Leaf area index estimation model for UAV image hyperspectral data based on wavelength variable selection and machine learning methods (Record no. 64498)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03332nab|a22003977a|4500 |
| 001 - CONTROL NUMBER | |
| control field | 64498 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20230424211951.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 200910s2021||||xxk|||p|op||||00||0|eng|d |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER | |
| International Standard Serial Number | 1746-4811 |
| 024 8# - OTHER STANDARD IDENTIFIER | |
| Standard number or code | https://doi.org/10.1186/s13007-021-00750-5 |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | MX-TxCIM |
| 041 ## - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Juanjuan Zhang |
| 9 (RLIN) | 24663 |
| 245 10 - TITLE STATEMENT | |
| Title | Leaf area index estimation model for UAV image hyperspectral data based on wavelength variable selection and machine learning methods |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc. | London (United Kingdom) : |
| Name of publisher, distributor, etc. | BioMed Central, |
| Date of publication, distribution, etc. | 2021. |
| 500 ## - GENERAL NOTE | |
| General note | Peer review |
| 500 ## - GENERAL NOTE | |
| General note | Open Access |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Background: To accurately estimate winter wheat leaf area index (LAI) using unmanned aerial vehicle (UAV) hyperspectral imagery is crucial for crop growth monitoring, fertilization management, and development of precision agriculture. Methods: The UAV hyperspectral imaging data, Analytical Spectral Devices (ASD) data, and LAI were simultaneously obtained at main growth stages (jointing stage, booting stage, and filling stage) of various winter wheat varieties under various nitrogen fertilizer treatments. The characteristic bands related to LAI were extracted from UAV hyperspectral data with different algorithms including first derivative (FD), successive projections algorithm (SPA), competitive adaptive reweighed sampling (CARS), and competitive adaptive reweighed sampling combined with successive projections algorithm (CARS_SPA). Furthermore, three modeling machine learning methods including partial least squares regression (PLSR), support vector machine regression (SVR), and extreme gradient boosting (Xgboost) were used to build LAI estimation models. Results: The results show that the correlation coefficient between UAV and ASD hyperspectral data is greater than 0.99, indicating the UAV data can be used for estimation of wheat growth information. The LAI bands selected by using different algorithms were slightly different among the 15 models built in this study. The Xgboost model using nine consecutive characteristic bands selected by CARS_SPA algorithm as input was proved to have the best performance. This model yielded identical results of coefficient of determination (0.89) for both calibration set and validation set, indicating a high accuracy of this model. Conclusions: The Xgboost modeling method in combine with CARS_SPA algorithm can reduce input variables and improve the efficiency of model operation. The results provide reference and technical support for nondestructive and rapid estimation of winter wheat LAI by using UAV. |
| 546 ## - LANGUAGE NOTE | |
| Language note | Text in English |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 2104 |
| Topical term or geographic name as entry element | Winter wheat |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Leaf area index |
| Miscellaneous information | AGROVOC |
| 9 (RLIN) | 8953 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 11401 |
| Topical term or geographic name as entry element | Unmanned aerial vehicles |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 10231 |
| Topical term or geographic name as entry element | Imagery |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 11127 |
| Topical term or geographic name as entry element | Machine learning |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Source of heading or term | AGROVOC |
| 9 (RLIN) | 4859 |
| Topical term or geographic name as entry element | Models |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 24668 |
| Personal name | Tao Cheng |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 8202 |
| Personal name | Wei Guo |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 21876 |
| Personal name | Xin Xu |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 24669 |
| Personal name | Hongbo Qiao |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 24670 |
| Personal name | Yimin Xie |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| 9 (RLIN) | 14278 |
| Personal name | Xinming Ma |
| 773 0# - HOST ITEM ENTRY | |
| Title | Plant Methods |
| Related parts | v. 17, art. 49 |
| Place, publisher, and date of publication | London (United Kingdom) : BioMed Central, 2021. |
| International Standard Serial Number | 1471-2229 |
| Record control number | 57210 |
| 856 4# - ELECTRONIC LOCATION AND ACCESS | |
| Link text | Click here to access online |
| Uniform Resource Identifier | https://doi.org/10.1186/s13007-021-00750-5 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | Article |
| Suppress in OPAC | No |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Date last seen | Total Checkouts | Price effective from | Koha item type | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Collection code | Withdrawn status | Home library | Current library | Date acquired |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 11/04/2021 | 11/04/2021 | Article | Not Lost | Dewey Decimal Classification | Reprints Collection | CIMMYT Knowledge Center: John Woolston Library | CIMMYT Knowledge Center: John Woolston Library | 11/04/2021 |