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中文期刊(566296)
外文期刊(50)
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专利(42595)

期刊名称

agriculture-basel(10)
sensors(8)
biosystems engineering(5)
computers and electronics in agriculture(5)
animals(3)
applied sciences-basel(3)
scientific reports(3)
expert systems with applications(2)
international journal of agricultural and biological engineering(2)
acs omega(1)

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关键词

3d reconstruction; 3d point cloud; hole filling; pig body size measurement; pig weight estimation(1)
3d reconstruction; stressless body dimension measurement; visual weight estimation; precision livestock farming(1)
adsorption; antioxidant; erigeron breviscapus; extraction; macroporous resin; total flavonoids(1)
airborne bacteria; a-band ultraviolet; decay rate; dynamic inactive rate; laboratory simulation(1)
animals; skeleton; joints; data models; predictive models; feature extraction; computational modeling; measurement; accuracy; three-dimensional displays; animal skeletons; keypoint detection; animal pose estimation; feature extraction(1)
autonomous inspection robot; dead hen detection; real-time monitoring; deep learning(1)
beef cattle point cloud; principal direction calibration; region segmentation; tomographic slice(1)
beef cattle point cloud; region segmentation; body dimension calculation; slice feature; non-contact measurement(1)
behavior monitoring; contact sensing; algorithms; tiny machine learning; monitoring applications(1)
chicken head detection; laying hen counting; caged henhouse health inspection; visible light and thermal infrared image alignment; deep learning(1)

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Li, Qifeng(0)

机构

beijing acad agr & forestry sci, informat technol res ctr, beijing 100097, peoples r china(25)
natl innovat ctr digital technol anim husb, beijing 100097, peoples r china(17)
beijing acad agr & forestry sci, res ctr informat technol, beijing 100097, peoples r china(13)
natl engn res ctr informat technol agr, beijing 100097, peoples r china(13)
univ guelph, sch engn, adv robot & intelligent syst lab, guelph, on n1g 2w1, canada(7)
china agr univ, coll informat & elect engn, beijing 100083, peoples r china(6)
northwest a&f univ, coll informat engn, yangling 712100, peoples r china(6)
tianjin agr univ, coll comp & informat engn, tianjin 300384, peoples r china(6)
china agr univ, coll water resources & civil engn, dept agr struct & bioenvironm engn, beijing 100083, peoples r china(5)
natl engn res ctr informat technol agr nercita, beijing 100097, peoples r china(5)

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科研产出

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资源类型: 外文期刊

作者:Li, Qifeng(精确检索)

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1Salient Regions and Hierarchical Indexing for Crop Disease Images

作者： Li, Qifeng; SCI

机构： Beijing Acad Agr & Forestry Sci, Beijing Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China; Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China; Minist Agr, Key Lab Informat Technol Agr, Beijing 100097, Peoples R China; Beijing Engn Res Ctr Agr Internet Things, Beijing 100097, Peoples R China;

来源：INTERNATIONAL JOURNAL OF PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE

关键词： Salient regions; dynamic weight; hierarchical indexing; clustering; similarity search

年份：2022

2A Clean and Health-Care-Focused Way to Reduce Indoor Airborne Bacteria in Calf House with Long-Wave Ultraviolet

作者： Ding, Luyu; Yao, Chunxia; Li, Qifeng; Ding, Luyu; Yao, Chunxia; Li, Qifeng; Ding, Luyu; Yao, Chunxia; Li, Qifeng; Zhang, Qing; Wang, Chaoyuan; Shan, Feifei; SCI

机构： Beijing Acad Agr & Forestry Sci, Informat Technol Res Ctr, Beijing 100097, Peoples R China; Natl Engn Res Ctr Informat Technol Agr NERCITA, Beijing 100097, Peoples R China; Natl Innovat Ctr Digital Technol Anim Husb, Beijing 100097, Peoples R China; China Agr Univ, Coll Water Resources & Civil Engn, Dept Agr Struct & Bioenvironm Engn, Beijing 100083, Peoples R China; Beijing Acad Agr & Forestry Sci, Intelligent Equipment Res Ctr, Beijing 100097, Peoples R China;

来源：MICROORGANISMS

关键词： closed calf house; emission rate; size distribution; microbial composition; health improvement

年份：2024

3Determination of the mass transfer coefficient of ammonia emissions from dairy open lots using a scale model

