STUDY ON APPLICATION OF PLANE DIGITAL MEASUREMENT IN AGRICULTUNE
Xirong Li · Shandong Nongye Daxue xuebao · 2005
The precision of digital measurement of plane is higher, degree of accuracy is different acconding to the measure project.The beeline and angle, degree of accuracy at the time of measurement are higher, the errors that are produced relate to length of measurement、 distance and sensitization mode. The longer the length of beeline measurement is,the less the error is. The sensitization mode is suitable for more than 2048*1530 at the time of angle measurement.For measurements of curve and area, the error is greater at the time of measurement. The error was related with the performance and controlling of mouse with.But the degree of accuracy of area measurement can reach very high level. Color measurement has nothing to do with mode of sensitization, The degree of accuracy is influenced by the distance of digital measurement, The distance should keep 150 cm at least. Digital measurement can reflect accurately the daily cnanges of crops in aspects of beeline、angle and color.The leaf color can be recorded digital.