Title :
Parallel implementation of hybrid vector quantizer-based block truncation coding for mobile display stream compression
Author :
Ki-Won Oh ; Kang-Sun Choi
Author_Institution :
Sch. of Electr., Electron., & Commun. Eng., KoreaTECH, Cheonan, South Korea
Abstract :
This paper presents a parallel implementation of hybrid vector quantizer-based block truncation coding using Open Computing Language (OpenCL). Processing dependency in the conventional algorithm is removed by partitioning the input image and modifying neighboring reference pixel configuration. Experimental results show that the parallel implementation drastically reduce processing time by 6~7 times with significant visual quality improvement.
Keywords :
block codes; display devices; image coding; mobile handsets; Open Computing Language; OpenCL; hybrid vector quantizer-based block truncation coding; mobile display stream compression; neighboring reference pixel configuration; parallel implementation; visual quality improvement; Encoding; Image coding; Image color analysis; Indexes; Random access memory; Streaming media; Vectors; OpenCL; display stream compression; hybrid image compression; parallel implementation; vector quantization-based block truncation coding;
Conference_Titel :
Consumer Electronics (ISCE 2014), The 18th IEEE International Symposium on
Conference_Location :
JeJu Island
DOI :
10.1109/ISCE.2014.6884443
