Method and system for measuring external characters of grafted seedlings based on machine vision

• Main Authors: CAI LIYUAN, WU CHUANYU, YANG MENGAI, WANG ZHELU, HE LEIYING
• Format: Patent
• Language: Chinese; English
• Published: 06.03.2013
• Subjects: MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention relates to a method and system for measuring the external characters of grafted seedlings based on machine vision and aims at enabling the external character parameters of the seedlings to be measured by the provided measuring method without being in contact with the seedlings. The external character parameters of the seedlings can be accurately measured by the provided measuring system. The invention adopts the technical scheme that the method for measuring the external characters of the grafted seedlings based on the machine vision comprises the following steps of: 1, acquiring the image of a whole tray of grafted seedlings in an overhead view direction; 2, calculating the seed and leaf parameter information of all the grafted seedlings in the acquired image of the whole tray of grafted seedlings by an image processing algorithm and sending the parameter information to a controller; 3, acquiring the image of one row of grafted seedlings in a front view direction, calculating the parameter info