H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/14 (2006.01) G06T 9/00 (2006.01) H04N 7/46 (2006.01) H04N 5/445 (2006.01) H04N 7/16 (2006.01) H04N 7/24 (2006.01) H04N 7/52 (2006.01) H04N 7/58 (2006.01)
Patent
CA 2370266
A data structure (fig. 1) suited to efficiently representing a plurality (fig. 8) of image streams (A, B) including common and non-common portions (fig. 5, items 532, 536). Specifically, a plurality of similar group of picture (GOP) data structures representing the corresponding plurality of image streams including common and non-common portions (fig. 5, items 532, 536) is adapted to provide first and seccond stream comprising only P-picture, and B-picture access units of one of the similar GOP data structures (fig. 5, items 526, 520). In this manner, the redundant P-picture and B-picture access units within the encoded streams are eliminated, thereby greatly reducing the bandwidth or memory resources (fig. 4, item 470) needed to transmit or store the plurality of image streams (A, B).
L'invention concerne une structure de données (fig.1) convenant à la représentation efficace de plusieurs (fig.8) flux d'images (A, B) comprenant des parties communes et non communes (fig.5, articles 532, 536). Plus particulièrement, plusieurs structures similaires de données de groupe d'images (GPO) représentant plusieurs flux d'images correspondants comprenant des parties communes et non communes (fig. 5, articles 532, 536) sont conçues pour produire des premier et second flux comprenant seulement des unités d'accès d'image P et d'image B d'une des structures de données GOP similaires (fig. 5, articles 526, 520). De cette manière, les unités d'accès d'image P et d'image B superflues à l'intérieur des flux codés sont éliminées, ce qui réduit grandement la largeur de bande ou les ressources de mémoire (fig.4, article 470) nécessaires à la transmission ou au stockage de plusieurs flux d'images (A, B).
Bayrakeri Sadik
Comito John P.
Edmonds Jeremy S.
Gershtein Eugene
Gordon Donald F.
Comcast Ip Holdings I. Llc
Deeth Williams Wall Llp
Diva Systems Corporation
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