Sample testing method and sample analyzer

A sample image photographing apparatus, comprising:

• an imaging device, which is provided with a camera and an objective lens and is configured to photograph a sample image of a sample on a sample carrier;
• a sample carrier holding device configured to hold the sample carrier;
• a driving device, which is provided with a horizontal drive component configured to enable the sample carrier to be held by the sample carrier holding device to move horizontally relative to the imaging device and a vertical drive component configured to enable the sample carrier to be held by the sample carrier holding device to move vertically relative to the imaging device;
• and
• a control device, which is in communication connection with the driving device and the imaging device and is configured to:
• obtain horizontal position coordinates of at least three reference points in a sample area of a test sample carrier to be held by the sample carrier holding device;
• control the horizontal drive component of the driving device to move the test sample carrier horizontally relative to the imaging device to allow the at least three reference points to separately stop within a field of view of the objective lens of the imaging device, and control the imaging device to focus on the at least three reference points to obtain focusing parameters of the at least three reference points;
• determine a focusing surface representation function of the test sample carrier according to the horizontal position coordinates and the focusing parameters of the at least three reference points, the focusing surface representation function representing a relationship between horizontal position coordinates and a focusing parameter of a point to be photographed in the sample area of the test sample carrier;
• control the horizontal drive component of the driving device to move the test sample carrier horizontally relative to the imaging device;
• and
• control the imaging device to photograph an area of interest of the sample area of the test sample carrier by the imaging device to obtain the sample image at a predetermined photographing interval, while the test sample carrier moves horizontally relative to the imaging device by the horizontal drive component of the driving device, wherein
• the area of interest is at a focus status during photographing based on the focusing surface representation function so that the driving device does not need to stop for focusing of the imaging device.

A sample image photographing apparatus, comprising:

• an imaging device, which is provided with a camera and an objective lens and is configured to photograph a sample image of a sample on a sample carrier;
• a sample carrier holding device configured to hold the sample carrier;
• a driving device, which is provided with a horizontal drive component configured to enable the sample carrier to be held by the sample carrier holding device to move horizontally relative to the imaging device and a vertical drive component configured to enable the sample carrier to be held by the sample carrier holding device to move vertically relative to the imaging device;
• and
• a control device, which is in communication connection with the driving device and the imaging device and is configured to:
• determine a focusing surface representation function of a current test sample carrier according to a feature of a sample on the current test sample carrier, the focusing surface representation function representing a relationship between horizontal position coordinates and a focusing parameter of a point to be photographed in a sample area of the current test sample carrier;
• control the horizontal drive component of the driving device to move the current test sample carrier horizontally relative to the imaging device;
• and
• photographing an area of interest of the sample on the sample carrier by the imaging device to obtain the sample image, while the sample carrier moves horizontally relative to the imaging device by the horizontal drive component of the driving device, wherein
• the area of interest is at a focus status during the photographing based on the focusing surface representation function so that the driving device does not need to stop for focusing of the imaging device.