Foveated texture mapping with JPEG2000 compression

A current technique to control the rendering speed in interactive virtual worlds is the representation of object geometry using a hierarchical level of detail. Missing features can be supplied through the use of texture maps, but the reduced rendering time is bought at a trade-off in the amount of memory required to store the texture images. Compressed texturing techniques (e.g. S3TC, FTX1, VQ) offer some relief, but at a cost to image quality and detail. This paper proposes a solution using texture images compressed with JPEG2000. The foveated JPEG2000 texture mapping method (fJ2k) decompresses codestreams to resolutions that vary based on current rendering performance and position of the requested texture image in the field of view. The final result is a foveated viewport rendered at interactive frame rates using significantly less memory than current methods