1. A medical diagnostic ultrasound method for forming an extended field of view of a target, the method comprising the acts of: (a) selecting first and second medical ultrasonic images, the first and second images partially overlapping; (b) compounding the first image with the second image in an overlapping region in response to a finite impulse response function; and (c) generating an extended field of view image responsive to (b); wherein at least a portion of the extended field of view image corresponding to the overlapping region is free of recursive compounding.