Patent ID: 8134621

Claim:
A method for capturing an image of a moving object comprising: setting a minimum frame rate for a rolling-reset imager based on at least a velocity of the moving target, the rolling-reset imager including sensor pixels; wherein the moving object includes multiple elements, and wherein there is a minimum width in the direction the object moves defined by at least one of the elements; operating the rolling-reset imager on a rolling-reset basis to create frames having substantially all the sensor pixels in an exposed state, the frames created at a frame rate of at least the minimum frame rate; pulsing an illumination source during each frame to produce pulsed illumination, where the pulsed illumination has a duration, the duration defines an exposure time for capturing the image of the moving object, and the illumination duration is based on the minimum element width in the direction the object moves and the velocity of the object; reflecting ambient illumination and the pulsed illumination off the moving object; and forming a pixelized electronic representation of the moving object on a rolling-reset basis substantially during the exposure time and substantially using the pulsed illumination reflected off the moving object.