Method and system for measuring length of fisheye needle terminal

The invention provides a fisheye needle terminal length measurement method and system. The method comprises the steps of obtaining an acquisition image of a fisheye needle terminal; performing target detection on the acquired image to determine a fisheye needle terminal image in the acquired image; performing bilateral filtering on the fisheye pin terminal image; performing edge detection on the fisheye pin terminal image subjected to bilateral filtering to determine a terminal area in the fisheye pin terminal image; feature point extraction is carried out on the terminal area; performing feature point matching on the extracted feature points and a template, and determining images of tip and tail areas of the fisheye needle terminal; and performing one-dimensional measurement based on the images of the tip and tail areas to determine the length of the fisheye needle terminal. According to the invention, the length of the fisheye pin terminal can be automatically detected, and the detection efficiency is impro