1. A method for dynamic steered spatial compounding in ultrasound imaging, the method comprising: acquiring steered component frames of data, the steered component frames of data representing an overlap region of a patient and being responsive to different imaging angles; determining when variance between the steered component frames of data is associated with motion and when the variance is associated with signal; setting weights as a function of the motion when the variance between the steered component frames of data is associated with the motion; setting the weights as a function of type of tissue when the variance is associated with signal; compounding the steered component frames of data together as a function of the weights; and generating an image of the overlap region from a result of the compounding.