Partial image decompression of a tiled image

Details Partial image decompression of a tiled image Partial image decompression of a tiled image

2005-05-24

2005-05-24

Harrison, Chanté (Department: 2672)

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

C345S420000, C345S555000, C345S582000

Reexamination Certificate

active

06897858

ABSTRACT:
A decompression unit is configured to partially decompress a compressed image formed by compressed tiles. Each compressed tiles correspond to a tile of the uncompressed image. The decompression unit selects a subset of relevant tiles, which are visible in a view window or a view frustum. Specifically, the decompression unit includes a tile selector to select the relevant tile and a tile decompressor to decompress the relevant tiles. By decompressing only a subset of the compressed tiles, the decompression unit reduces the processing time required to generate the contents of the view window.

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