Vertebra positioning method based on CT sequence image

The invention provides a vertebra positioning method based on a CT sequence image, and the method comprises the following steps: S1, loading the CT sequence image, and segmenting bone regions of the CT sequence image; S2, searching a region with the maximum area in the bone regions from all frames, wherein the region with the maximum area serves as a vertebra region; S3, positioning a vertebra positioning point of the uppermost row of the vertebra region in each frame, and judging the validity of the vertebra positioning points through prior information; S4, correcting the position of the vertebra positioning points. The method can achieve the vertebra positioning under the condition of no artificial assistance, can precisely find the positioning points, improves the speed of vertebra positioning, and achieves the automatic, quick and accurate positioning of vertebra.