1. An image processing system for detection of objects in motion, said image processing system comprising: one or more circuits in an electronic device configured to: compute a first motion vector based on a difference of pixel values of one or more pixels in a current frame with respect to a previous frame, wherein said current frame and said previous frame comprises at least an object in motion; compute a second motion vector by use of motion-based information obtained from a sensor in said electronic device; determine validation of said first motion vector based on said second motion vector and one or more criteria; and extract said object in motion from said current frame based on said determined validation of said first motion vector.