Heart image registration method

The invention provides a heart image registration method. The heart image registration method comprises the following steps that (1) a heart image is input, and the initial center position of a heart is determined; (2) according to the initial center position, the initial positions of key points of the heart are determined; (3) according to the initial positions of the key points and a position detector of the key points, the positions of the key points of the heart are determined; (4) the error sum of first norms between the key points and corresponding heart key points in a reference image is worked out, errors of the norms and the minimum spatial affine transformation are solved, and the result obtained is the registration result. The heart image registration method increases the registration speed and accuracy and also has excellent robustness.