METHOD FOR CODEC-BASED RECOVERY OF A VIDEO USING A CLUSTER SEARCH

摘要

Disclosed is a method for codec-based recovery of a video, which involves recovering an image by combining image decoding information and non-overwritten image frames. The method comprises: a cluster extraction step of extracting a pre-cluster region; a region extraction step of extracting, from the pre-cluster region extracted in the cluster extraction step, an M frame region which is encoded using an MPEG-4 visual codec and an M decoding region, i.e. MPEG-4 visual decoding information; a combining step of combining the M frame region and the M decoding region extracted in the region extraction step and listing the combination; and a recovering step of decoding the M frame region and the M decoding region, listed in the combining step, to be recovered as an image. The method for codec-based recovery of a video involves combining decoding information and non-overwritten image frames, decoding the combination so as to recover images, and then interconnecting the recovered images so as to recover a video even when a video file is fragmented and a portion of the data thereof is overwritten.