Method and device for positioning feature information of target object

The invention discloses a method and device for positioning feature information of a target object. The content includes: dividing an image frame including a target object, determining a target object region, using a feature information classifier to scan the determined target object region, determining central point position information of a region that feature information to be positioned occupies in the target object region, performing affine transformation operation on the determined central point position information, and obtaining initial position information corresponding to the region that the feature information to be positioned occupies in the target object region, thereby improving precision of initial positioning; performing iteration processing on the obtained initial position information, obtaining position information corresponding to the region that the feature information to be positioned occupies in the target object region, integrating the obtained position information corresponding to the region that the feature information to be positioned occupies in the target object region, and obtaining the feature information of the target object, thereby improving precision of positioning the feature information of the target object.