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dc.contributor.authorHsiao, Ming-Hoen_US
dc.contributor.authorChen, Yi-Wenen_US
dc.contributor.authorChen, Hua-Tsungen_US
dc.contributor.authorChou, Kuan-Hungen_US
dc.contributor.authorLee, Suh-Yinen_US
dc.date.accessioned2014-12-08T15:15:08Z-
dc.date.available2014-12-08T15:15:08Z-
dc.date.issued2007en_US
dc.identifier.issn1687-6172en_US
dc.identifier.urihttp://hdl.handle.net/11536/11369-
dc.identifier.urihttp://dx.doi.org/10.1155/2007/17179en_US
dc.description.abstractWith the development of wireless network and the improvement of mobile device capability, video streaming is more and more widespread in such an environment. Under the condition of limited resource and inherent constraints, appropriate video adaptations have become one of the most important and challenging issues in wireless multimedia applications. In this paper, we propose a novel content- aware video adaptation in order to e. effectively utilize resource and improve visual perceptual quality. First, the attention model is derived from analyzing the characteristics of brightness, location, motion vector, and energy features in compressed domain to reduce computation complexity. Then, through the integration of attention model, capability of client device and correlational statistic model, attractive regions of video scenes are derived. The information object- ( IOB-) weighted rate distortion model is used for adjusting the bit allocation. Finally, the video adaptation scheme dynamically adjusts video bitstream in frame level and object level. Experimental results validate that the proposed scheme achieves better visual quality effectively and effciently.en_US
dc.language.isoen_USen_US
dc.titleContent-aware video adaptation under low-bitrate constrainten_US
dc.typeArticleen_US
dc.identifier.doi10.1155/2007/17179en_US
dc.identifier.journalEURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSINGen_US
dc.contributor.department交大工研院聯合研發中心zh_TW
dc.contributor.departmentNCTU/ITRI Joint Research Centeren_US
dc.identifier.wosnumberWOS:000249526300001-
dc.citation.woscount0-
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