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dc.contributor.authorCheng, HWen_US
dc.contributor.authorDung, LRen_US
dc.date.accessioned2014-12-08T15:39:41Z-
dc.date.available2014-12-08T15:39:41Z-
dc.date.issued2004-02-01en_US
dc.identifier.issn0098-3063en_US
dc.identifier.urihttp://dx.doi.org/10.1109/TCE.2004.1277884en_US
dc.identifier.urihttp://hdl.handle.net/11536/27099-
dc.description.abstractThe Motion estimator is a key element in many video compression systems and it tends to dominate the power consumption in them. With increasing demand of portable, power-aware multimedia devices, an architecture that can be flexible in both power consumption and compression quality is essential. To meet this requirement, this paper presents a novel power-aware architecture, called the Vario-Power Architecture, for the motion estimation. Based on a semi-systolic array with the content-based subsample algorithm, the architecture real-time disables some processing elements to reduce power consumption. By performing the edge extraction first, a threshold is then set as the criterion of whether to enable or disable processing elements and thus the switch activities of the system can be reduced. As the simulation shows, the architecture may operate at different power consumption modes according to the remaining capacity of the battery pack, giving little quality degradation and the power overhead under 0.36%.(1)en_US
dc.language.isoen_USen_US
dc.subjectmotion estimationen_US
dc.subjectVLSI architectureen_US
dc.subjectvideo compressionen_US
dc.subjectpower-aware architectureen_US
dc.subjectsubsampleen_US
dc.titleA vario-power ME architecture using content-based subsample algorithmen_US
dc.typeArticleen_US
dc.identifier.doi10.1109/TCE.2004.1277884en_US
dc.identifier.journalIEEE TRANSACTIONS ON CONSUMER ELECTRONICSen_US
dc.citation.volume50en_US
dc.citation.issue1en_US
dc.citation.spage349en_US
dc.citation.epage354en_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:000220257600052-
dc.citation.woscount3-
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