1. A method for object tracking, comprising: computing, by an image-processing device, a first confidence score of a first geometrical shape encompassing at least a portion of an object in a first image frame of a video stream, wherein said first geometrical shape is utilized to track said object in said video stream; and splitting, by said image-processing device, said first geometrical shape into a plurality of second geometrical shapes based on a first comparison of said computed first confidence score with a threshold score, wherein said splitting is based on a size value, of said first geometrical shape, greater than a threshold size.