Piecewise non-causal compression and subsequent decompression of quantized data for processing of decompressed data in higher precision processing space
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United States of America Patent
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Sep 17, 2013
Grant Date -
Nov 15, 2012
app pub date -
May 13, 2011
filing date -
May 13, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
Nonlinear compression of high precision image data (e.g., 12-bits per subpixel) conventionally calls for a large sized lookup table (LUT). A smaller sized and tunable circuit that performs compression with piecewise linear compressing segments is disclosed. The piecewise linear data compressing process is organized so that lumping together of plural ‘used’ high precision value points into one corresponding low precision data value point is avoided or at least minimized. In one embodiment, the compressed data is image defining data being processed for display on a nonconventional display screen where the piecewise linearly compressed data can be stored adjacent to other image data in a frame buffer where a composite image is assembled.
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International Classification(s)
- H04N:PICTORIAL COMMUNICATION, e.g. TELEVISION
- G09G:ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING....
- G06T:IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- H04B:TRANSMISSION
- G06F:ELECTRIC DIGITAL DATA PROCESSING
- G06G:ANALOGUE COMPUTERS
- G06J:HYBRID COMPUTING ARRANGEMENTS
- G06K:RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD ....
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