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US 2013/0294706 A1Published application
Limited error raster compression
AssigneeEnvironmental Systems Research Institute (ESRI)
InventorsThomas Maurer, Peng Gao, Peter Becker
Life of this patent
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AssigneeEnvironmental Systems Research Institute (ESRI)
InventorsThomas Maurer, Peng Gao, Peter Becker
Estimating the term…
Embodiments of the invention relate to an image or raster compression method that includes receiving pixel data for a raster comprising a two dimensional (2D) array of pixels where each pixel is associated with a data value. The method further includes receiving a user defined parameter defining a maximum error allowable per pixel for a compression algorithm. The raster can be divided into a number of pixel blocks where each pixel can be quantized and bit stuffed based on a number of block statistics including the maximum error allowable. The method further includes executing the compression algorithm wherein for each pixel, where an error caused by the compression algorithm is equal to or less than the maximum error allowable, and encoding the pixel data based on the compression algorithm. In certain embodiments, the compression algorithm is a non-transform compression algorithm.
A compression method comprising:
A non-transitory computer-readable storage medium comprising a plurality of computer-readable instructions tangibly embodied on the computer-readable storage medium, which, when executed by a data processor, provides a lossy compression method, the plurality of instructions comprising:
Dependencies are inferred from the claim text.