作者： Ding, Luyu; Li, Qifeng; Jiang, Ruixiang; Yu, Ligen; Zheng, Wengang; Gao, Ronghua; Ma, Weihong; Zhang, Shirui; Ding, Luyu; Li, Qifeng; Jiang, Ruixiang; Yu, Ligen; Gao, Ronghua; Ma, Weihong; Wang, Chaoyuan; Shi, Zhengxiang; Wang, Chaoyuan; Shi, Zhengxiang; Zhang, Guoqiang; Zheng, Wengang; Zhang, Shirui; SCI

机构： Beijing Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China; Beijing Acad Agr & Forestry Sci, NERCITA, Beijing 100097, Peoples R China; China Agr Univ, Coll Water Resources & Civil Engn, Dept Agr Struct & Bioenvironm Engn, Beijing 100083, Peoples R China; Minist Agr, Key Lab Agr Engn Struct & Environm, Beijing 100083, Peoples R China; Aarhus Univ, Dept Engn, DK-8830 Tjele, Denmark; Beijing Res Ctr Intelligent Equipment Agr, Beijing 100097, Peoples R China;

来源：BIOSYSTEMS ENGINEERING

关键词： Two-film theory; Surface velocity; Vapour pressure deficit; Modelling

年份：2020

4Extraction of key regions of beef cattle based on bidirectional tomographic slice features from point cloud data

作者： Li, Jiawei; Li, Jiawei; Ma, Weihong; Zhao, Chunjiang; Li, Qifeng; Ding, Luyu; Gao, Ronghua; Yu, Ligen; Tulpan, Dan; Yang, Simon X.; Wang, Zhiquan; SCI

机构： China Agr Univ, Coll Informat & Elect Engn, Beijing, Peoples R China; Beijing Acad Agr & Forestry Sci, Res Ctr Informat Technol, Beijing, Peoples R China; Univ Guelph, Guelph, ON, Canada; Univ Alberta, Edmonton, AB, Canada;

来源：COMPUTERS AND ELECTRONICS IN AGRICULTURE

关键词： Beef cattle point cloud; Principal direction calibration; Region Segmentation; Tomographic slice

年份：2022

5Oestrus detection in dairy cows by using atrous spatial pyramid and attention mechanism

作者： Wang, Rong; Bai, Qiang; Zhao, Chunjiang; Li, Shuqin; Zhang, Hongming; Wang, Rong; Bai, Qiang; Gao, Ronghua; Li, Qifeng; Zhao, Chunjiang; Wang, Rong; Bai, Qiang; Gao, Ronghua; Li, Qifeng; Zhao, Chunjiang; SCI

机构： Northwest A&F Univ, Coll Informat Engn, Yangling 712100, Peoples R China; Beijing Acad Agr & Forestry Sci, Res Ctr Informat Technol, Beijing 100097, Peoples R China; Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China;

来源：BIOSYSTEMS ENGINEERING

关键词： Dairy cows oestrus; Mounting detection; YOLOv5; Multiscale optimisation; Loss function optimisation

年份：2022

6An FPGA implementation of Bayesian inference with spiking neural networks

作者： Li, Haoran; An, Lingling; Wan, Bo; An, Lingling; Wan, Bo; Fang, Ying; Fang, Ying; Li, Qifeng; Liu, Jian K.; SCI

机构： Xidian Univ, Guangzhou Inst Technol, Guangzhou, Peoples R China; Xidian Univ, Sch Comp Sci & Technol, Xian, Peoples R China; Key Lab Smart Human Comp Interact & Wearable Techn, Xian, Peoples R China; Fujian Normal Univ, Coll Comp & Cyber Secur, Fuzhou, Peoples R China; Fujian Normal Univ, Digital Fujian Internet Of Thing Lab Environm Moni, Fuzhou, Peoples R China; Beijing Acad Agr & Forestry Sci, Res Ctr Informat Technol, Natl Engn Res Ctr Informat Technol Agr, Beijing, Peoples R China; Univ Birmingham, Sch Comp Sci, Birmingham, England;

来源：FRONTIERS IN NEUROSCIENCE

关键词： spiking neural networks; probabilistic graphical models; Bayesian inference; importance sampling; FPGA

年份：2024

7A Point Cloud Segmentation Method for Pigs from Complex Point Cloud Environments Based on the Improved PointNet++

