Cooperative-target-based real-time global search method for high-speed vision measurement

The invention discloses a cooperative-target-based real-time global search method for high-speed vision measurement and relates to a marking-point search method. By using the real-time global search method, the problems that in the high-speed vision measurement, the global search process is overlong in time consumption and is sensitive to the resolution of a camera, and the updating rate of a system is limited by the moving speed of the target are solved. In a data preprocessing module, parallelized data are outputted to a data buffering control module and a marking-point real-time detection module simultaneously. After the marking-point real-time detection module detects a marking-point pixel, subsequent related data of marking points are sent to an operating module which is in a multi-production-line structure; and after the transmission of a frame image is ended, coordinates of all the marking points can be outputted, and mass-center data of the marking points are obtained by calculation and is stored into a corresponding cache. The real-time global search method disclosed by the invention has the advantages that the global search process is short in time consumption, good in robustness and insensitive to the resolution to the camera and the moving speed of the target. The real-time global search method is applicable to the image processing field and the vision-measuring field.