate the urban landscape patterns of vegetation coverage based on remote sensing techniques. Multi-temporal Landsat images of 1990,2000 and 2013 were firstly used to produce three vegetation coverage maps of HefeiCity, AnhuiProvince, China with five grades using the NDVI(Normalized Difference Vegetation Index) dimidiate pixel model. Subsequently, a total of eight landscape pattern indictors in FRAGSTATS 4.2 were selected to analyze the dynamic characteristics of area, quantity and density for the study area with different vegetation coverage grades. the results showed that(1) the dominant vegetation coverage of 1990, 2000 and 2013 were the high vegetation coverage, the moderate vegetation coverage and the moderate-to-high vegetation coverage, respectively. the acreage of non-vegetation coverage increased by1.89 %, while the high vegetation coverage decreased by 10.48 % from 1990 to2013;(2) the quantity and density of patches decreased by 33.42 % and33.41 % during 1990–2013. Shannon's diversity index and Shannon's evenness index increased from 0.92 in 1990 to 0.97 in 2000, and then declined to 0.96 in2013;and(3) the contagion index had an upward trend and conversely the aggregation index showed no significant changes, but both of them were close to1 during 1990–2013. In comparison with natural in fluences, the primary driving forces causing the changes were ascribed to human factors including the rapid population growth and fast-growing urban areas.

关键词： Landscape pattern Vegetation coverage Normalized difference vegetation index (NDVI) Landsat Remote sensing Coverage Landsat satellites vegetation remote sensing Landscape Patterns Dynamic analysis urban landscape normalized difference vegetation index

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Study of Spatio-temporal Variation of Soil Nutrients in Paddy Rice Planting Farm

Study of Spatio-temporal Variation of Soil Nutrients in Padd...

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the 9th international conference on Computer and computing Technologies in Agriculture (CCTA 2015)

作者： Cong Wang Tianen Chen Jing Dong Shuwen Jiang Chao Li Beijing Research Center for Information Technology in Agriculture National Engineering Research Center for Information Technology in Agriculture Key Laboratory of Agri-Infomatics Ministry of Argiculture

ISBN: (纸本)9783319483535

It is signi ficant to analyze the spatial and temporal variation of soil nutrients for precision agriculture especially in large-scale farmsFor the data size of testing results is growing every time after sampling mostly by the frequency of once a year or several months, in order to discover the variation trends of speci fic nutrient which would be instructive for the fertilization in the *** this study, theories of GIS and geostatistics were used to characterize the spatial and temporal variability of soil nutrients in paddy rice fields in the Erdaohe farm of Heilongjiang Province, China, which located in the north of Daxing'an Mountains, has an area of nearly 36.1 million hectares for paddy rice plantingthe soil samples, collected from 2009 to 2013 once a year, were sampled based on the spatial distribution of paddy rice fields, counting as 651 in2009, 1488 in 2010, 954 in 2011, 483 in 2012, and 471 in 2013these samples were analyzed for p H, soil organic matter(SOM), available nitrogen(AN),available phosphorus(AP), and available potassium(AK)In this study, we calculated and compared the spatial and temporal variation in whole farm area,using methods of exploratory statistical and geostatistical analysisConclusion acquired is that from 2009 to 2013, the spatio-temporal variations decreased in soil p H, AN, AP, AK, and increased in SOMMoreover, according to the comparison of interpolation results, these five soil properties in Erdaohe farm remained not very stable in the past five years, which could implicate important signi ficance in future research for consideration of correlation amongst fertilization, rice yield and other factors especially in large-scale farms.

关键词： Spatio-temporal variation Soil nutrition Geostatistical analysis Semivariogram model soil nutrients rice fields geostatistical analysis temporal variations Farms data size properties of soils agricultural regions soil sampling

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