Abstract: A system, method, device, and computer program product are provided for correcting motion skew in a frame of video or in other images captured using a rolling shutter image sensor. A method for removing motion skew may create a mathematical model of the motion skew, compute the motion skew using the mathematical model of the motion skew, remove the distorted image of the object from view in the image using the computed motion skew, and render a corrected image of the object in the image using the computed motion skew.

Abstract: A sport movement analyzer and training device and method, in real time, detect, analyze, correct and re-create sport movements of a user. An analyzer is secured to a user's wrist engaged in sport movements. A sensing unit in the analyzer provides signals representative of the movement of the wrist at various swing positions along a swing path during a sport movement. A processor in the analyzer processes the signals to measure various parameters descriptive of a sport performance of the user at the swing positions along the swing path. Stored programs in the analyzer service the processor in processing the signals representative of the sport performance for display to the user. A history of past sport performances by the user is stored for comparison purposes with current sport performances.