1. A method for measuring the spatial frequency response (SFR) of an imaging system including a display device and an image capture device, said method comprising the steps of: displaying a sequence of displayable test pattern images on the display device, the sequence comprising a first test pattern image and at least two subsequent test pattern images, each of the displayable test pattern images including a test pattern having at least one sinusoidal pattern at one or more spatial frequencies such that a phase shift of the sinusoidal pattern has a plurality of pre-determined values; capturing the displayed images with the image capture device to generate a corresponding sequence of captured test pattern images; and comparing the captured test pattern images with the displayable test pattern images to calculate the SFR at a plurality of image locations in said imaging system at the one or more spatial frequencies.