Advances in research on computer-vision diagnosis of crop diseases.

Statistics indicate that the crops output average loss caused by plant disease is above 12%, plant diseases not only affect the output directly, but also seriously reduce the quality of agricultural products. Taking the preventing and controlling measures promptly through rapid diagnosis and identification of crop diseases and improving the diagnosis level of crop diseases are an important part in preventing and controlling plant disease effectively. Development of computer-vision technology makes it possible to diagnose crop diseases quickly, economically and no-destructively. Firstly, the new progress of computer-vision diagnoses of crop diseases is reviewed, and the four types of technology routines of diagnosis of crop diseases are summarized. Secondly, the difficulties of diagnosing crop diseases with computer-vision are analyzed, and the possible solutions are discussed. Finally the development trend of computer-vision diagnosis of crop diseases is discussed.