Patent ID: 11972583
Assignee: BGI SHENZHEN
Field: Measurement (Instruments)
Classification: CPC G  C | IPC C  G

Claim 4:
5. The fluorescence image registration method according to claim 4, wherein the dividing the pixel registration points into non-defective pixels and defective pixels according to the preset classification rule further comprises:
obtaining, in the second direction of the preset local region, the pixel registration points on any row;
selecting one of the obtained pixel-level registration points, and obtaining a plurality of slopes by calculating a slope between the selected pixel-level registration point and each of other pixel-level registration points on the any row;
sorting the plurality of slopes according to a preset sorting rule, obtaining a first median value from the plurality of slopes and setting the first median value as a first slope of the selected pixel-level registration point;
obtaining a first slope of each of the other pixel-level registration points on the any row, and sorting all the first slopes of the pixel-level registration points on the any row according to the preset sorting rule, obtaining a second median value from all the first slopes and setting the second median as a second slope of the any row; and setting a point corresponding to the second slope on the any row as a reference point;
obtaining a second slope of each of other rows, and sorting the second slopes of all rows of the preset local region according to the preset sorting rule, and obtaining a third median value from all the second slopes and setting the third median value as a common slope of all rows; and
performing a straight line fitting for all rows according to the common slope and the reference point, and dividing the pixel-level registration points into non-defective pixels and defective pixels according to the fitted straight line.