作者： Chang, Kaixuan; Xu, Xingmei; Li, Qifeng; Ma, Weihong; Xue, Xianglong; Xu, Zhankang; Li, Mingyu; Guo, Yuhang; Meng, Rui; Li, Qifeng; Ma, Weihong; Qi, Xiangyu; Xue, Xianglong; Li, Mingyu; Guo, Yuhang; Meng, Rui; Li, Qifeng; Ma, Weihong; Xue, Xianglong; Li, Mingyu; Guo, Yuhang; Meng, Rui; Li, Qifeng; Xu, Zhankang; SCI

机构： Jilin Agr Univ, Coll Informat & Technol, Changchun 130118, Peoples R China; Beijing Acad Agr & Forestry Sci, Informat Technol Res Ctr, Beijing 100097, Peoples R China; Natl Innovat Ctr Digital Technol Anim Husb, Beijing 100097, Peoples R China; Natl Innovat Ctr Digital Seed Ind, Beijing 100097, Peoples R China; China Agr Univ, Coll Informat & Elect Engn, Beijing 100083, Peoples R China;

来源：AGRICULTURE-BASEL

关键词： point cloud segmentation; PointNet++; 3D point cloud processing; SoftPool

年份：2024

8An ultra-lightweight method for individual identification of cow-back pattern images in an open image set

作者： Wang, Rong; Gao, Ronghua; Li, Qifeng; Zhao, Chunjiang; Ding, Luyu; Yu, Ligen; Ma, Weihong; Wang, Rong; Zhao, Chunjiang; Gao, Ronghua; Li, Qifeng; Zhao, Chunjiang; Ding, Luyu; Yu, Ligen; Ma, Weihong; Ru, Lin; SCI

机构： Beijing Acad Agr & Forestry Sci, Informat Technol Res Ctr, Beijing 100097, Peoples R China; Northwest A&F Univ, Coll Informat Engn, Yangling 712100, Peoples R China; Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China; Heilongjiang Bayi Agr Univ, Coll Civil Engn & Water Conservancy, Daqing 163319, Peoples R China;

来源：EXPERT SYSTEMS WITH APPLICATIONS

关键词： Cow-back pattern; Cow recognition; LightCowsNet; Open image set; Deep learning

年份：2024

9Distribution Characteristics and Factors Influencing Culturable Bacterial Bioaerosols on a Dairy Farm in Northern China

作者： Ru, Lin; Deng, Shuhui; Ding, Luyu; Li, Qifeng; Wang, Rong; Li, Jiawei; Yao, Chunxia; Ding, Luyu; Li, Qifeng; Wang, Rong; Li, Jiawei; Yao, Chunxia; Ding, Luyu; Li, Qifeng; Yao, Chunxia; Zhao, Wanying; Lu, Yujian; SCI

机构： Heilongjiang Bayi Agr Univ, Coll Civil Engn & Water Conservancy, Daqing 163319, Peoples R China; Beijing Acad Agr & Forestry Sci, Informat Technol Res Ctr, Beijing 100097, Peoples R China; Natl Engn Res Ctr Informat Technol Agr Beijing, Beijing 100097, Peoples R China; Natl Innovat Ctr Digital Technol Anim Husb, Beijing 100097, Peoples R China; China Rural Technol Dev Ctr, Beijing 100032, Peoples R China; China Agr Univ, Coll Water Resources & Civil Engn, Beijing 100083, Peoples R China;

来源：AGRICULTURE-BASEL

关键词： culturable bacterial bioaerosol; farm scale; horizontal distribution; vertical distribution; environmental factors; sensitivity analysis

年份：2023

10Study on a Pig Vocalization Classification Method Based on Multi-Feature Fusion

作者： Hou, Yuting; Li, Qifeng; Li, Haiyan; Ren, Zhiyu; Guo, Xiaoli; Yang, Gan; Liu, Yu; Yu, Ligen; Hou, Yuting; Wang, Zuchao; Li, Qifeng; Liu, Yu; Yu, Ligen; Liu, Tonghai; He, Yuxiang; SCI

机构： Beijing Acad Agr & Forestry Sci, Res Ctr Informat Technol, Beijing 100097, Peoples R China; China Univ Geosci Beijing, Sch Sci, Beijing 100083, Peoples R China; Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China; Tianjin Agr Univ, Coll Comp & Informat Engn, Tianjin 300384, Peoples R China;

来源：SENSORS

关键词： pig vocalization; multi-feature fusion; principal component analysis; classification recognition

年份：2024