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1. US20100074333 - Method and system for transcoding based robust streaming of compressed video

Office États-Unis d'Amérique
Numéro de la demande 12555591
Date de la demande 08.09.2009
Numéro de publication 20100074333
Date de publication 25.03.2010
Numéro de délivrance 08718135
Date de délivrance 06.05.2014
Type de publication B2
CIB
H04N 11/04
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
NTRANSMISSION D'IMAGES, p.ex. TÉLÉVISION
11Systèmes de télévision en couleurs
04utilisant la modulation par impulsions codées
Déposants Au Oscar Chi Lim
The Hong Kong University of Science and Technology
Fan Xiaopeng
Inventeurs Au Oscar Chi Lim
Fan Xiaopeng
Mandataires Leydig, Voit & Mayer, Ltd.
Titre
(EN) Method and system for transcoding based robust streaming of compressed video
Abrégé
(EN)

Described herein is a novel transcoding technique called lossless inter frame transcoding (LIFT) for improving the error resilience of video streaming. According to various embodiments, conventional coded blocks are selectively transcoded into new transcoded blocks. At the decoder, the transcoded blocks can be transcoded back to the conventional coded blocks when prediction is available and can also be robustly decoded independently when prediction is unavailable. According to another embodiment, an offline transcoding and online composing technique is provided for generating a composite frame using the transcoded and conventional coded blocks and adjusting the ratio of the transcoded blocks, thereby achieving error robustness scalability.