A super-resolution recovery module 805 is configured to perform super-resolution picture recovery on the non-I frame obtained from the decoding, so as to obtain an original-resolution non-I frame picture. Specifically, as shown in FIG. 9, the super-resolution recovery module 905 in some implementations of the present invention may further include the following units. A data obtaining unit 9051, configured to obtain motion vector and residual data of an inter-frame coded macroblock in the non-I frame obtained from the coding. An inter-frame coding recovery unit 9052, configured to select, according to the motion vector and residual data of the macroblock, which are obtained by the data obtaining unit, to use spatial interpolation filtering, temporal interpolation filtering, or combined temporal and spatial interpolation filtering, so as to perform the super-resolution picture recovery on the inter-coded macroblock. When performing the super-resolution picture recovery on the inter-coded macroblock in the manner of temporal interpolation filtering or combined temporal and spatial interpolation filtering, the inter-frame coded macroblock may be performed with the super-resolution picture recovery according to the picture obtained from the H.264 standard decoding of the corresponding I frame of the non-I frame. For a specific selection method, reference may be made to the description in combination with FIG. 5 in the forgoing method, which is not repeated herein. An intra-frame coding recovery unit 9053, configured to perform the spatial interpolation filtering on the intra-coded macroblock in the non-I frame obtained from the decoding.