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69篇 您的检索式:作者名="Simon FR"
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1Global Wheat Head Detection(GWHD)Dataset:A Large and Diverse Dataset of High-Resolution RGB-Labelled Images to Develop and Benchmark Wheat Head Detection Methods显示文摘The detection of wheat heads in plant images is an important task for estimating pertinent wheat traits including head population density and head characteristics such as health,size,maturity stage,and the presence of awns.Several studies have developed methods for wheat head detection from high-resolution RGB imagery based on machine learning algorithms.However,these methods have generally been calibrated and validated on limited datasets.High variability in observational conditions,genotypic differences,development stages,and head orientation makes wheat head detection a challenge for computer vision.Further,possible blurring due to motion or wind and overlap between heads for dense populations make this task even more complex.Through a joint international collaborative effort,we have built a large,diverse,and well-labelled dataset of wheat images,called the Global Wheat Head Detection(GWHD)dataset.It contains 4700 high-resolution RGB images and 190000 labelled wheat heads collected from several countries around the world at different growth stages with a wide range of genotypes.Guidelines for image acquisition,associating minimum metadata to respect FAIR principles,and consistent head labelling methods are proposed when developing new head detection datasets.The GWHD dataset is publicly available at http://gffzzef49fa24bca249bbhvkkkxw50uw6q6pup.ffgz.tsg.suse.edu.cn/and aimed at developing and benchmarking methods for wheat head detection.Etienne David Simon Madec Pouria Sadeghi-Tehran Helge Aasen Bangyou Zheng Shouyang Liu Norbert Kirchgessner Goro Ishikawa Koichi Nagasawa Minhajul A.Badhon Curtis Pozniak Benoit de Solan Andreas Hund Scott C.Chapman Frédéric Baret Ian Stavness Wei Guo 2020Plant Phenomics2020,2,1:13
2High-Throughput Measurements of Stem Characteristics to Estimate Ear Density and Above-Ground Biomass显示文摘Total above-ground biomass at harvest and ear density are two important traits that characterize wheat genotypes.Two experiments were carried out in two different sites where several genotypes were grown under contrasted irrigation and nitrogen treatments.A high spatial resolution RGB camera was used to capture the residual stems standing straight after the cutting by the combine machine during harvest.It provided a ground spatial resolution better than 0.2 mm.A Faster Regional Convolutional Neural Network(Faster-RCNN)deep-learning model was first trained to identify the stems cross section.Results showed that the identification provided precision and recall close to 95%.Further,the balance between precision and recall allowed getting accurate estimates of the stem density with a relative RMSE close to 7%and robustness across the two experimental sites.The estimated stem density was also compared with the ear density measured in the field with traditional methods.A very high correlation was found with almost no bias,indicating that the stem density could be a good proxy of the ear density.The heritability/repeatability evaluated over 16 genotypes in one of the two experiments was slightly higher(80%)than that of the ear density(78%).The diameter of each stem was computed from the profile of gray values in the extracts of the stem cross section.Results show that the stem diameters follow a gamma distribution over eachmicroplot with an average diameter close to 2.0mm.Finally,the biovolume computed as the product of the average stem diameter,the stem density,and plant height is closely related to the above-ground biomass at harvest with a relative RMSE of 6%.Possible limitations of the findings and future applications are finally discussed.Xiuliang Jin Simon Madec Dan Dutartre Benoit de Solan Alexis Comar Frédéric Baret 2019Plant Phenomics2019,1,1:5
3Lymphoproliferative disorders in patients receiving thiopurines for inflammatory bowel disease: a prospective observational cohort study显示文摘Laurent Beaugerie Nicole Brousse Anne Marie Bouvier Jean Frédéric Colombel Marc Lémann Jacques Cosnes Xavier Hébuterne Antoine Cortot Yoram Bouhnik Jean Pierre Gendre Tabassome Simon Marc Maynadié Olivier Hermine Jean Faivre Fabrice Carrat 2009The Lancet . 2009 (9701)2009,,:4
4Inheritance patterns of secondary symbionts during sexual reproduction of pea aphid biotypes显示文摘食草的昆虫经常怀有影响他们的生态学和进化的细菌的共生者。蚜虫招待应尽的 endosymbiont Buchnera,它为复制被要求,和其频率越过蚜虫人口变化的容许的共生者。这些似母亲播送了第二等的共生者特别地在豌豆蚜虫被学习了, Acyrthosiphon pisum,哪个港口穿上环境地依赖的效果的至少 8 不同细菌的种类(不数的 Buchnera ) 主人健康。特别地,这些共生者种类与豌豆蚜虫人口在特定的植物上喂被联系。尽管他们是继承的似母亲,这些细菌偶尔越过昆虫系被转移。如此的 nonmaternal 转移的一机制在性复制期间是到子孙的父亲的传播。迄今为止,第二等的共生者的传播在仅仅蚜虫系和 3 共生者种类的一把在蚜虫的性复制期间被调查了。更好描绘这个过程,我们通过包含属于 9 专业化主人的遗传因子型,和 117 个十字的 49 克隆的一个交叉实验在豌豆蚜虫的性复制期间调查了 7 共生者种类的继承模式。在子孙的共生者种类在从鸡蛋并且在以后的单性生殖的代孵化的 fundatrix 阶段与诊断质的 PCR 被检测。我们没发现共生者的父亲的传播的证实的案例到子孙,并且我们观察到特别共生者种(Serratia symbiotica ) 的母亲的传播是相当低效的。我们在尊重讨论这些观察到豌豆蚜虫的生态学。Jean Peccoud Joêl Bonhomme Frédérique Mahéo Manon de la Huerta Olivier Cosson Jean-Christophe Simon 2014Insect Science2014,21,3:4
