Display method of visual detection result of curved object under test

Abstract

The invention discloses a method for displaying the results of visual detection of a curved object to be tested. The visual detection device is fixed on a robot and moves at a uniform speed synchronously with the end of the robot. The visual detection device then acquires an image of the corresponding position of the curved object to be measured; overview There are multiple display frames evenly distributed on the map, and the display frames are associated with the detection results of the corresponding positions; the multiple display frames distributed on the overview map are obtained by the following steps before the test: 1) Obtain an overview of the curved object to be tested Figure, manually mark the first and last two endpoints, and then manually mark the schematic points along the curved object to be measured, all points are recorded as the first type of points; the first type of points can feedback the shape characteristics of the curved object to be measured; 2) in Evenly insert the second-type points between two adjacent first-type points; 3) draw the display frame according to the positions of all the first-type and second-type points. The display position of the method corresponds to the visual detection result, and can display the actual position of the detection result on the part in real time.

Description

technical field [0001] The invention relates to the field of product quality inspection, in particular to a display method for visual inspection results of a curved object to be tested. Background technique [0002] At present, when displaying the visual inspection results of curved objects (such as rubber strips, welds, etc.), the NURBS (Non Uniform Rational B-spline) method is usually used on the overview map, also known as non-uniform rational B-spline curve , the marker points set by it present non-uniformity on the image (such as figure 1 As shown), the distribution points of the straight line segment are too loose, and the points distribution of the curved segment is dense, which is not the same as the actual detection process to obtain the image. In actual inspection, the robot moves at a constant speed relative to the workpiece to be processed. The visual inspection equipment is generally fixed at the end of the robot and moves synchronously with the end of the robo...

AI Technical Summary

Problems solved by technology

In this method, only a single image and evaluation results are viewed at a time, and the global detection results cannot be viewed at a glance, and the detection results cannot quickly correspond to the actual position

Images