| 摘要 |
<p>A multi-spectral imaging system (10) and method produces a vegetation image (78) for analysis of crop characteristics, such as nitrogen levels, from an area (12) having vegetation (14) and a non-vegetation (14) background. A light sensing unit (18) detects light reflected at multiple wavelengths. The image is segmented into images (70, 72, 74) at different wavelengths such as at the red, green, and near infrared wavelengths. The images are combined into a multi-spectral image (76) and segmented into a vegetation image by eliminating all non-vegetation images by using the images at two wavelengths. The vegetation image (78) is analyzed for nitrogen levels by calculating reflectance values at the green wavelength. The images may be stored for further analysis of crop characteristics.</p> |
