Smart weed recognition/classification system
US5606821A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1994 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Jul 25, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01M7/0089
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A smart weed recognition and identification system comprises a chlorophyll sensor for detecting green vegetation and memory map means for storing images which contain different forms of green vegetation. The memory maps stored in memory are processed to eliminate the background information and leave a memory map containing only green vegetation. The enhanced memory map is further processed by an operation of segmentation into identifiable regions and the identifiable green vegetation regions are processed to identify unique attributes for each of the regions. The unique attributes for each of the regions is stored in a reference data base library and are used as reference data for comparing other green vegetation with the data stored in the base model by a processor which matches green vegetation in other regions with the green vegetation stored in said reference data base model and further produces decision data signals which are used by a controller to control a plurality of spray nozzles covering the area sensed and for dispensing a plurality of selectable controlled chemicals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.