System for creating component shape data for image processing, and method for creating component shape data for image processing

Patent metadata

Field	Value
Publication number	US-10861199-B2
Application number	US-201616340730-A
Country	US
Kind code	B2
Filing date	Oct 25, 2016
Priority date	Oct 25, 2016
Publication date	Dec 8, 2020
Grant date	Dec 8, 2020

Abstract

A system for creating component shape data for image processing to be used when performing image recognition of a component to be mounted by a component mounter including drawing a wire frame on top of the component image such that the wire frame surrounds a measurement target portion of the component image displayed on a display section; automatically aligning the position of the side of the wire frame to the edge position of the measurement target portion; and creating the component shape data for image processing by measuring the shape data of the measurement target portion surrounded by the wire frame for which the four sides of the wire frame were automatically aligned with the edge positions in four directions of the measurement target portion by the automatic aligning.

First claim

The invention claimed is:

1. A system for creating component shape data for image processing to be used when performing image recognition of a component to be mounted by a component mounter, the system comprising:
a display section configured to display a captured component image of a component that is a creation target for the component shape data for image processing; and
processing circuitry configured to
draw a wire frame on top of the component image such that the wire frame surrounds a measurement target portion of the component image displayed on the display section, and to move a position of a side of the wire frame in accordance with a drag operation of an operator;
use image processing to detect an edge position of the measurement target portion of the component image;
automatically align the position of the side of the wire frame to the edge position of the measurement target portion when the position of the side of the wire frame moved by the drag operation of the operator enters a specified range near to the edge position of the measurement target portion;
create the component shape data for image processing by measuring the shape data of the measurement target portion surrounded by the wire frame for which four sides of the wire frame were automatically aligned with the edge positions in four directions of the measurement target portion;
project a brightness level of a region along a straight line that passes through each side of the wire frame in the component image along a coordinate axis extending in the drag operation direction; and
detect a position for which a change ratio of a projection brightness exceeds a specified range as the edge position of the measurement target portion.

2. The system for creating component shape data for image processing according to claim 1 , wherein
the processing circuitry is configured to detect the edge position of the measurement target portion based on a brightness change of the component image in a direction of the drag operation.

3. The system for creating component shape data for image processing according to claim 1 ,
wherein the processing circuitry is configured to correct an angle of the component image displayed on the display section, and
wherein the processing circuitry is configured to draw the wire frame on the component image for which the angle has been corrected.

4. The system for creating component shape data for image processing according to claim 1 , wherein
the system for creating component shape data for image processing is provided externally to the component mounter, and
an image processing system of the component mounter performs image recognition of the component to be mounted by the component mounter using the component shape data for image processing.

5. The system for creating component shape data for image processing according to claim 1 , wherein
the system for creating component shape data for image processing is provided in the component mounter, and
when investigating a cause of an error that occurred at the component mounter, the component held by a suction nozzle of the component mounter is imaged using a component recognition camera of the component mounter, and that component image is displayed on a display section of the component mounter such that the component shape data for image processing can be recreated.

6. A method for creating component shape data for image processing to be used when performing image recognition of a component to be mounted by a component mounter, the method comprising:
displaying a captured component image of a component that is a creation target for the component shape data for image processing;
drawing a wire frame on top of the component image such that the wire frame surrounds a measurement target portion of the component image displayed on a display section, and moving a position of a side of the wide frame in accordance with a drag operation of an operator;
using image processing to detect an edge position of the measurement target portion of the component image;
automatically aligning the position of the side of the wire frame to the edge position of the measurement target portion when the position of the side of the wire frame moved by the drag operation of the operator enters a specified range near to the edge position of the measurement target portion detected by the edge position detection;
creating the component shape data for image processing by measuring the shape data of the measurement target portion surrounded by the wire frame for which four sides of the wire frame were automatically aligned with the edge positions in four directions of the measurement target portion by the automatic aligning;
projecting a brightness level of a region along a straight line that passes through each side of the wire frame in the component image along a coordinate axis extending in the drag operation direction; and
detecting a position for which a change ratio of a projection brightness exceeds a specified range as the edge position of the measurement target portion.

Assignees

• Fuji Corp

Inventors

• Kito Shuichiro
• Inaura Yuki

Classifications

• G06T11/23 Primary

  using straight lines or curves · CPC title

• G06T7/12 Primary

  Edge-based segmentation · CPC title

• G06T2207/20104

  Interactive definition of region of interest [ROI] · CPC title

• G06T2200/24

  involving graphical user interfaces [GUIs] · CPC title

• G01B11/028

  by measuring lateral position of a boundary of the object (G01B11/022, G01B11/024, G01B11/04 take precedence) · CPC title