US 7,532,763 B2
Method and a device for processing bit symbols generated by a data source; a computer readable medium; a computer program element
Rongshan Yu, Centros (Singapore); Susanto Rahardja, Centros (Singapore); and Xiao Lin, Centros (Singapore)
Assigned to Agency for Science, Technology and Research, Singapore (Singapore)
Appl. No. 10/532,773
PCT Filed Oct. 24, 2002, PCT No. PCT/SG02/00248
§ 371(c)(1), (2), (4) Date Oct. 07, 2005,
PCT Pub. No. WO2004/042933, PCT Pub. Date May 21, 2004.
Prior Publication US 2006/0200709 A1, Sep. 07, 2006
Int. Cl. G06K 9/36 (2006.01); G06K 9/46 (2006.01)
U.S. Cl. 382—238  [382/233; 382/244; 382/247] 28 Claims
OG exemplary drawing
 
1. A method for processing bit symbols generated by a data source, in particular a video, still image or audio source, comprising:
constructing a plurality of bit-planes using the bit symbols generated by the data source, each bit-plane comprising a plurality of bit-plane symbols;
scanning the bit-plane symbols of each bit-plane to generate a binary string of bit-plane symbols;
encoding the binary string of the bit-plane symbols using a statistical model, wherein the statistical model is based on statistical properties of a Laplacian probability distribution function which characterizes the data source, wherein the Laplacian probability distribution function is defined by

OG Complex Work Unit Drawing
wherein σ is the standard deviation of the Laplacian probability distribution function.