نتایج جستجو برای: rice classification

تعداد نتایج: 562660  

Journal: :Remote Sensing 2014
Andrew Nelson Tri Setiyono Arnel B. Rala Emma D. Quicho Jeny V. Raviz Prosperidad J. Abonete Aileen A. Maunahan Cornelia A. Garcia Hannah Zarah M. Bhatti Lorena S. Villano Pongmanee Thongbai Francesco Holecz Massimo Barbieri Francesco Collivignarelli Luca Gatti Eduardo Jimmy P. Quilang Mary Rose O. Mabalay Pristine E. Mabalot Mabel I. Barroga Alfie P. Bacong Norlyn T. Detoito Glorie Belle Berja Frenciso Varquez Wahyunto Dwi Kuntjoro Sri Retno Murdiyati Sellaperumal Pazhanivelan Pandian Kannan Petchimuthu Christy Nirmala Mary Elangovan Subramanian Preesan Rakwatin Amornrat Intrman Thana Setapayak Sommai Lertna Vo Quang Minh Vo Quoc Tuan Trinh Hoang Duong Nguyen Huu Quyen Duong Van Kham Sarith Hin Touch Veasna Manoj Yadav Chharom Chin Nguyen Hong Ninh

Rice is the most important food security crop in Asia. Information on its seasonal extent forms part of the national accounting of many Asian countries. Synthetic Aperture Radar (SAR) imagery is highly suitable for detecting lowland rice, especially in tropical and subtropical regions, where pervasive cloud cover in the rainy seasons precludes the use of optical imagery. Here, we present a simp...

2007
Y. H. Tseng P. H. Hsu

A technology for automatic recognition of rice fields by using multitemporal satellite images is proposed. The principle of this technology is applying a region-based classification by means of integrating geographical data and domain knowledge with multitemporal Images. Based on the principle, three methods of investigating the temporal NDVI profile to detect rice fields were implemented. They...

2012
S. J. MousaviRad K. Mollazade

In this paper, an algorithm for identifying five different varieties of rice, using the morphological features is presented. The proposed algorithm consists of several steps: image acquisition, segmentation, feature extraction, feature selection, and classification. Eighteen morphological features were extracted from rice kernels. The Set of features contained redundant, noisy or even irrelevan...

2015
Mohammed Nuruzzaman Akhter M. Sharoni Kouji Satoh Mohammad Rezaul Karim Jennifer A. Harikrishna Takumi Shimizu Takahide Sasaya Toshihiro Omura Mohammad A. Haque Sayed M. Z. Hasan Aziz Ahmad Shoshi Kikuchi

Expression levels of the NAC gene family were studied in rice infected with Rice dwarf virus (RDV), Rice black-streaked dwarf virus (RBSDV), Rice grassy stunt virus (RGSV), Rice ragged stunt virus (RRSV), and Rice transitory yellowing virus (RTYV). Microarray analysis showed that 75 (68%) OsNAC genes were differentially regulated during infection with RDV, RBSDV, RGSV, and RRSV compared with th...

Journal: :ecopersia 2013
juan francisco sánchez-moreno abbas farshad petter pilesjö

around 80% of the population relies on agriculture, rice being the staple food. topography urges farmers to cultivate upland rice. the chinese interest in rubber latex has stimulated farmers to grow rubber, although the technical knowledge regarding tree management and latex processing is poor. a study was conducted in an area in luang prabang province to examine the suitability of upland rice ...

2004
Kaivan Munshi

Information flows are weaker in a heterogeneous population when the performance of a new technology is sensitive to unobserved individual characteristics, preventing individuals from learning from neighbors’ experiences. This characterization of social learning is tested with wheat and rice data from the Indian Green Revolution. The rice-growing regions display greater heterogeneity in growing ...

2014
Sheetal Mahajan Sukhvir Kaur

Quality of rice is defined from its physical and chemical characteristics. Quality of grains is required for protecting the consumers from substandard products because the samples of food materials are subjected to adulteration. This paper provides a solution to the problem of the rice industry for quality analysis. Computer Vision based Inspection provides one alternative for fast, accurate, c...

2011
Zhanyu Liu Jia-an Cheng Wenjiang Huang Cunjun Li Xingang Xu Xiaodong Ding Jingjing Shi Bin Zhou

Detecting plant health condition plays an important role in controlling disease and insect pest stresses in agricultural crops. In this study, we applied support vector classification machine (SVC) and principal components analysis (PCA) techniques for discriminating and classifying the normal and stressed paddy rice (Oryza sativa L.) leaves caused by rice leaf folder (Cnaphalocrocis medinalis ...

2015
Renu Sharma Raj Kumar Tanuja Srivastava D. C. Saxena

Rice flour, corn flour and deoiled rice bran blends were used to prepare ready-to-eat extrudates

Journal: :International journal of remote sensing 2004
M A Diuk-Wasser M Bagayoko N Sogoba G Dolo M B Touré S F Traoré C E Taylor

The aim of this study was to determine whether remotely sensed data could be used to identify rice-related malaria vector breeding habitats in an irrigated rice growing area near Niono, Mali. Early stages of rice growth show peak larval production, but Landsat sensor data are often obstructed by clouds during the early part of the cropping cycle (rainy season). In this study, we examined whethe...

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