Image acquiring device and method of correcting coordinates thereof

A method of correcting coordinates of an image acquiring device, comprising:

• acquiring a defect in a sample to be photographed detected in a preprocessing and a first coordinate of the defect;
• initializing a position of a photographing device according to the first coordinate of the defect, and acquiring a picture currently captured by the photographing device;
• if the defect in the picture currently captured by the photographing device is not located at the center of the picture, adjusting the position of the photographing device according to a position of the defect in the picture currently captured by the photographing device until the defect in the picture currently captured by the photographing device is located at the center of the currently captured picture;
• if the defect in the picture currently captured by the photographing device is located at the center of the currently captured picture, photographing the defect and recording a current coordinate of the defect as a second coordinate;
• and
• providing the second coordinate of the defect to a data management system, so that a subsequent processing locates the defect according to the second coordinate of the defect, and performs a corresponding operation to the defect.
• calculating a coordinate offset according to the second coordinate of the defect and the first coordinate of the defect detected by the preprocessing, so that if photographing a defect in another positions of the sample to be photographed, the position of the photographing device is initialized according to the first coordinate of the defect at the another positions and the coordinate offset;
• and
• setting the calculated coordinate offset as the coordinate offset of the defect in the image acquiring device and the defect detected in the sample to be photographed, and of a preprocessing machine of the first coordinate of the defect, so that the second coordinate of all defects in the sample to be photographed of the same preprocessing machine is obtained according to the coordinate offset.

An image acquiring device, comprising:

• a memory, a processor, and the following program modules stored in memory and run on the processor:
• a first coordinate acquiring module configured to acquire a defect in a sample to be photographed detected in a preprocessing and a first coordinate of the defect;
• a photographing device initializing module configured to initialize a position of a photographing device according to the first coordinate of the defect, and acquire a picture currently captured by the photographing device;
• a photographing device adjusting module configured to:
• if the defect in the picture currently captured by the photographing device is not located at the center of the picture, adjust the position of the photographing device according to a position of the defect in the picture currently captured by the photographing device until the defect in the picture currently captured by the photographing device is located at the center of the currently captured picture;
• a second coordinate acquiring module configured to:
• if the defect in the picture currently captured by the photographing device is located at the center of the currently captured picture, photograph the defect and record a current coordinate of the defect as a second coordinate;
• and
• an uploading module configured to provide the second coordinate of the defect to a data management system, so that a subsequent processing locates the defect according to the second coordinate of the defect, and performs a corresponding operation to the defect.