| US 7,551,671 B2 | ||
| System and method for transmission of video signals using multiple channels | ||
| Katherine S. Tyldesley, Tucson, Ariz. (US); Glen P. Abousleman, Scottsdale, Ariz. (US); and Lina J. Karam, Phoenix, Ariz. (US) | ||
| Assigned to General Dynamics Decision Systems, Inc., Scottsdale, Ariz. (US) | ||
| Filed on Dec. 01, 2003, as Appl. No. 10/725,126. | ||
| Claims priority of provisional application 60/463573, filed on Apr. 16, 2003. | ||
| Prior Publication US 2004/0218626 A1, Nov. 04, 2004 | ||
| Int. Cl. H04N 11/04 (2006.01) | ||
| U.S. Cl. 375—240 [375/240.16; 375/240.14; 375/240.24; 375/349; 375/260] | 17 Claims |
| 1. A method of facilitating transmission of video frames over multiple channels in a communication system, said method comprising:
for each of said video frames, generating frame data representative of said each video frame;
transforming said frame data to obtain transform coefficients of said frame data;
assembling quadtrees of said transform coefficients, each of said quadtrees including a group of said transform coefficients
associated with an equivalent spatial location in said each video frame;
separately coding said quadtrees to form coded quadtree coefficient groups, one each of said coded quadtree coefficient groups
being associated with one each of a plurality of distinct spatial locations in said each video frame; and
distributing said coded quadtree coefficient groups among said multiple channels for transmission, said distributing operation
including assigning said coded quadtree coefficient groups to said multiple channels such that said coded quadtree coefficient
groups representing adjacent ones of said distinct spatial locations in said each video frame will be transmitted over different
ones of said multiple channels.
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