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| 1 | The Machine Recognition for Population Feature of Wheat Images Based on BP Neural Network显示文摘Recognition and analysis of dynamic information about population images during wheat growth periods can be taken for the base of quantitative diagnosis for wheat growth. A recognition system based on self-learning BP neural network for feature data of wheat population images, such as total green areas and leaves areas was designed in this paper. In addition, some techniques to create favorable conditions for image recognition was discussed, which were as follows: (1) The method of collecting images by a digital camera and assistant equipment under natural conditions in fields. (2) An algorithm of pixei labeling was used to segment image and extract feature. (3)A high pass filter based on Laplacian was used to strengthen image information. The results showed that the ANN system was availability for image recognition of wheat population feature. | LI Shao-kun, SUO Xing-mei, BAI Zhong-ying, QI Zhi-li, Liu Xiao-hong, GAO Shi-ju and ZHAO Shuang-ning( Institute of Crop Breeding and Cultivation /Key Laboratory of Crop Genetic & Breeding, Ministry of Agriculture, ChineseAcademy of Agricultural Sciences, Beijing 100081 , P . R . China Department of Computer Science and Technology, CentralUniversity for Nationalities, Beijing 100081 , P. R . China School of Computer Science and Technology, Beijing Universityof Posts and Telecommunications, Beijing 100876, P. R . China Research Center of Xinjiang Crop High-yield,Shihezi University, Shihezi 832003, P.R. China) | 2002 | Agricultural Sciences in China2002，1，8： | 4 |
| 2 | Studies on biosorption of chromium (VI) by dead fungal biomass显示文摘 | Bai S R Abraham T E | 1998 | J Sci Ind Res India1998，57，： | 1 |
| 3 | Factors influencing tissue reponses of mature seeds and immature embryos in turf-type tall fescue显示文摘 | Bai Y Qu R | 2001 | Plant Breeding2001，120，2： | 1 |
| 4 | Characteristics of gas-solids fluidizad beds in different flow regimes显示文摘 | Bai D Issangya Y S Grace J R | 1999 | Industrial Engineering Chemistry Research1999，38，： | 1 |
| 5 | AlleloPathy and exotic plant invasion: from molecules and genes to species interactions显示文摘 | Bais H P Vepachedu R Gilroy S | 2003 | Science2003，，301： | 1 |
| 6 | Callus induction and culture of Dioscorea zingiberenwsis 显示文摘 | Ren J W Bai Y Zhang R C | 1993 | China J Chin Mater Med1993，28，9： | 1 |
| 7 | Membrane fouling and cleaning in microfiltration of activated sludge wastewater显示文摘 | Lim A L Bai R | 2003 | J Membr Sci2003，216，： | 1 |
| 8 | Allelopathy and exotic plant invasion, from molecules and genes to species interactions显示文摘 | BAIS H P VEPACHEDU R GILROY S | 2003 | Science2003，301，： | 1 |
| 9 | Comprehensive scanning of somatic mitoehondrial DNA mutations in breast cancer 显示文摘 | Tan D J Bai R K Wang L J C | 2002 | Cancer Res2002，62，4： | 1 |
| 10 | Bending moment ca- pacity of pipes 显示文摘 | SOREN R HAUCH YONG Bai | 2000 | Journal of Offshore Mechanics and Arctic Engineering2000，122，： | 1 |
| 11 | Pulmonary responses to printer toner particles in mice after intratracheal instilla- tion 显示文摘 | Bai R Zhang L Lin Y | 2010 | Toxicology Letters2010，199，3： | 1 |
| 12 | Functionalization of adsorbent with different aliphatic polyamines for heavy metal ion removal: characteristics and performance显示文摘 | Liu C Bai R Hong L Liu T | 2010 | J Colloid lnterface Sci2010，345，2： | 1 |
| 13 | Highly hydrophilic and low protein fouling polypropylene membrane prepared by surface modification with sulfobetaine-based zwitterionic polymer through a combined surface polymerization method显示文摘 | Zhao Y Wee K H Bai R | | 0，，： | 1 |
| 14 | Changes in biologically-active ultraviolet radiation reaching the Earth's surface 显示文摘 | McKenzie R L Aucamp P J Bais A F | 2007 | Photochemical and Photobiological Sciences2007，6，3： | 1 |
| 15 | The role of nitric oxide in the regulation of aldosterone synthesis by adrenal glomerulosa cells显示文摘 | Natarajan R Lanting L Bai W | 1997 | The Journal of Steroid Biochemistry and Molecular Biology1997，61，12： | 1 |
| 16 | Allelopathy and exotic plants invasion: from molecules and genes to species interactions显示文摘 | Bais H P Vepachedu R Gilroy S | 2003 | Science2003，301，5： | 1 |
| 17 | Study of high- coercivity sintered NdFeB magnets 显示文摘 | Bai G Gao R W Sun Y Han G B Wang B | 2007 | Journal of Magnetism and Magnetic Materials2007，308，1： | 1 |
| 18 | Generating Capacity Adequacy Asso- ciated With Wind Energy 显示文摘 | BILLINTON R BAI G | 2004 | IEEE transactions on Energy Conversion2004，19，3： | 1 |
| 19 | Numerical simulation of chemical vapor infiltration of propylene into C/C composites with reduced multi-step kinetic models显示文摘 | Li H J Li A J Bai R C | 2005 | Carbon2005，43，： | 1 |
| 20 | Marcinkiewicz strong law for linear statistics显示文摘 | BAI Z D CHENG P R | 2000 | Statist Probab Lett2000，46，： | 1 |
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