5Increased Risk for Nonmelanoma Skin Cancers in Patients Who Receive Thiopurines for Inflammatory Bowel Disease显示文摘Laurent Peyrin–Biroulet Kiarash Khosrotehrani Fabrice Carrat Anne–Marie Bouvier Jean–Baptiste Chevaux Tabassome Simon Frank Carbonnel Jean–Frédéric Colombel Jean–Louis Dupas Philippe Godeberge Jean–Pierre Hugot Marc Lémann Stéphane Nahon Jean–Marc Sabaté 2011Gastroenterology2011,,5:3
6Global Wheat Head Detection 2021:An Improved Dataset for Benchmarking Wheat Head Detection Methods显示文摘The Global Wheat Head Detection(GWHD)dataset was created in 2020 and has assembled 193,634 labelled wheat heads from 4700 RGB images acquired from various acquisition platforms and 7 countries/institutions.With an associated competition hosted in Kaggle,GWHD_2020 has successfully attracted attention from both the computer vision and agricultural science communities.From this first experience,a few avenues for improvements have been identified regarding data size,head diversity,and label reliability.To address these issues,the 2020 dataset has been reexamined,relabeled,and complemented by adding 1722 images from 5 additional countries,allowing for 81,553 additional wheat heads.We now release in 2021 a new version of the Global Wheat Head Detection dataset,which is bigger,more diverse,and less noisy than the GWHD_2020 version.Etienne David Mario Serouart Daniel Smith Simon Madec Kaaviya Velumani Shouyang Liu Xu Wang Francisco Pinto Shahameh Shafiee Izzat SATahir Hisashi Tsujimoto Shuhei Nasuda Bangyou Zheng Norbert Kirchgessner Helge Aasen Andreas Hund Pouria Sadhegi-Tehran Koichi Nagasawa Goro Ishikawa Sébastien Dandrifosse Alexis Carlier Benjamin Dumont Benoit Mercatoris Byron Evers Ken Kuroki Haozhou Wang Masanori Ishii Minhajul ABadhon Curtis Pozniak David Shaner LeBauer Morten Lillemo Jesse Poland Scott Chapman Benoit de Solan Frédéric Baret Ian Stavness Wei Guo 2021Plant Phenomics2021,3,1:2
7Reversal of ethinylestradiol -induced bile secretory failure with Triton WR-1339显示文摘 Gonzalez M Suutherland E 1980J clin Invest1980,65,:1
8Long-term cycling behavior of asymmetric activated carbon/MnO 2 aqueous electrochemical supercapacitor显示文摘Thierry Brousse Pierre-Louis Taberna Olivier Crosnier Romain Dugas Philippe Guillemet Yves Scudeller Yingke Zhou Frédéric Favier Daniel Bélanger Patrice Simon 2007Journal of Power Sources2007,,1:1
9Estrogens in intrahepatic cholestasis of pregnancy显示文摘Leslie KK Reznikov L Simon FR 2000Obstet Gynecol2000,95,3:1
10Clinical Phase I study with an Insulin-like Growth Factor-1 Receptor Inhibitor: Experiences in patients with squamous non-small cell lung carcinoma显示文摘Simon Ekman Jan-Erik Fr? din Johan Harmenberg Antonina Bergman ? sa Hedlund Pia Dahg Carina Alvfors Birgitta St? hl Stefan Bergstr? m Michael Bergqvist 2011Acta Oncologica2011,,3:1
11Estrogens in intrahepatic cholestasis of pregnancy显示文摘Leslie KK Reznikov L Simon FR 2000Obstet Gynecol2000,96,:1
12Long-term cycling behavior of asymmetric activated carbon/MnO 2 aqueous electrochemical supercapacitor显示文摘Thierry Brousse Pierre-Louis Taberna Olivier Crosnier Romain Dugas Philippe Guillemet Yves Scudeller Yingke Zhou Frédéric Favier Daniel Bélanger Patrice Simon 2007Journal of Power Sources2007,,1:1
13Estrogen in intrahepatic cholestasis of pregnancy 显示文摘Lesle KK Reznikov L Simon FR 2000Obstet Gynecol2000,95,:1
14Intrahepatic cholestasis of pregnancy: an estrogen-related disease 显示文摘Reyes H Simon FR 1993Semin Liver Dis1993,13,3:1
15Intrahepatic cholestasis of pregnancy:an estrogen-related disease显示文摘Reyes H Simon FR 1993Semin Liven Dis1993,13,3:1
16Intrahepatic choleslasis of pregnancy:an estrogen-related disease显示文摘Reyes H Simon FR 1993Semin Liver Dis1993,13,:1
17Intrahepatic cholestasis of pregnancy:An estrogen-related disease显示文摘Reyes H Simon FR 1993Semin Liver Dis1993,13,4:1
18Lymphoproliferative disorders in patients receiving thiopurines for inflammatory bowel disease: a prospective observational cohort study显示文摘Laurent Beaugerie Nicole Brousse Anne Marie Bouvier Jean Frédéric Colombel Marc Lémann Jacques Cosnes Xavier Hébuterne Antoine Cortot Yoram Bouhnik Jean Pierre Gendre Tabassome Simon Marc Maynadié Olivier Hermine Jean Faivre Fabrice Carrat 2009The Lancet2009,,9701:1
19Estrogens in intrahepatic cholestasis of pregnancy显示文摘 Reznikov L Simon FR 2000Gynecol2000,95,:1
20Estrogensin in intrahepatic cholestasis of pregnancy显示文摘Leslie KK Reznikov L Simon FR 2000Obstet Gynecol2000,95,3:1
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