1. A video-processing device comprising: a processor; an electronic memory; and computer instructions stored within the electronic memory that control the processor to process an encoded region of a video frame, stored in the electronic memory, to generate a corresponding region of a reconstructed video frame, stored in the electronic memory, by extracting, from the encoded region of the video frame, a reference to a region of a segmentation map, stored in the electronic memory, associated with a first, previously decoded video frame, and for each segment defined in the region of the segmentation map referenced by the extracted reference, generating video data from one or more previously decoded video frames, stored in the electronic memory, and copying the generated video data into a corresponding segment of the region of the reconstructed video frame.