This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Machine Vision-Based High-resolution Weed Mapping and Patch-Sprayer Performance Simulation
Technical Paper
1999-01-2849
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
An experimental machine vision-based patch-sprayer was developed. This sprayer was primarily designed to do real-time weed density estimation and variable herbicide application rate control. However, the sprayer also had the capability to do high-resolution weed mapping if proper mapping techniques were integrated. Two weed mapping methods were developed. One was a GPS signal based off-line weed mapping; another one was radar distance measurement-based on-line weed mapping. The high-resolution weed maps provided evidence to further support the patch-spraying concept. Randomly sampled field images were processed with different nozzle control zone sizes and thresholding methods to simulate sprayer performance. Fundamental system design strategies regarding these two factors were obtained through simulation. System design techniques, including system construction, weed sensing and crop-row detection algorithms were reported.
Authors
Topic
Citation
Tang, L., Tian, L., and Steward, B., "Machine Vision-Based High-resolution Weed Mapping and Patch-Sprayer Performance Simulation," SAE Technical Paper 1999-01-2849, 1999, https://doi.org/10.4271/1999-01-2849.Also In
References
- Stafford, J.V. Miller P.C.H. 1993 Spatially selective application of herbicide to cereal crops Computers and Electronics in Agriculture 9 3 217 229
- Mortensen, D. A. Johnson G. A. Young L. Y. 1993 Weed distribution in agricultural fields Soil Specific Crop Management Roberts P. C. Rust R. H. Larson W. E. 113 124 Madison, WI ASA-CSSA-SSSA
- Wilson, B. J. Brain P. 1991 Long-term stability of distribution of Alopecurus myosuroides Huds. within cereal fields Weed Research 31 6 367 373
- Winkle, M.E. Leavitt J.R.C. Burnside O.C. 1981 Effect of weed density on herbicide absorption and bioactivity Weed Science 29 405 409
- Williams, M.M. II Gerhards R. Reichart S. Mortensen D.A. Martin, A.R. 1998 Weed seedling population responses to a method of site-specific weed management Proceedings of the Fourth International Conference on Precision Agriculture 123 132 St. Paul, MN ASA-CSSA-SSSA
- Paice, M. E. R. Miller P. C. H. Bodle J. D. 1995 An experimental sprayer for the spatially selective application of herbicides Journal of Agricultural Engineering Research 60 2 107 116
- Johnson, G. A. Cardina J. Mortensen D. A. 1997 Site-specific weed management: current and future directions The State of Site-specific Management in Agriculture Pierce F. J. Sadler E. J. 131 148 Madison, Wisc. ASA-CSSA-SSSA
- Woebbecke, D. M. Meyer G. E. Von Bargen K. Mortensen D. A. 1995 Color indices for weed identification under various soil, residue, and lighting conditions Transactions of ASAE 38 1 259 269
- Tian, L. Slaughter D.C. Norris R.F. 1997 Outdoor field machine vision identification of tomato seedlings for automated weed control Transactions of the ASAE 40 6 1761 1768
- Steward, B.L. Tian L. F. 1998 Real-time weed detection in outdoor field conditions Proc. SPIE 3543, Precision Agriculture and Biological Quality DeShazer J. A. Meyer G. E. 266 278 Bellingham, WA
- Han, S.F. 1992 A field information system for site-specific crop management Library of University of Illinois Urbana-Champaign, Urbana, IL
- Steward, B.L. 1999 Sensing and control for real-time machine vision-based selective herbicide application under outdoor field conditions Library of University of Illinois Urbana-Champaign, Urbana, IL
- Tang, L. Tian, L.F. Steward B.L. Reid J.F. 1999 Supervised color image segmentation by genetic algorithm for real-time weed sensing in outdoor lighting conditions
- Cardina, J. Johnson G. A. Sparrow D. H. 1997 The nature and consequence of weed spatial distribution Weed Science 45 364 373
- Davis, P. M. 1994 Statistics for describing populations Handbook of Sampling Methods for Arthropods in Agriculture Buntin G. D. Pedigo L. P. CRC Press Boca Raton, FL 38 40
- Paice, M. E. R. Miller P. C. H. Day W. 1996 Control requirements for spatially selective herbicide sprayers Computers and Electronics in Agriculture 14 2-3 163 177