1. A method for pixel mapping between an origin superpixel in a first image and a target superpixel in a second image, the method comprising: determining feature vectors of origin pixels of the origin superpixel; determining feature vectors of target pixels of the target superpixel; and selecting a mapping pixel for an origin pixel among the target pixels based on a comparison of the feature vectors, wherein a feature vector of a pixel comprises a relative distance of the pixel to a mass center of the superpixel and a topology value of the pixel.