Patent ID: 8503758
Filing Date: 2013-08-06
Classification: G01B,G06T

Abstract:
1. An image measurement device for measuring sizes of each workpiece in a workpiece image including a plurality of workpieces having the same shape and about the same size by detecting edges therein, the image measurement device comprising a measuring unit and a control unit; said control unit having a measurement configuration data storage section for storing characteristic amount information indicating characteristic amounts for detecting the plurality of workpieces from the workpiece image, information for portions to be measured, and setting value information including a design data and tolerances in association with the portions to be measured; said control unit having a placement state detection section for detecting positions and postures of the plurality of workpieces by analyzing the workpiece image using the characteristic amounts; said control unit having an edge detection section for detecting edges of the portions to be measured from the workpiece image for the workpieces of which the positions and the postures are detected; said control unit having a pass-fail determination section for calculating the sizes of the portions to be measured based on the detected edges, comparing differences between the sizes and the design data with the tolerances, performing a pass-fail determination of the portions measured, and performing a pass-fail determination of the workpieces based on the pass-fail determination of the portions measured, wherein the workpiece is determined to be good when the differences at all of the portions measured are within a tolerance range, and the workpiece is determined to be defective when the differences at any of the portions measured is out of the tolerance range; a measurement result display section for displaying results of the pass-fail determination of the workpieces over the workpiece image, wherein the result of pass-fail determination is displayed in a first display state in which the pass-fail for each detected workpiece is identified; and said control unit having a workpiece selection section for selecting any of the workpieces, wherein the measurement result display section shifts to a second display state when any of the workpieces in the workpiece image is selected by the workpiece selection section in the first display state, and displays the result of the pass-fail determination of the portions measured for the workpiece selected by the workpiece selection section.