A method and an apparatus for a terminal, where the method includes obtaining a first video sequence photographed by a first camera and a second video sequence photographed by a second camera, determining, according to a first image in the first video sequence and photographed at a first moment and a second image in the second video sequence and photographed at the first moment, an available first motion vector (V), and a third image and a fourth image corresponding to the V, obtaining a second motion vector (U) of the first image relative to the third image, obtaining a third motion vector (W) of the fourth image relative to the second image, and obtaining a correspondence between a pixel in the first image and a pixel in the second image according to the V, the U, and the W.