Certificate positioning method, device and equipment and storage medium

The invention relates to an image processing technology, and discloses a certificate positioning method, device and equipment and a storage medium, and the method comprises the steps of marking the vertex coordinates of a certificate frame in a certificate sample image, and respectively generating a first thermodynamic diagram, a first scale mapping diagram and a first center offset diagram; performing prediction processing on the certificate sample image by using a pre-constructed certificate positioning model, and respectively obtaining a second thermodynamic diagram, a second scale mapping diagram and a second center offset diagram which are obtained by prediction; calculating a first loss value, a second loss value and a third loss value; calculating a loss sum according to a loss formula; performing repeated iteration training on the certificate positioning model, recalculating the loss sum, and when the loss sum is smaller than a preset threshold value, obtaining a standard certificate positioning model