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dc.contributor.authorWu, BFen_US
dc.contributor.authorLin, CFen_US
dc.date.accessioned2014-12-08T15:37:24Z-
dc.date.available2014-12-08T15:37:24Z-
dc.date.issued2004-11-01en_US
dc.identifier.issn0098-3063en_US
dc.identifier.urihttp://dx.doi.org/10.1109/TCE.2004.1362517en_US
dc.identifier.urihttp://hdl.handle.net/11536/25726-
dc.description.abstractJPEG2000 is a new international standard for still image compression. It provides various functions in one single coding stream and the better compression quality than the traditional JPEG, especially in the high compression ratio. However, the heavy computation and large internal memory requirement still restrict the consumer electronics applications. In this paper, we propose a QCB (quad code block)-based DWT method to achieve the higher parallelism than the traditional DWT approach of JPEG2000 coding process. Based on the QCB-based DWT engine, three code blocks con be completely generated after every fixed time slice recursively. Thus, the DWT and EBCOT processors can process simultaneously and the high computational EBCOT then has the higher parallelism of the JPEG2000 encoding system. By changing the output timing of the DWT process and parallelizing with EBCOT, the internal tile memory size can be reduced by a factor of 4. The memory access cycles between the internal tile memory and the code block memory also decrease with the smooth encoding flow(1).en_US
dc.language.isoen_USen_US
dc.subjectJPEG2000en_US
dc.subjectDWTen_US
dc.subjectEBCOTen_US
dc.subjectcode blocken_US
dc.subjectquad code blocken_US
dc.titleAn efficient architecture for JPEG2000 coprocessoren_US
dc.typeArticleen_US
dc.identifier.doi10.1109/TCE.2004.1362517en_US
dc.identifier.journalIEEE TRANSACTIONS ON CONSUMER ELECTRONICSen_US
dc.citation.volume50en_US
dc.citation.issue4en_US
dc.citation.spage1183en_US
dc.citation.epage1189en_US
dc.contributor.department電控工程研究所zh_TW
dc.contributor.departmentInstitute of Electrical and Control Engineeringen_US
dc.identifier.wosnumberWOS:000225363100031-
dc.citation.woscount6-
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