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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 | 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 |
| 3 | 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 |
| 4 | 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 |
| 5 | 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 |
| 6 | Marcinkiewicz strong law for linear statistics显示文摘 | BAI Z D CHENG P R | 2000 | Statist Probab Lett2000，46，： | 1 |
| 7 | 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 |
| 8 | Changes in biologicelly-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，： | 1 |
| 9 | 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 |
| 10 | Graphene quantum dots combined with europium ions as photoluminescent probes for phosphate pensing显示文摘 | Bai J M Zhang L Liang R P | 2013 | Chemistry-A European Journal2013，19，12： | 1 |
| 11 | Allelopathy and exotic plant invasion: from moleeules and genes to species inleraetions显示文摘 | Bais H P Vepaehedu R Gilroy S | 2003 | Science2003，301，： | 1 |
| 12 | 7,8-benzoflavone:a phytotoxin from root exudates of invasive Russian knapweed显示文摘 | Stennltz F R Bais H P Foderam T A | 2003 | Phy- toehemistry2003，64，2： | 1 |
| 13 | Recycling of Cattle Dung,Biogas Plant-Effluent and Water Hyacinth in Vermicultre显示文摘 | Balasubramanian P R Kasturi Bai R | 1995 | Bioresource Technology1995，52，： | 1 |
| 14 | Allelopathy and exotic plant invasion : from molecules and genes to species interactions显示文摘 | Bais H P Vepachedu R Gilroy S | 2003 | Science2003，301，5638： | 1 |
| 15 | Biocontrol of Bacillus subtilis against infection of arabidopsis roots by Pseudomonas syringae is facilitated by biofilm formation and surfactin production 显示文摘 | BAIS H P FALL R VIVANCO J M | 2004 | Plant Physiology2004，134，： | 1 |
| 16 | Allelopathy and exotic plant invasion: From molecules and genes to species interac- tions 显示文摘 | Bais H P Vepachedu R Gilroy S | 2003 | Science2003，，301： | 1 |
| 17 | 7,8-nzoflavane:a phytotoxin from root exudates of invssive Russian knapwced显示文摘 | Stermits F R Bais H P Foderaro T A ct al | 2003 | Phy- tochemistry2003，04，2： | 1 |
| 18 | On detection of the number of signals in presence of white noise 显示文摘 | ZHAO L C KRISHNAIAH P R BAI Z D | 1986 | Journal of Multivariate Analysis1986，20，1： | 1 |
| 19 | Allelopathy and exotic plant invasion:from molecules and genes to species interactions显示文摘 | Bais H P Vepachedu R Gilroy S | 2003 | Science2003，301，5638： | 1 |
| 20 | Control of several crop disease with relined extracts from fermentation broth of the antagonistic actinomycete s-930-6显示文摘 | CHEN L(陈丽) AN D R(安德荣) BAI P(白萍) | 2004 | Pesticide(农药)2004，41，3： | 1 |
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