SYSTEM AND METHOD FOR IMAGE MEASURING

Abstract

A method for image measuring is provided. The method includes the steps of: providing a workpiece on an image measuring instrument (20) connected to a computer (10); receiving a coordinate position of a zoom lens (220) on the image measuring instrument; compensating errors of the coordinate position; adjust the focal lengths and positioning of the zoom lens, and receiving an image of the workpiece; processing the image of the workpiece; mapping/computing coordinate systems and structural patterns of the image, and obtaining structural data of the image; and outputting the structural data of the image. A related system is also provided.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of hardware configuration of a system for image measuring in accordance with one preferred embodiment;

FIG. 2 is a schematic diagram of function modules of an image measuring unit in FIG. 1;

FIG. 3 is a flowchart of a method for preparing image measuring in accordance with one preferred embodiment; and

FIG. 4 is a flowchart of a method for image measuring in accordance with one preferred embodiment.

Claims

1. A system for image measuring, the system comprising: a data receiving module for receiving a coordinate position of a zoom lens on an image measuring instrument connected to a computer, and for receiving an image of a workpiece on the image measuring instrument;an accuracy compensating module for compensating errors of the coordinate position of the zoom lens;an image processing module for processing the image of the workpiece;a computing module for mapping/computing coordinate systems and structural patterns of the image, and obtaining structural data of the image; andan outputting module for outputting the structural data of the image.

2. The system according to claim 1, further comprising a storing module for storing the structural data of the image.

3. The system according to claim 1, further comprising a code recording module for recording measuring configurations with corresponding procedure codes while measuring the workpiece.

4. The system according to claim 1, further comprising a graph plotting module for plotting a structural graph of the workpiece based on the structural data of the image.

5. The system according to claim 1, wherein the image processing module processes the image of the workpiece by: identifying outlines of the image via an edge tool; analyzing the structural patterns of the outlines; filtering the outlines smoothly via a filter tool; and computing a sharpness of the image.

6. The system according to claim 1, wherein the computing module computes the coordinate systems by: using a mechanical coordinate system of the image measuring instrument as a reference coordinate grid, and mapping coordinate systems selected by an operator according to the coordinate grid.

7. The system according to claim 1, wherein the computing module computes the structural patterns of the image by: computing spatial locations of structural patterns of the image, and computing relative coordinates between two different structural patterns of the image.

8. The system according to claim 1, wherein the structural data include coordinates of the image, a geometrical shape of the image, and a unit vector of the image.

9. The system according to claim 1, wherein the measuring configurations comprise a positioning coordinates and a positioning speed of the zoom lens, an edge tool, a focus tool, measuring elements, constructive elements, and coordinates.

10. A computer-based method for image measuring, the method comprising the steps of: providing a workpiece on an image measuring instrument connected to a computer;receiving a coordinate position of a zoom lens on the image measuring instrument;compensating errors of the coordinate position;adjust the focal lengths and positioning of the zoom lens, and receiving an image of the workpiece;processing the image of the workpiece;mapping/computing coordinate systems and structural patterns of the image, and obtaining structural data of the image; andoutputting the structural data of the image.

11. The method according to claim 10, further comprising the step of storing the structural data of the image, and recording measuring configurations with corresponding procedure codes while measuring the workpiece.

12. The method according to claim 10, further comprising the step of plotting a structural graph of the workpiece based on the structural data of the image.

13. The method according to claim 10, wherein the step of processing the image of the workpiece comprises: identifying outlines of the image via an edge tool;analyzing the structural patterns of the outlines;filtering the outlines smoothly via a filter tool; andcomputing a sharpness of the image.

14. The method according to claim 10, wherein the step of computing coordinate systems and structural patterns of the image, and obtaining structural data of the image comprises: using a mechanical coordinate system of the image measuring instrument as a reference coordinate grid;mapping coordinate systems selected by an operator according to the coordinate grid;computing spatial locations of structural patterns of the image; andcomputing relative coordinates between two different structural patterns of the image.

15. The method according to claim 10, wherein the structural data include coordinates of the image, a geometrical shape of the image, and a unit vector of the image.

16. The method according to claim 10, wherein the measuring configurations comprise a positioning coordinates and a positioning speed of the zoom lens, an edge tool, a focus tool, measuring elements, constructive elements, and coordinates.