DESIGN OF ACQUIRING AND PROCESSING PLATFORM OF NEAR-GROUND REMOTE SENSING IMAGES WITH TWO-CHANNEL
An acquiring platform of near-ground remote sensing images is developed to collect visible image and NIR image synchronously and then get the reflectance information form crop images. The platform contains: a 2-CCD multi-spectral camera, two collecting boxes, a field computer with two gigabit net interfaces and an image processing system. First, a true color image of field crops is processed with 2G-R-B gray and Median Filtering Algorithm, and OTSU is used to separate plants from ground. Then the binary image is returned back to original R gray image and the average gray value of R image is acquired. Finally, using linear module between reflectance and gray value the reflectance of crop in red waveband can be caculated. Test results show that the acquiring platform works well and there exists remarkable correlation between results by above image processing method and that of ASD spectrometer, and it provides theoretical basis for crop status monitoring with digital image processing.
multi-spectral camera near-ground remote sensing image segment reflectance eztraction
Zhao Ruijiao Li Minzan
Key Laboratory of Modern Precision Agriculture System Integration Research,Ministry of Education,Chi Key Laboratory of Modern Precision Agriculture System Integration Research,Ministry of Education,Chi
国际会议
北京
英文
1-6
2009-10-14（万方平台首次上网日期，不代表论文的发表时间）