Error tracking and mitigation for motion compensation-based video compression

The present invention relates to an error tracking and mitigation for motion compensation-based video compression. The invention describes a method and an encoder for tracking errors in a video frame to a follow-up frame of the video. In response to receiving an error notification message indicating...

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Bibliographische Detailangaben
Hauptverfasser: SUDHANSHU SOHONI, ROBERT GRAHAM ISHERWOOD, PARAG SALASAKAR
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to an error tracking and mitigation for motion compensation-based video compression. The invention describes a method and an encoder for tracking errors in a video frame to a follow-up frame of the video. In response to receiving an error notification message indicating an error has occurred in an encoded frame, during decoding, an encoder obtains (a) the minimum and maximum horizontal motion vector components for each column of blocks, and (b) the minimum and maximum vertical motion vector components for each row of blocks of the frame, immediately following the error frame. A rectangular region of blocks, of the frame immediately following the error frame that the error is likely to have propagated to is identified using the obtained minimum and maximum horizontal and vertical motion vector components.